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Home Return to list Small Craft Advisory 0097 Issued by the Detroit / Pontiac Forecast Office
Action: New Issued At: 2025-12-17 14:42:52 443 WHUS73 KDTX 172042 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 342 PM EST Wed Dec 17 2025 LHZ361>363-462-180930- /O.NEW.KDTX.GL.W.0030.251218T0500Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 342 PM EST Wed Dec 17 2025 ...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 32 knots from the southwest with gusts up to 40 knots. The largest significant waves will be 12 feet with a potential maximum wave height of 17 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 11 AM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-180930- /O.NEW.KDTX.GL.W.0030.251218T1200Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 342 PM EST Wed Dec 17 2025 ...GALE WARNING IN EFFECT FROM 7 AM THURSDAY TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 31 knots from the southwest with gusts up to 39 knots. The largest significant waves will be 9 feet with a potential maximum wave height of 13 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 12 PM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ422-180930- /O.NEW.KDTX.LO.Y.0012.251218T1200Z-251220T0000Z/ /O.NEW.KDTX.SC.Y.0097.251218T1200Z-251219T0500Z/ /O.NEW.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 342 PM EST Wed Dec 17 2025 ...LOW WATER ADVISORY IN EFFECT FROM 7 AM THURSDAY TO 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM THURSDAY TO MIDNIGHT EST THURSDAY NIGHT... ...GALE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY EVENING... * WHAT...During the Low Water Advisory, abnormally low water levels expected. During the Small Craft Advisory, expect sustained winds up to 23 knots from the south with gusts up to 34 knots expected. During the Gale Watch, expect sustained winds up to 27 knots from the west with gusts up to 37 knots possible. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...During the Low Water Advisory, the maximum winds are expected around 5 AM EST Friday with the largest waves expected around. During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around. During the Gale Watch, the maximum winds are expected around 5 AM EST Friday with the largest waves expected around. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Persistent south to southwest gales Thursday will cause water levels to drop near or below low water datum. The current forecast is for water levels at Essexville to drop to 14 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ421-441>443-180930- /O.NEW.KDTX.SC.Y.0097.251218T0500Z-251219T0500Z/ /O.NEW.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 342 PM EST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT EST THURSDAY NIGHT... ...GALE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY EVENING... * WHAT...During the Small Craft Advisory, expect sustained winds up to 24 knots from the south with gusts up to 34 knots. The largest significant waves will be 5 feet with a potential maximum wave height of 7 feet. During the Gale Watch, expect sustained winds up to 29 knots from the west with gusts up to 37 knots. The largest significant waves will be 7 feet with a potential maximum wave height of 10 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 10 AM EST Thursday with the largest waves expected around 11 AM EST Thursday. During the Gale Watch, the maximum winds are expected around 6 AM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LCZ460-LEZ444-180930- /O.NEW.KDTX.SC.Y.0097.251218T1200Z-251220T0000Z/ Lake St Clair- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 342 PM EST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM THURSDAY TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 25 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. * WHERE...In Lake St Clair, Lake St Clair. In Lake Erie, Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 5 AM EST Friday with the largest waves expected around 5 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: New Issued At: 2025-12-17 14:42:52 443 WHUS73 KDTX 172042 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 342 PM EST Wed Dec 17 2025 LHZ361>363-462-180930- /O.NEW.KDTX.GL.W.0030.251218T0500Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 342 PM EST Wed Dec 17 2025 ...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 32 knots from the southwest with gusts up to 40 knots. The largest significant waves will be 12 feet with a potential maximum wave height of 17 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 11 AM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-180930- /O.NEW.KDTX.GL.W.0030.251218T1200Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 342 PM EST Wed Dec 17 2025 ...GALE WARNING IN EFFECT FROM 7 AM THURSDAY TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 31 knots from the southwest with gusts up to 39 knots. The largest significant waves will be 9 feet with a potential maximum wave height of 13 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 12 PM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ422-180930- /O.NEW.KDTX.LO.Y.0012.251218T1200Z-251220T0000Z/ /O.NEW.KDTX.SC.Y.0097.251218T1200Z-251219T0500Z/ /O.NEW.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 342 PM EST Wed Dec 17 2025 ...LOW WATER ADVISORY IN EFFECT FROM 7 AM THURSDAY TO 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM THURSDAY TO MIDNIGHT EST THURSDAY NIGHT... ...GALE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY EVENING... * WHAT...During the Low Water Advisory, abnormally low water levels expected. During the Small Craft Advisory, expect sustained winds up to 23 knots from the south with gusts up to 34 knots expected. During the Gale Watch, expect sustained winds up to 27 knots from the west with gusts up to 37 knots possible. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...During the Low Water Advisory, the maximum winds are expected around 5 AM EST Friday with the largest waves expected around. During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around. During the Gale Watch, the maximum winds are expected around 5 AM EST Friday with the largest waves expected around. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Persistent south to southwest gales Thursday will cause water levels to drop near or below low water datum. The current forecast is for water levels at Essexville to drop to 14 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ421-441>443-180930- /O.NEW.KDTX.SC.Y.0097.251218T0500Z-251219T0500Z/ /O.NEW.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 342 PM EST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT EST THURSDAY NIGHT... ...GALE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY EVENING... * WHAT...During the Small Craft Advisory, expect sustained winds up to 24 knots from the south with gusts up to 34 knots. The largest significant waves will be 5 feet with a potential maximum wave height of 7 feet. During the Gale Watch, expect sustained winds up to 29 knots from the west with gusts up to 37 knots. The largest significant waves will be 7 feet with a potential maximum wave height of 10 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 10 AM EST Thursday with the largest waves expected around 11 AM EST Thursday. During the Gale Watch, the maximum winds are expected around 6 AM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LCZ460-LEZ444-180930- /O.NEW.KDTX.SC.Y.0097.251218T1200Z-251220T0000Z/ Lake St Clair- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 342 PM EST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM THURSDAY TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 25 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. * WHERE...In Lake St Clair, Lake St Clair. In Lake Erie, Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 5 AM EST Friday with the largest waves expected around 5 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: New Issued At: 2025-12-17 14:42:52 443 WHUS73 KDTX 172042 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 342 PM EST Wed Dec 17 2025 LHZ361>363-462-180930- /O.NEW.KDTX.GL.W.0030.251218T0500Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 342 PM EST Wed Dec 17 2025 ...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 32 knots from the southwest with gusts up to 40 knots. The largest significant waves will be 12 feet with a potential maximum wave height of 17 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 11 AM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-180930- /O.NEW.KDTX.GL.W.0030.251218T1200Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 342 PM EST Wed Dec 17 2025 ...GALE WARNING IN EFFECT FROM 7 AM THURSDAY TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 31 knots from the southwest with gusts up to 39 knots. The largest significant waves will be 9 feet with a potential maximum wave height of 13 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 12 PM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ422-180930- /O.NEW.KDTX.LO.Y.0012.251218T1200Z-251220T0000Z/ /O.NEW.KDTX.SC.Y.0097.251218T1200Z-251219T0500Z/ /O.NEW.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 342 PM EST Wed Dec 17 2025 ...LOW WATER ADVISORY IN EFFECT FROM 7 AM THURSDAY TO 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM THURSDAY TO MIDNIGHT EST THURSDAY NIGHT... ...GALE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY EVENING... * WHAT...During the Low Water Advisory, abnormally low water levels expected. During the Small Craft Advisory, expect sustained winds up to 23 knots from the south with gusts up to 34 knots expected. During the Gale Watch, expect sustained winds up to 27 knots from the west with gusts up to 37 knots possible. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...During the Low Water Advisory, the maximum winds are expected around 5 AM EST Friday with the largest waves expected around. During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around. During the Gale Watch, the maximum winds are expected around 5 AM EST Friday with the largest waves expected around. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Persistent south to southwest gales Thursday will cause water levels to drop near or below low water datum. The current forecast is for water levels at Essexville to drop to 14 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ421-441>443-180930- /O.NEW.KDTX.SC.Y.0097.251218T0500Z-251219T0500Z/ /O.NEW.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 342 PM EST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT EST THURSDAY NIGHT... ...GALE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY EVENING... * WHAT...During the Small Craft Advisory, expect sustained winds up to 24 knots from the south with gusts up to 34 knots. The largest significant waves will be 5 feet with a potential maximum wave height of 7 feet. During the Gale Watch, expect sustained winds up to 29 knots from the west with gusts up to 37 knots. The largest significant waves will be 7 feet with a potential maximum wave height of 10 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 10 AM EST Thursday with the largest waves expected around 11 AM EST Thursday. During the Gale Watch, the maximum winds are expected around 6 AM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LCZ460-LEZ444-180930- /O.NEW.KDTX.SC.Y.0097.251218T1200Z-251220T0000Z/ Lake St Clair- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 342 PM EST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM THURSDAY TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 25 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. * WHERE...In Lake St Clair, Lake St Clair. In Lake Erie, Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 5 AM EST Friday with the largest waves expected around 5 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-12-18 02:44:37 409 WHUS73 KDTX 180843 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 343 AM EST Thu Dec 18 2025 LHZ361>363-462-182045- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 343 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 34 knots from the southwest with gusts up to 41 knots. The largest significant waves will be 14 feet with a potential maximum wave height of 20 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 11 AM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-182045- /O.CON.KDTX.GL.W.0030.251218T1200Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 343 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 33 knots from the southwest with gusts up to 40 knots. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 11 AM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-182045- /O.CON.KDTX.SC.Y.0097.251218T1200Z-251220T0000Z/ /O.EXB.KDTX.LO.Y.0012.251219T0900Z-251219T2100Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 343 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... ...LOW WATER ADVISORY IN EFFECT FROM 4 AM TO 4 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 30 knots from the southwest with brief gusts up to 35 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. During the Low Water Advisory, abnormally low water levels expected. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 8 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...At 2:54 AM EST Thursday, the water level at Toledo was 13 inches above low water datum. The critical mark for safe navigation is 8 inches below low water datum. A seiche is expected to cause water levels in the western basin to drop below the critical mark early Friday morning through at least most of the afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ422-182045- /O.CON.KDTX.LO.Y.0012.251218T1200Z-251220T0000Z/ /O.CON.KDTX.SC.Y.0097.251218T1200Z-251219T0500Z/ /O.CON.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 343 AM EST Thu Dec 18 2025 ...LOW WATER ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO MIDNIGHT EST TONIGHT... ...GALE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING... * WHAT...During the Low Water Advisory, abnormally low water levels expected. During the Small Craft Advisory, expect sustained winds up to 22 knots from the south with gusts up to 31 knots expected. During the Gale Watch, expect sustained winds up to 30 knots from the west with gusts up to 37 knots possible. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...During the Low Water Advisory, the maximum winds are expected around 9 AM EST Friday with the largest waves expected around. During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around. During the Gale Watch, the maximum winds are expected around 9 AM EST Friday with the largest waves expected around. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Persistent south to southwest near gales Thursday will cause water levels to drop near or below low water datum. The current forecast is for water levels at Essexville to drop to 14 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ421-441>443-182045- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.CON.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 343 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... ...GALE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING... * WHAT...During the Small Craft Advisory, expect sustained winds up to 26 knots from the south with gusts up to 35 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. During the Gale Watch, expect sustained winds up to 32 knots from the west with gusts up to 38 knots. The largest significant waves will be 8 feet with a potential maximum wave height of 11 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around 7 PM EST Thursday. During the Gale Watch, the maximum winds are expected around 12 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LCZ460-182045- /O.CON.KDTX.SC.Y.0097.251218T1200Z-251220T0000Z/ Lake St Clair- 343 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 28 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 1 feet with a potential maximum wave height of 2 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 7 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-12-18 02:44:37 409 WHUS73 KDTX 180843 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 343 AM EST Thu Dec 18 2025 LHZ361>363-462-182045- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 343 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 34 knots from the southwest with gusts up to 41 knots. The largest significant waves will be 14 feet with a potential maximum wave height of 20 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 11 AM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-182045- /O.CON.KDTX.GL.W.0030.251218T1200Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 343 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 33 knots from the southwest with gusts up to 40 knots. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 11 AM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-182045- /O.CON.KDTX.SC.Y.0097.251218T1200Z-251220T0000Z/ /O.EXB.KDTX.LO.Y.0012.251219T0900Z-251219T2100Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 343 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... ...LOW WATER ADVISORY IN EFFECT FROM 4 AM TO 4 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 30 knots from the southwest with brief gusts up to 35 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. During the Low Water Advisory, abnormally low water levels expected. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 8 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...At 2:54 AM EST Thursday, the water level at Toledo was 13 inches above low water datum. The critical mark for safe navigation is 8 inches below low water datum. A seiche is expected to cause water levels in the western basin to drop below the critical mark early Friday morning through at least most of the afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ422-182045- /O.CON.KDTX.LO.Y.0012.251218T1200Z-251220T0000Z/ /O.CON.KDTX.SC.Y.0097.251218T1200Z-251219T0500Z/ /O.CON.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 343 AM EST Thu Dec 18 2025 ...LOW WATER ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO MIDNIGHT EST TONIGHT... ...GALE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING... * WHAT...During the Low Water Advisory, abnormally low water levels expected. During the Small Craft Advisory, expect sustained winds up to 22 knots from the south with gusts up to 31 knots expected. During the Gale Watch, expect sustained winds up to 30 knots from the west with gusts up to 37 knots possible. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...During the Low Water Advisory, the maximum winds are expected around 9 AM EST Friday with the largest waves expected around. During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around. During the Gale Watch, the maximum winds are expected around 9 AM EST Friday with the largest waves expected around. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Persistent south to southwest near gales Thursday will cause water levels to drop near or below low water datum. The current forecast is for water levels at Essexville to drop to 14 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ421-441>443-182045- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.CON.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 343 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... ...GALE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING... * WHAT...During the Small Craft Advisory, expect sustained winds up to 26 knots from the south with gusts up to 35 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. During the Gale Watch, expect sustained winds up to 32 knots from the west with gusts up to 38 knots. The largest significant waves will be 8 feet with a potential maximum wave height of 11 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around 7 PM EST Thursday. During the Gale Watch, the maximum winds are expected around 12 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LCZ460-182045- /O.CON.KDTX.SC.Y.0097.251218T1200Z-251220T0000Z/ Lake St Clair- 343 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 28 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 1 feet with a potential maximum wave height of 2 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 7 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-12-18 02:44:37 409 WHUS73 KDTX 180843 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 343 AM EST Thu Dec 18 2025 LHZ361>363-462-182045- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 343 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 34 knots from the southwest with gusts up to 41 knots. The largest significant waves will be 14 feet with a potential maximum wave height of 20 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 11 AM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-182045- /O.CON.KDTX.GL.W.0030.251218T1200Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 343 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 33 knots from the southwest with gusts up to 40 knots. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 11 AM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-182045- /O.CON.KDTX.SC.Y.0097.251218T1200Z-251220T0000Z/ /O.EXB.KDTX.LO.Y.0012.251219T0900Z-251219T2100Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 343 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... ...LOW WATER ADVISORY IN EFFECT FROM 4 AM TO 4 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 30 knots from the southwest with brief gusts up to 35 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. During the Low Water Advisory, abnormally low water levels expected. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 8 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...At 2:54 AM EST Thursday, the water level at Toledo was 13 inches above low water datum. The critical mark for safe navigation is 8 inches below low water datum. A seiche is expected to cause water levels in the western basin to drop below the critical mark early Friday morning through at least most of the afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ422-182045- /O.CON.KDTX.LO.Y.0012.251218T1200Z-251220T0000Z/ /O.CON.KDTX.SC.Y.0097.251218T1200Z-251219T0500Z/ /O.CON.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 343 AM EST Thu Dec 18 2025 ...LOW WATER ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO MIDNIGHT EST TONIGHT... ...GALE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING... * WHAT...During the Low Water Advisory, abnormally low water levels expected. During the Small Craft Advisory, expect sustained winds up to 22 knots from the south with gusts up to 31 knots expected. During the Gale Watch, expect sustained winds up to 30 knots from the west with gusts up to 37 knots possible. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...During the Low Water Advisory, the maximum winds are expected around 9 AM EST Friday with the largest waves expected around. During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around. During the Gale Watch, the maximum winds are expected around 9 AM EST Friday with the largest waves expected around. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Persistent south to southwest near gales Thursday will cause water levels to drop near or below low water datum. The current forecast is for water levels at Essexville to drop to 14 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ421-441>443-182045- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.CON.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 343 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... ...GALE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING... * WHAT...During the Small Craft Advisory, expect sustained winds up to 26 knots from the south with gusts up to 35 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. During the Gale Watch, expect sustained winds up to 32 knots from the west with gusts up to 38 knots. The largest significant waves will be 8 feet with a potential maximum wave height of 11 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around 7 PM EST Thursday. During the Gale Watch, the maximum winds are expected around 12 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LCZ460-182045- /O.CON.KDTX.SC.Y.0097.251218T1200Z-251220T0000Z/ Lake St Clair- 343 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 28 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 1 feet with a potential maximum wave height of 2 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 7 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-12-18 02:44:37 409 WHUS73 KDTX 180843 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 343 AM EST Thu Dec 18 2025 LHZ361>363-462-182045- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 343 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 34 knots from the southwest with gusts up to 41 knots. The largest significant waves will be 14 feet with a potential maximum wave height of 20 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 11 AM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-182045- /O.CON.KDTX.GL.W.0030.251218T1200Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 343 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 33 knots from the southwest with gusts up to 40 knots. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 11 AM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-182045- /O.CON.KDTX.SC.Y.0097.251218T1200Z-251220T0000Z/ /O.EXB.KDTX.LO.Y.0012.251219T0900Z-251219T2100Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 343 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... ...LOW WATER ADVISORY IN EFFECT FROM 4 AM TO 4 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 30 knots from the southwest with brief gusts up to 35 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. During the Low Water Advisory, abnormally low water levels expected. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 8 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...At 2:54 AM EST Thursday, the water level at Toledo was 13 inches above low water datum. The critical mark for safe navigation is 8 inches below low water datum. A seiche is expected to cause water levels in the western basin to drop below the critical mark early Friday morning through at least most of the afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ422-182045- /O.CON.KDTX.LO.Y.0012.251218T1200Z-251220T0000Z/ /O.CON.KDTX.SC.Y.0097.251218T1200Z-251219T0500Z/ /O.CON.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 343 AM EST Thu Dec 18 2025 ...LOW WATER ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO MIDNIGHT EST TONIGHT... ...GALE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING... * WHAT...During the Low Water Advisory, abnormally low water levels expected. During the Small Craft Advisory, expect sustained winds up to 22 knots from the south with gusts up to 31 knots expected. During the Gale Watch, expect sustained winds up to 30 knots from the west with gusts up to 37 knots possible. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...During the Low Water Advisory, the maximum winds are expected around 9 AM EST Friday with the largest waves expected around. During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around. During the Gale Watch, the maximum winds are expected around 9 AM EST Friday with the largest waves expected around. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Persistent south to southwest near gales Thursday will cause water levels to drop near or below low water datum. The current forecast is for water levels at Essexville to drop to 14 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ421-441>443-182045- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.CON.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 343 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... ...GALE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING... * WHAT...During the Small Craft Advisory, expect sustained winds up to 26 knots from the south with gusts up to 35 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. During the Gale Watch, expect sustained winds up to 32 knots from the west with gusts up to 38 knots. The largest significant waves will be 8 feet with a potential maximum wave height of 11 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around 7 PM EST Thursday. During the Gale Watch, the maximum winds are expected around 12 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LCZ460-182045- /O.CON.KDTX.SC.Y.0097.251218T1200Z-251220T0000Z/ Lake St Clair- 343 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 28 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 1 feet with a potential maximum wave height of 2 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 7 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-12-18 08:43:13 428 WHUS73 KDTX 181442 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 942 AM EST Thu Dec 18 2025 LHZ422-190300- /O.CON.KDTX.LO.Y.0012.000000T0000Z-251220T0000Z/ /O.CON.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.UPG.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ /O.EXB.KDTX.GL.W.0030.251219T0500Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 942 AM EST Thu Dec 18 2025 ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... ...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 PM EST FRIDAY... * WHAT...During the Low Water Advisory, abnormally low water levels. During the Small Craft Advisory, expect sustained winds up to 22 knots from the south with gusts up to 30 knots. During the Gale Warning, expect sustained winds up to 28 knots from the west with gusts up to 37 knots expected. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around 7 PM EST Thursday. During the Gale Warning, the maximum winds are expected around 1 PM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Persistent south to southeast near gales today will cause water levels to drop near or below low water datum. The current forecast is for water levels at Essexville to periodically drop to 14 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ421-441>443-190300- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.UPG.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ /O.EXB.KDTX.GL.W.0030.251219T0500Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 942 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... ...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 26 knots from the south with gusts up to 33 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. During the Gale Warning, expect sustained winds up to 30 knots from the west with gusts up to 38 knots. The largest significant waves will be 8 feet with a potential maximum wave height of 11 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around 7 PM EST Thursday. During the Gale Warning, the maximum winds are expected around 1 PM EST Friday with the largest waves expected around 1 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ361>363-462-190300- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 942 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 34 knots with gusts up to 43 knots. Wind direction will shift from south today to northwest on Friday. The largest significant waves will be 14 feet with a potential maximum wave height of 20 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-190300- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 942 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 32 knots with gusts up to 40 knots. Wind direction will shift from south-southeast today to northwest on Friday. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-190300- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.251219T0900Z-251219T2100Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 942 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...LOW WATER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 27 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. During the Low Water Advisory, abnormally low water levels expected. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 8 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...At 9:30 AM EST Thursday, the water level at Toledo was 19 inches above low water datum. The critical mark for safe navigation is 8 inches below low water datum. A seiche is expected to cause water levels in the western basin to drop below the critical mark early Friday morning through at least most of the afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LCZ460-190300- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Lake St Clair- 942 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 24 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 10 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-12-18 08:43:13 428 WHUS73 KDTX 181442 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 942 AM EST Thu Dec 18 2025 LHZ422-190300- /O.CON.KDTX.LO.Y.0012.000000T0000Z-251220T0000Z/ /O.CON.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.UPG.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ /O.EXB.KDTX.GL.W.0030.251219T0500Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 942 AM EST Thu Dec 18 2025 ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... ...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 PM EST FRIDAY... * WHAT...During the Low Water Advisory, abnormally low water levels. During the Small Craft Advisory, expect sustained winds up to 22 knots from the south with gusts up to 30 knots. During the Gale Warning, expect sustained winds up to 28 knots from the west with gusts up to 37 knots expected. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around 7 PM EST Thursday. During the Gale Warning, the maximum winds are expected around 1 PM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Persistent south to southeast near gales today will cause water levels to drop near or below low water datum. The current forecast is for water levels at Essexville to periodically drop to 14 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ421-441>443-190300- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.UPG.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ /O.EXB.KDTX.GL.W.0030.251219T0500Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 942 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... ...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 26 knots from the south with gusts up to 33 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. During the Gale Warning, expect sustained winds up to 30 knots from the west with gusts up to 38 knots. The largest significant waves will be 8 feet with a potential maximum wave height of 11 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around 7 PM EST Thursday. During the Gale Warning, the maximum winds are expected around 1 PM EST Friday with the largest waves expected around 1 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ361>363-462-190300- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 942 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 34 knots with gusts up to 43 knots. Wind direction will shift from south today to northwest on Friday. The largest significant waves will be 14 feet with a potential maximum wave height of 20 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-190300- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 942 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 32 knots with gusts up to 40 knots. Wind direction will shift from south-southeast today to northwest on Friday. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-190300- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.251219T0900Z-251219T2100Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 942 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...LOW WATER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 27 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. During the Low Water Advisory, abnormally low water levels expected. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 8 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...At 9:30 AM EST Thursday, the water level at Toledo was 19 inches above low water datum. The critical mark for safe navigation is 8 inches below low water datum. A seiche is expected to cause water levels in the western basin to drop below the critical mark early Friday morning through at least most of the afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LCZ460-190300- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Lake St Clair- 942 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 24 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 10 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-12-18 08:43:13 428 WHUS73 KDTX 181442 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 942 AM EST Thu Dec 18 2025 LHZ422-190300- /O.CON.KDTX.LO.Y.0012.000000T0000Z-251220T0000Z/ /O.CON.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.UPG.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ /O.EXB.KDTX.GL.W.0030.251219T0500Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 942 AM EST Thu Dec 18 2025 ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... ...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 PM EST FRIDAY... * WHAT...During the Low Water Advisory, abnormally low water levels. During the Small Craft Advisory, expect sustained winds up to 22 knots from the south with gusts up to 30 knots. During the Gale Warning, expect sustained winds up to 28 knots from the west with gusts up to 37 knots expected. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around 7 PM EST Thursday. During the Gale Warning, the maximum winds are expected around 1 PM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Persistent south to southeast near gales today will cause water levels to drop near or below low water datum. The current forecast is for water levels at Essexville to periodically drop to 14 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ421-441>443-190300- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.UPG.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ /O.EXB.KDTX.GL.W.0030.251219T0500Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 942 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... ...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 26 knots from the south with gusts up to 33 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. During the Gale Warning, expect sustained winds up to 30 knots from the west with gusts up to 38 knots. The largest significant waves will be 8 feet with a potential maximum wave height of 11 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around 7 PM EST Thursday. During the Gale Warning, the maximum winds are expected around 1 PM EST Friday with the largest waves expected around 1 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ361>363-462-190300- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 942 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 34 knots with gusts up to 43 knots. Wind direction will shift from south today to northwest on Friday. The largest significant waves will be 14 feet with a potential maximum wave height of 20 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-190300- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 942 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 32 knots with gusts up to 40 knots. Wind direction will shift from south-southeast today to northwest on Friday. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-190300- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.251219T0900Z-251219T2100Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 942 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...LOW WATER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 27 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. During the Low Water Advisory, abnormally low water levels expected. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 8 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...At 9:30 AM EST Thursday, the water level at Toledo was 19 inches above low water datum. The critical mark for safe navigation is 8 inches below low water datum. A seiche is expected to cause water levels in the western basin to drop below the critical mark early Friday morning through at least most of the afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LCZ460-190300- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Lake St Clair- 942 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 24 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 10 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-12-18 08:43:13 428 WHUS73 KDTX 181442 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 942 AM EST Thu Dec 18 2025 LHZ422-190300- /O.CON.KDTX.LO.Y.0012.000000T0000Z-251220T0000Z/ /O.CON.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.UPG.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ /O.EXB.KDTX.GL.W.0030.251219T0500Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 942 AM EST Thu Dec 18 2025 ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... ...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 PM EST FRIDAY... * WHAT...During the Low Water Advisory, abnormally low water levels. During the Small Craft Advisory, expect sustained winds up to 22 knots from the south with gusts up to 30 knots. During the Gale Warning, expect sustained winds up to 28 knots from the west with gusts up to 37 knots expected. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around 7 PM EST Thursday. During the Gale Warning, the maximum winds are expected around 1 PM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Persistent south to southeast near gales today will cause water levels to drop near or below low water datum. The current forecast is for water levels at Essexville to periodically drop to 14 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ421-441>443-190300- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.UPG.KDTX.GL.A.0023.251219T0500Z-251220T0000Z/ /O.EXB.KDTX.GL.W.0030.251219T0500Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 942 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... ...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 26 knots from the south with gusts up to 33 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. During the Gale Warning, expect sustained winds up to 30 knots from the west with gusts up to 38 knots. The largest significant waves will be 8 feet with a potential maximum wave height of 11 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 7 PM EST Thursday with the largest waves expected around 7 PM EST Thursday. During the Gale Warning, the maximum winds are expected around 1 PM EST Friday with the largest waves expected around 1 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ361>363-462-190300- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 942 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 34 knots with gusts up to 43 knots. Wind direction will shift from south today to northwest on Friday. The largest significant waves will be 14 feet with a potential maximum wave height of 20 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-190300- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 942 AM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 32 knots with gusts up to 40 knots. Wind direction will shift from south-southeast today to northwest on Friday. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-190300- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.251219T0900Z-251219T2100Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 942 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...LOW WATER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 27 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. During the Low Water Advisory, abnormally low water levels expected. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 8 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...At 9:30 AM EST Thursday, the water level at Toledo was 19 inches above low water datum. The critical mark for safe navigation is 8 inches below low water datum. A seiche is expected to cause water levels in the western basin to drop below the critical mark early Friday morning through at least most of the afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LCZ460-190300- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Lake St Clair- 942 AM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 24 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 10 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-12-18 20:33:01 234 WHUS73 KDTX 190232 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 932 PM EST Thu Dec 18 2025 LHZ422-191445- /O.CAN.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.EXT.KDTX.GL.W.0030.251219T0232Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.000000T0000Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 932 PM EST Thu Dec 18 2025 ...GALE WARNING NOW IN EFFECT UNTIL 7 PM EST FRIDAY... ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY IS CANCELLED... * WHAT...During the Low Water Advisory, abnormally low water levels. During the Small Craft Advisory, expect sustained winds up to 22 knots from the south with gusts up to 30 knots. During the Gale Warning, expect sustained winds up to 28 knots from the west with gusts up to 37 knots expected. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 12 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Persistent southwest to west gales into Friday will cause water levels to drop near or below low water datum. The current forecast is for water levels at Essexville to periodically drop to 14 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ421-441>443-191445- /O.CAN.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.EXT.KDTX.GL.W.0030.251219T0232Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 932 PM EST Thu Dec 18 2025 ...GALE WARNING NOW IN EFFECT UNTIL 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY IS CANCELLED... * WHAT...During the Small Craft Advisory, expect sustained winds up to 26 knots from the south with gusts up to 33 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. During the Gale Warning, expect sustained winds up to 30 knots from the west with gusts up to 38 knots. The largest significant waves will be 8 feet with a potential maximum wave height of 11 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ361>363-462-191445- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 932 PM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 34 knots with gusts up to 43 knots. Wind direction will shift from south today to northwest on Friday. The largest significant waves will be 14 feet with a potential maximum wave height of 20 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-191445- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 932 PM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 32 knots with gusts up to 40 knots. Wind direction will shift from south-southeast today to northwest on Friday. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-191445- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.251219T0900Z-251219T2100Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 932 PM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...LOW WATER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 27 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. During the Low Water Advisory, abnormally low water levels expected. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 8 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...At 9 PM EST Thursday, the water level at Toledo was 14 inches above low water datum. The critical mark for safe navigation is 8 inches below low water datum. A seiche is expected to cause water levels in the western basin to drop to as much as a foot below the critical mark early Friday morning through most of the afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LCZ460-191445- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Lake St Clair- 932 PM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 24 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 10 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Cancelled Issued At: 2025-12-18 20:33:01 234 WHUS73 KDTX 190232 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 932 PM EST Thu Dec 18 2025 LHZ422-191445- /O.CAN.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.EXT.KDTX.GL.W.0030.251219T0232Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.000000T0000Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 932 PM EST Thu Dec 18 2025 ...GALE WARNING NOW IN EFFECT UNTIL 7 PM EST FRIDAY... ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY IS CANCELLED... * WHAT...During the Low Water Advisory, abnormally low water levels. During the Small Craft Advisory, expect sustained winds up to 22 knots from the south with gusts up to 30 knots. During the Gale Warning, expect sustained winds up to 28 knots from the west with gusts up to 37 knots expected. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 12 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Persistent southwest to west gales into Friday will cause water levels to drop near or below low water datum. The current forecast is for water levels at Essexville to periodically drop to 14 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ421-441>443-191445- /O.CAN.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.EXT.KDTX.GL.W.0030.251219T0232Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 932 PM EST Thu Dec 18 2025 ...GALE WARNING NOW IN EFFECT UNTIL 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY IS CANCELLED... * WHAT...During the Small Craft Advisory, expect sustained winds up to 26 knots from the south with gusts up to 33 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. During the Gale Warning, expect sustained winds up to 30 knots from the west with gusts up to 38 knots. The largest significant waves will be 8 feet with a potential maximum wave height of 11 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ361>363-462-191445- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 932 PM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 34 knots with gusts up to 43 knots. Wind direction will shift from south today to northwest on Friday. The largest significant waves will be 14 feet with a potential maximum wave height of 20 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-191445- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 932 PM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 32 knots with gusts up to 40 knots. Wind direction will shift from south-southeast today to northwest on Friday. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-191445- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.251219T0900Z-251219T2100Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 932 PM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...LOW WATER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 27 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. During the Low Water Advisory, abnormally low water levels expected. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 8 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...At 9 PM EST Thursday, the water level at Toledo was 14 inches above low water datum. The critical mark for safe navigation is 8 inches below low water datum. A seiche is expected to cause water levels in the western basin to drop to as much as a foot below the critical mark early Friday morning through most of the afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LCZ460-191445- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Lake St Clair- 932 PM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 24 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 10 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-12-18 20:33:01 234 WHUS73 KDTX 190232 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 932 PM EST Thu Dec 18 2025 LHZ422-191445- /O.CAN.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.EXT.KDTX.GL.W.0030.251219T0232Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.000000T0000Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 932 PM EST Thu Dec 18 2025 ...GALE WARNING NOW IN EFFECT UNTIL 7 PM EST FRIDAY... ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY IS CANCELLED... * WHAT...During the Low Water Advisory, abnormally low water levels. During the Small Craft Advisory, expect sustained winds up to 22 knots from the south with gusts up to 30 knots. During the Gale Warning, expect sustained winds up to 28 knots from the west with gusts up to 37 knots expected. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 12 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Persistent southwest to west gales into Friday will cause water levels to drop near or below low water datum. The current forecast is for water levels at Essexville to periodically drop to 14 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ421-441>443-191445- /O.CAN.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.EXT.KDTX.GL.W.0030.251219T0232Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 932 PM EST Thu Dec 18 2025 ...GALE WARNING NOW IN EFFECT UNTIL 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY IS CANCELLED... * WHAT...During the Small Craft Advisory, expect sustained winds up to 26 knots from the south with gusts up to 33 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. During the Gale Warning, expect sustained winds up to 30 knots from the west with gusts up to 38 knots. The largest significant waves will be 8 feet with a potential maximum wave height of 11 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ361>363-462-191445- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 932 PM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 34 knots with gusts up to 43 knots. Wind direction will shift from south today to northwest on Friday. The largest significant waves will be 14 feet with a potential maximum wave height of 20 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-191445- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 932 PM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 32 knots with gusts up to 40 knots. Wind direction will shift from south-southeast today to northwest on Friday. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-191445- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.251219T0900Z-251219T2100Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 932 PM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...LOW WATER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 27 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. During the Low Water Advisory, abnormally low water levels expected. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 8 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...At 9 PM EST Thursday, the water level at Toledo was 14 inches above low water datum. The critical mark for safe navigation is 8 inches below low water datum. A seiche is expected to cause water levels in the western basin to drop to as much as a foot below the critical mark early Friday morning through most of the afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LCZ460-191445- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Lake St Clair- 932 PM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 24 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 10 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Cancelled Issued At: 2025-12-18 20:33:01 234 WHUS73 KDTX 190232 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 932 PM EST Thu Dec 18 2025 LHZ422-191445- /O.CAN.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.EXT.KDTX.GL.W.0030.251219T0232Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.000000T0000Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 932 PM EST Thu Dec 18 2025 ...GALE WARNING NOW IN EFFECT UNTIL 7 PM EST FRIDAY... ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY IS CANCELLED... * WHAT...During the Low Water Advisory, abnormally low water levels. During the Small Craft Advisory, expect sustained winds up to 22 knots from the south with gusts up to 30 knots. During the Gale Warning, expect sustained winds up to 28 knots from the west with gusts up to 37 knots expected. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 12 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Persistent southwest to west gales into Friday will cause water levels to drop near or below low water datum. The current forecast is for water levels at Essexville to periodically drop to 14 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ421-441>443-191445- /O.CAN.KDTX.SC.Y.0097.000000T0000Z-251219T0500Z/ /O.EXT.KDTX.GL.W.0030.251219T0232Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 932 PM EST Thu Dec 18 2025 ...GALE WARNING NOW IN EFFECT UNTIL 7 PM EST FRIDAY... ...SMALL CRAFT ADVISORY IS CANCELLED... * WHAT...During the Small Craft Advisory, expect sustained winds up to 26 knots from the south with gusts up to 33 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. During the Gale Warning, expect sustained winds up to 30 knots from the west with gusts up to 38 knots. The largest significant waves will be 8 feet with a potential maximum wave height of 11 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ361>363-462-191445- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 932 PM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 34 knots with gusts up to 43 knots. Wind direction will shift from south today to northwest on Friday. The largest significant waves will be 14 feet with a potential maximum wave height of 20 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-191445- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 932 PM EST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 32 knots with gusts up to 40 knots. Wind direction will shift from south-southeast today to northwest on Friday. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-191445- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.251219T0900Z-251219T2100Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 932 PM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... ...LOW WATER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM EST FRIDAY... * WHAT...During the Small Craft Advisory, expect sustained winds up to 27 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. During the Low Water Advisory, abnormally low water levels expected. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 8 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...At 9 PM EST Thursday, the water level at Toledo was 14 inches above low water datum. The critical mark for safe navigation is 8 inches below low water datum. A seiche is expected to cause water levels in the western basin to drop to as much as a foot below the critical mark early Friday morning through most of the afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LCZ460-191445- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Lake St Clair- 932 PM EST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Expect sustained winds up to 24 knots from the southwest with gusts up to 33 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 10 AM EST Friday with the largest waves expected around 8 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-12-19 08:52:14 933 WHUS73 KDTX 191451 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 951 AM EST Fri Dec 19 2025 LHZ422-200000- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.000000T0000Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 951 AM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...During the Gale Warning, expect sustained winds up to 26 knots from the west with gusts up to 37 knots. During the Low Water Advisory, abnormally low water levels. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...The maximum winds are expected around 11 AM EST Friday with the largest waves expected around 12 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...The critical mark for safe navigation is 10 inches below low water datum. Water levels are expected to remain near or below the critical mark this morning through this afternoon. Water levels will slowly climb back above the critical mark tonight. At 936 AM, the water level at Essexville was 9 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ361>363-462-200000- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 951 AM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 33 knots from the northwest with gusts up to 41 knots. The largest significant waves will be 13 feet with a potential maximum wave height of 19 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 3 PM EST Friday with the largest waves expected around 4 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-200000- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 951 AM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 31 knots from the west with gusts up to 40 knots. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 6 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ421-441>443-200000- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 951 AM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 28 knots from the west with gusts up to 39 knots. The largest significant waves will be 7 feet with a potential maximum wave height of 10 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 12 PM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-200300- /O.EXT.KDTX.LO.Y.0012.000000T0000Z-251220T0300Z/ /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 951 AM EST Fri Dec 19 2025 ...LOW WATER ADVISORY NOW IN EFFECT UNTIL 10 PM EST THIS EVENING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...During the Low Water Advisory, abnormally low water levels. During the Small Craft Advisory, expect sustained winds up to 25 knots from the west with gusts up to 33 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 12 PM EST Friday with the largest waves expected around 12 PM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...The critical mark for safe navigation is 8 inches below low water datum. Water levels are expected to remain well below the critical mark this morning through this afternoon. Water levels will slowly climb back above the critical mark tonight. At 936 AM, the water level at Toledo was 20 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LCZ460-200000- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Lake St Clair- 951 AM EST Fri Dec 19 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 23 knots from the west with gusts up to 33 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 12 PM EST Friday with the largest waves expected around 1 PM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-12-19 08:52:14 933 WHUS73 KDTX 191451 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 951 AM EST Fri Dec 19 2025 LHZ422-200000- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.000000T0000Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 951 AM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...During the Gale Warning, expect sustained winds up to 26 knots from the west with gusts up to 37 knots. During the Low Water Advisory, abnormally low water levels. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...The maximum winds are expected around 11 AM EST Friday with the largest waves expected around 12 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...The critical mark for safe navigation is 10 inches below low water datum. Water levels are expected to remain near or below the critical mark this morning through this afternoon. Water levels will slowly climb back above the critical mark tonight. At 936 AM, the water level at Essexville was 9 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ361>363-462-200000- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 951 AM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 33 knots from the northwest with gusts up to 41 knots. The largest significant waves will be 13 feet with a potential maximum wave height of 19 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 3 PM EST Friday with the largest waves expected around 4 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-200000- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 951 AM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 31 knots from the west with gusts up to 40 knots. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 6 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ421-441>443-200000- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 951 AM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 28 knots from the west with gusts up to 39 knots. The largest significant waves will be 7 feet with a potential maximum wave height of 10 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 12 PM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-200300- /O.EXT.KDTX.LO.Y.0012.000000T0000Z-251220T0300Z/ /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 951 AM EST Fri Dec 19 2025 ...LOW WATER ADVISORY NOW IN EFFECT UNTIL 10 PM EST THIS EVENING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...During the Low Water Advisory, abnormally low water levels. During the Small Craft Advisory, expect sustained winds up to 25 knots from the west with gusts up to 33 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 12 PM EST Friday with the largest waves expected around 12 PM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...The critical mark for safe navigation is 8 inches below low water datum. Water levels are expected to remain well below the critical mark this morning through this afternoon. Water levels will slowly climb back above the critical mark tonight. At 936 AM, the water level at Toledo was 20 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LCZ460-200000- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Lake St Clair- 951 AM EST Fri Dec 19 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 23 knots from the west with gusts up to 33 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 12 PM EST Friday with the largest waves expected around 1 PM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-12-19 14:22:23 732 WHUS73 KDTX 192021 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 321 PM EST Fri Dec 19 2025 LHZ422-200000- /O.CAN.KDTX.LO.Y.0012.000000T0000Z-251220T0000Z/ /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 321 PM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... ...LOW WATER ADVISORY IS CANCELLED... * WHAT...Expect sustained winds up to 29 knots from the northwest with gusts up to 35 knots. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...The maximum winds are expected around 3 PM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...The critical mark for safe navigation is 10 inches below water datum. At 312 PM, the water level at Essexville was 0 inches below low water datum and continuing to rise. Therefore, the Low Water Advisory has been cancelled. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ361>363-462-200000- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 321 PM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 33 knots from the northwest with gusts up to 38 knots. The largest significant waves will be 13 feet with a potential maximum wave height of 19 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 3 PM EST Friday with the largest waves expected around 4 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-200000- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 321 PM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 31 knots from the northwest with gusts up to 36 knots. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 3 PM EST Friday with the largest waves expected around 6 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ421-441>443-200000- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 321 PM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 30 knots from the northwest with gusts up to 36 knots. The largest significant waves will be 7 feet with a potential maximum wave height of 10 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 3 PM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-200300- /O.CON.KDTX.LO.Y.0012.000000T0000Z-251220T0300Z/ /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 321 PM EST Fri Dec 19 2025 ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...During the Low Water Advisory, abnormally low water levels. During the Small Craft Advisory, expect sustained winds up to 23 knots from the west with gusts up to 31 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 3 PM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...The critical mark for safe navigation is 8 inches below low water datum. Water levels are expected to remain well below the critical mark this afternoon and evening. Water levels will slowly climb back above the critical mark tonight. At 312 PM, the water level at Toledo was 26 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LCZ460-200000- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Lake St Clair- 321 PM EST Fri Dec 19 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 23 knots from the west with gusts up to 31 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 3 PM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-12-19 14:22:23 732 WHUS73 KDTX 192021 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 321 PM EST Fri Dec 19 2025 LHZ422-200000- /O.CAN.KDTX.LO.Y.0012.000000T0000Z-251220T0000Z/ /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 321 PM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... ...LOW WATER ADVISORY IS CANCELLED... * WHAT...Expect sustained winds up to 29 knots from the northwest with gusts up to 35 knots. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...The maximum winds are expected around 3 PM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...The critical mark for safe navigation is 10 inches below water datum. At 312 PM, the water level at Essexville was 0 inches below low water datum and continuing to rise. Therefore, the Low Water Advisory has been cancelled. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ361>363-462-200000- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 321 PM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 33 knots from the northwest with gusts up to 38 knots. The largest significant waves will be 13 feet with a potential maximum wave height of 19 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore, Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore, Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 3 PM EST Friday with the largest waves expected around 4 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ463-464-200000- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 321 PM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 31 knots from the northwest with gusts up to 36 knots. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 3 PM EST Friday with the largest waves expected around 6 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ421-441>443-200000- /O.CON.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 321 PM EST Fri Dec 19 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 30 knots from the northwest with gusts up to 36 knots. The largest significant waves will be 7 feet with a potential maximum wave height of 10 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 3 PM EST Friday with the largest waves expected around 5 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-200300- /O.CON.KDTX.LO.Y.0012.000000T0000Z-251220T0300Z/ /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 321 PM EST Fri Dec 19 2025 ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...During the Low Water Advisory, abnormally low water levels. During the Small Craft Advisory, expect sustained winds up to 23 knots from the west with gusts up to 31 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 3 PM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...The critical mark for safe navigation is 8 inches below low water datum. Water levels are expected to remain well below the critical mark this afternoon and evening. Water levels will slowly climb back above the critical mark tonight. At 312 PM, the water level at Toledo was 26 inches below low water datum. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LCZ460-200000- /O.CON.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Lake St Clair- 321 PM EST Fri Dec 19 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Expect sustained winds up to 23 knots from the west with gusts up to 31 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 3 PM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Expired Issued At: 2025-12-19 17:59:28 832 WHUS73 KDTX 192359 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 659 PM EST Fri Dec 19 2025 LHZ361>363-462-200100- /O.EXP.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 659 PM EST Fri Dec 19 2025 ...GALE WARNING WILL EXPIRE AT 7 PM EST THIS EVENING... Wind gusts have been subsiding over the past couple of hours, with frequent gusts now at or below 30 knots. The Gale Warning will be allowed to expire. $$ LHZ463-464-200100- /O.EXP.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 659 PM EST Fri Dec 19 2025 ...GALE WARNING WILL EXPIRE AT 7 PM EST THIS EVENING... Wind gusts have been subsiding over the past couple of hours, with frequent gusts now at or below 30 knots. The Gale Warning will be allowed to expire. $$ LHZ421-422-441>443-200100- /O.EXP.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI- Port Sanilac to Port Huron MI- 659 PM EST Fri Dec 19 2025 ...GALE WARNING WILL EXPIRE AT 7 PM EST THIS EVENING... Wind gusts have been subsiding over the past couple of hours, with frequent gusts now at or below 30 knots. The Gale Warning will be allowed to expire. $$ LEZ444-200300- /O.EXP.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.000000T0000Z-251220T0300Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 659 PM EST Fri Dec 19 2025 ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 7 PM EST THIS EVENING... * WHAT...Abnormally low water levels. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 6 PM EST Friday with the largest waves expected around 6 PM EST Friday. * IMPACTS...Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...The critical mark for safe navigation is 8 inches below low water datum. Water levels are expected to remain below the critical mark this evening. Water levels will slowly climb back above the critical mark tonight. At 648 PM, the water level at Toledo was 27 inches below low water datum. The Small Craft Advisory will be allowed to expire as winds have subsided below 30 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LCZ460-200100- /O.EXP.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Lake St Clair- 659 PM EST Fri Dec 19 2025 ...SMALL CRAFT ADVISORY WILL EXPIRE AT 7 PM EST THIS EVENING... The Small Craft Advisory will be allowed to expire as winds have subsided below 30 knots. $$ MV Action: Expired Issued At: 2025-12-19 17:59:28 832 WHUS73 KDTX 192359 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 659 PM EST Fri Dec 19 2025 LHZ361>363-462-200100- /O.EXP.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 659 PM EST Fri Dec 19 2025 ...GALE WARNING WILL EXPIRE AT 7 PM EST THIS EVENING... Wind gusts have been subsiding over the past couple of hours, with frequent gusts now at or below 30 knots. The Gale Warning will be allowed to expire. $$ LHZ463-464-200100- /O.EXP.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 659 PM EST Fri Dec 19 2025 ...GALE WARNING WILL EXPIRE AT 7 PM EST THIS EVENING... Wind gusts have been subsiding over the past couple of hours, with frequent gusts now at or below 30 knots. The Gale Warning will be allowed to expire. $$ LHZ421-422-441>443-200100- /O.EXP.KDTX.GL.W.0030.000000T0000Z-251220T0000Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI- Port Sanilac to Port Huron MI- 659 PM EST Fri Dec 19 2025 ...GALE WARNING WILL EXPIRE AT 7 PM EST THIS EVENING... Wind gusts have been subsiding over the past couple of hours, with frequent gusts now at or below 30 knots. The Gale Warning will be allowed to expire. $$ LEZ444-200300- /O.EXP.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ /O.CON.KDTX.LO.Y.0012.000000T0000Z-251220T0300Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 659 PM EST Fri Dec 19 2025 ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 7 PM EST THIS EVENING... * WHAT...Abnormally low water levels. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 6 PM EST Friday with the largest waves expected around 6 PM EST Friday. * IMPACTS...Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...The critical mark for safe navigation is 8 inches below low water datum. Water levels are expected to remain below the critical mark this evening. Water levels will slowly climb back above the critical mark tonight. At 648 PM, the water level at Toledo was 27 inches below low water datum. The Small Craft Advisory will be allowed to expire as winds have subsided below 30 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LCZ460-200100- /O.EXP.KDTX.SC.Y.0097.000000T0000Z-251220T0000Z/ Lake St Clair- 659 PM EST Fri Dec 19 2025 ...SMALL CRAFT ADVISORY WILL EXPIRE AT 7 PM EST THIS EVENING... The Small Craft Advisory will be allowed to expire as winds have subsided below 30 knots. $$ MV | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||