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Home Return to list Ice Accretion Warning 0009 Issued by the Duluth Forecast Office
Action: New Issued At: 2025-12-17 19:09:57 302 WHUS73 KDLH 180109 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 709 PM CST Wed Dec 17 2025 LSZ148-150-181315- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T0200Z/ /O.CON.KDLH.GL.W.0041.251218T0200Z-251218T1000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.NEW.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CST THIS EVENING... ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 6 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, waves 1 to 2 ft. For the first Gale Warning, south winds 15 to 25 kt with gusts up to 35 kt and waves 2 to 5 ft expected. For the second Gale Warning, north winds 20 to 25 kt with gusts up to 40 kt and waves 6 to 9 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...For the Small Craft Advisory, until 8 PM CST this evening. For the first Gale Warning, until 4 AM CST Thursday. For the second Gale Warning, from 2 PM Thursday to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM Thursday to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ121-181315- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.NEW.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Chequamegon Bay-Bayfield to Oak Point WI- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 6 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 2 ft. For the Gale Warning, northwest winds 15 to 25 kt with gusts up to 40 kt and waves up to 3 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Chequamegon Bay-Bayfield to Oak Point WI. * WHEN...For the Small Craft Advisory, until 2 PM CST Thursday. For the Gale Warning, from 2 PM Thursday to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM Thursday to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ145>147-181315- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.NEW.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 6 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 15 to 25 kt with gusts up to 30 kt and waves 1 to 4 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 45 kt and waves 6 to 9 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Duluth MN to Port Wing WI, Port Wing to Sand Island WI and Sand Island to Bayfield WI. * WHEN...For the Small Craft Advisory, until 2 PM CST Thursday. For the Gale Warning, from 2 PM Thursday to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM Thursday to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ143-144-181315- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 3 to 6 ft expected. * WHERE...Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...For the Small Craft Advisory, until 2 PM CST Thursday. For the Gale Warning, from 2 PM Thursday to 4 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ140-141-181315- /O.CON.KDLH.SC.Y.0144.251218T0200Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 30 kt and waves 4 to 7 ft expected. For the Gale Warning, north winds 20 to 30 kt with gusts up to 50 kt and waves 3 to 6 ft expected. * WHERE...Grand Portage to Grand Marais MN and Grand Marais to Taconite Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST Thursday. For the Gale Warning, from 2 PM Thursday to 4 AM CST 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. && $$ LSZ142-181315- /O.CON.KDLH.SC.Y.0144.251218T0200Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Taconite Harbor to Silver Bay Harbor MN- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 5 to 15 kt with gusts up to 25 kt and waves 1 to 4 ft expected. For the Gale Warning, north winds 20 to 30 kt with gusts up to 45 kt and waves 2 to 5 ft expected. * WHERE...Taconite Harbor to Silver Bay Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST Thursday. For the Gale Warning, from 2 PM Thursday to 4 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Action: New Issued At: 2025-12-17 19:09:57 302 WHUS73 KDLH 180109 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 709 PM CST Wed Dec 17 2025 LSZ148-150-181315- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T0200Z/ /O.CON.KDLH.GL.W.0041.251218T0200Z-251218T1000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.NEW.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CST THIS EVENING... ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 6 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, waves 1 to 2 ft. For the first Gale Warning, south winds 15 to 25 kt with gusts up to 35 kt and waves 2 to 5 ft expected. For the second Gale Warning, north winds 20 to 25 kt with gusts up to 40 kt and waves 6 to 9 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...For the Small Craft Advisory, until 8 PM CST this evening. For the first Gale Warning, until 4 AM CST Thursday. For the second Gale Warning, from 2 PM Thursday to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM Thursday to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ121-181315- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.NEW.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Chequamegon Bay-Bayfield to Oak Point WI- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 6 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 2 ft. For the Gale Warning, northwest winds 15 to 25 kt with gusts up to 40 kt and waves up to 3 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Chequamegon Bay-Bayfield to Oak Point WI. * WHEN...For the Small Craft Advisory, until 2 PM CST Thursday. For the Gale Warning, from 2 PM Thursday to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM Thursday to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ145>147-181315- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.NEW.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 6 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 15 to 25 kt with gusts up to 30 kt and waves 1 to 4 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 45 kt and waves 6 to 9 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Duluth MN to Port Wing WI, Port Wing to Sand Island WI and Sand Island to Bayfield WI. * WHEN...For the Small Craft Advisory, until 2 PM CST Thursday. For the Gale Warning, from 2 PM Thursday to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM Thursday to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ143-144-181315- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 3 to 6 ft expected. * WHERE...Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...For the Small Craft Advisory, until 2 PM CST Thursday. For the Gale Warning, from 2 PM Thursday to 4 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ140-141-181315- /O.CON.KDLH.SC.Y.0144.251218T0200Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 30 kt and waves 4 to 7 ft expected. For the Gale Warning, north winds 20 to 30 kt with gusts up to 50 kt and waves 3 to 6 ft expected. * WHERE...Grand Portage to Grand Marais MN and Grand Marais to Taconite Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST Thursday. For the Gale Warning, from 2 PM Thursday to 4 AM CST 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. && $$ LSZ142-181315- /O.CON.KDLH.SC.Y.0144.251218T0200Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Taconite Harbor to Silver Bay Harbor MN- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 5 to 15 kt with gusts up to 25 kt and waves 1 to 4 ft expected. For the Gale Warning, north winds 20 to 30 kt with gusts up to 45 kt and waves 2 to 5 ft expected. * WHERE...Taconite Harbor to Silver Bay Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST Thursday. For the Gale Warning, from 2 PM Thursday to 4 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Action: New Issued At: 2025-12-17 19:09:57 302 WHUS73 KDLH 180109 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 709 PM CST Wed Dec 17 2025 LSZ148-150-181315- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T0200Z/ /O.CON.KDLH.GL.W.0041.251218T0200Z-251218T1000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.NEW.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CST THIS EVENING... ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 6 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, waves 1 to 2 ft. For the first Gale Warning, south winds 15 to 25 kt with gusts up to 35 kt and waves 2 to 5 ft expected. For the second Gale Warning, north winds 20 to 25 kt with gusts up to 40 kt and waves 6 to 9 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...For the Small Craft Advisory, until 8 PM CST this evening. For the first Gale Warning, until 4 AM CST Thursday. For the second Gale Warning, from 2 PM Thursday to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM Thursday to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ121-181315- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.NEW.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Chequamegon Bay-Bayfield to Oak Point WI- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 6 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 2 ft. For the Gale Warning, northwest winds 15 to 25 kt with gusts up to 40 kt and waves up to 3 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Chequamegon Bay-Bayfield to Oak Point WI. * WHEN...For the Small Craft Advisory, until 2 PM CST Thursday. For the Gale Warning, from 2 PM Thursday to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM Thursday to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ145>147-181315- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.NEW.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 6 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 15 to 25 kt with gusts up to 30 kt and waves 1 to 4 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 45 kt and waves 6 to 9 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Duluth MN to Port Wing WI, Port Wing to Sand Island WI and Sand Island to Bayfield WI. * WHEN...For the Small Craft Advisory, until 2 PM CST Thursday. For the Gale Warning, from 2 PM Thursday to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM Thursday to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ143-144-181315- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 3 to 6 ft expected. * WHERE...Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...For the Small Craft Advisory, until 2 PM CST Thursday. For the Gale Warning, from 2 PM Thursday to 4 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ140-141-181315- /O.CON.KDLH.SC.Y.0144.251218T0200Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 30 kt and waves 4 to 7 ft expected. For the Gale Warning, north winds 20 to 30 kt with gusts up to 50 kt and waves 3 to 6 ft expected. * WHERE...Grand Portage to Grand Marais MN and Grand Marais to Taconite Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST Thursday. For the Gale Warning, from 2 PM Thursday to 4 AM CST 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. && $$ LSZ142-181315- /O.CON.KDLH.SC.Y.0144.251218T0200Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Taconite Harbor to Silver Bay Harbor MN- 709 PM CST Wed Dec 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 5 to 15 kt with gusts up to 25 kt and waves 1 to 4 ft expected. For the Gale Warning, north winds 20 to 30 kt with gusts up to 45 kt and waves 2 to 5 ft expected. * WHERE...Taconite Harbor to Silver Bay Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST Thursday. For the Gale Warning, from 2 PM Thursday to 4 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Action: Continued Issued At: 2025-12-18 04:07:35 119 WHUS73 KDLH 181007 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 407 AM CST Thu Dec 18 2025 LSZ148-150-182215- /O.EXP.KDLH.GL.W.0041.000000T0000Z-251218T1000Z/ /O.NEW.KDLH.SC.Y.0145.251218T1007Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.CON.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 15 to 20 kt with gusts up to 30 kt and waves 1 to 4 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 11 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ140-141-182215- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.UPG.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.NEW.KDLH.SR.W.0004.251218T2100Z-251219T1000Z/ Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...STORM WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft. For the Storm Warning, north winds 20 to 30 kt with gusts up to 50 kt and waves 3 to 6 ft expected. * WHERE...Grand Portage to Grand Marais MN and Grand Marais to Taconite Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Storm Warning, from 3 PM this afternoon to 4 AM CST Friday. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ LSZ121-182215- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.CON.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Chequamegon Bay-Bayfield to Oak Point WI- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 15 kt with gusts up to 25 kt. For the Gale Warning, northwest winds 15 to 25 kt with gusts up to 35 kt and waves up to 3 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Chequamegon Bay-Bayfield to Oak Point WI. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ145>147-182215- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.CON.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 15 to 25 kt with gusts up to 30 kt and waves 2 to 5 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Duluth MN to Port Wing WI, Port Wing to Sand Island WI and Sand Island to Bayfield WI. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ143-144-182215- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 4 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 45 kt and waves 2 to 5 ft expected. * WHERE...Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...There is a 20% chance of a few storm- force winds to 50 knots between Duluth and Silver Bay early this evening. 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. && $$ LSZ142-182215- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Taconite Harbor to Silver Bay Harbor MN- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt and waves 2 to 4 ft. For the Gale Warning, north winds 20 to 30 kt with gusts up to 50 kt and waves 3 to 6 ft expected. * WHERE...Taconite Harbor to Silver Bay Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...There is a 40% chance of a few storm- force winds to 50 knots between Silver Bay and Taconite Harbor early this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Huyck Action: Continued Issued At: 2025-12-18 04:07:35 119 WHUS73 KDLH 181007 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 407 AM CST Thu Dec 18 2025 LSZ148-150-182215- /O.EXP.KDLH.GL.W.0041.000000T0000Z-251218T1000Z/ /O.NEW.KDLH.SC.Y.0145.251218T1007Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.CON.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 15 to 20 kt with gusts up to 30 kt and waves 1 to 4 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 11 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ140-141-182215- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.UPG.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.NEW.KDLH.SR.W.0004.251218T2100Z-251219T1000Z/ Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...STORM WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft. For the Storm Warning, north winds 20 to 30 kt with gusts up to 50 kt and waves 3 to 6 ft expected. * WHERE...Grand Portage to Grand Marais MN and Grand Marais to Taconite Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Storm Warning, from 3 PM this afternoon to 4 AM CST Friday. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ LSZ121-182215- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.CON.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Chequamegon Bay-Bayfield to Oak Point WI- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 15 kt with gusts up to 25 kt. For the Gale Warning, northwest winds 15 to 25 kt with gusts up to 35 kt and waves up to 3 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Chequamegon Bay-Bayfield to Oak Point WI. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ145>147-182215- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.CON.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 15 to 25 kt with gusts up to 30 kt and waves 2 to 5 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Duluth MN to Port Wing WI, Port Wing to Sand Island WI and Sand Island to Bayfield WI. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ143-144-182215- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 4 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 45 kt and waves 2 to 5 ft expected. * WHERE...Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...There is a 20% chance of a few storm- force winds to 50 knots between Duluth and Silver Bay early this evening. 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. && $$ LSZ142-182215- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Taconite Harbor to Silver Bay Harbor MN- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt and waves 2 to 4 ft. For the Gale Warning, north winds 20 to 30 kt with gusts up to 50 kt and waves 3 to 6 ft expected. * WHERE...Taconite Harbor to Silver Bay Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...There is a 40% chance of a few storm- force winds to 50 knots between Silver Bay and Taconite Harbor early this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Huyck Action: Continued Issued At: 2025-12-18 04:07:35 119 WHUS73 KDLH 181007 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 407 AM CST Thu Dec 18 2025 LSZ148-150-182215- /O.EXP.KDLH.GL.W.0041.000000T0000Z-251218T1000Z/ /O.NEW.KDLH.SC.Y.0145.251218T1007Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.CON.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 15 to 20 kt with gusts up to 30 kt and waves 1 to 4 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 11 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ140-141-182215- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.UPG.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.NEW.KDLH.SR.W.0004.251218T2100Z-251219T1000Z/ Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...STORM WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft. For the Storm Warning, north winds 20 to 30 kt with gusts up to 50 kt and waves 3 to 6 ft expected. * WHERE...Grand Portage to Grand Marais MN and Grand Marais to Taconite Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Storm Warning, from 3 PM this afternoon to 4 AM CST Friday. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ LSZ121-182215- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.CON.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Chequamegon Bay-Bayfield to Oak Point WI- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 15 kt with gusts up to 25 kt. For the Gale Warning, northwest winds 15 to 25 kt with gusts up to 35 kt and waves up to 3 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Chequamegon Bay-Bayfield to Oak Point WI. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ145>147-182215- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.CON.KDLH.UP.W.0009.251219T0000Z-251219T1000Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 15 to 25 kt with gusts up to 30 kt and waves 2 to 5 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Duluth MN to Port Wing WI, Port Wing to Sand Island WI and Sand Island to Bayfield WI. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 4 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ143-144-182215- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 4 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 45 kt and waves 2 to 5 ft expected. * WHERE...Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...There is a 20% chance of a few storm- force winds to 50 knots between Duluth and Silver Bay early this evening. 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. && $$ LSZ142-182215- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Taconite Harbor to Silver Bay Harbor MN- 407 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt and waves 2 to 4 ft. For the Gale Warning, north winds 20 to 30 kt with gusts up to 50 kt and waves 3 to 6 ft expected. * WHERE...Taconite Harbor to Silver Bay Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...There is a 40% chance of a few storm- force winds to 50 knots between Silver Bay and Taconite Harbor early this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Huyck Action: Time Extended Issued At: 2025-12-18 09:48:15 305 WHUS73 KDLH 181547 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 947 AM CST Thu Dec 18 2025 LSZ121-190400- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.EXT.KDLH.UP.W.0009.251219T0000Z-251219T1300Z/ Chequamegon Bay-Bayfield to Oak Point WI- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 7 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 5 to 15 kt with gusts up to 20 kt. For the Gale Warning, northwest winds 15 to 25 kt with gusts up to 35 kt and waves up to 3 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Chequamegon Bay-Bayfield to Oak Point WI. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 7 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ145>147-190400- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.EXT.KDLH.UP.W.0009.251219T0000Z-251219T1300Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 7 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 15 to 25 kt and waves 2 to 5 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Duluth MN to Port Wing WI, Port Wing to Sand Island WI and Sand Island to Bayfield WI. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 7 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ148-150-190400- /O.CON.KDLH.SC.Y.0145.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.EXT.KDLH.UP.W.0009.251219T0000Z-251219T1300Z/ Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 7 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 1 to 4 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 11 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 7 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ143-144-190400- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 4 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 45 kt and waves 2 to 5 ft expected. * WHERE...Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ142-190400- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Taconite Harbor to Silver Bay Harbor MN- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt and waves 2 to 4 ft. For the Gale Warning, north winds 20 to 30 kt with gusts up to 45 kt and waves 3 to 6 ft expected. * WHERE...Taconite Harbor to Silver Bay Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST 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. && $$ LSZ140-141-190400- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.SR.W.0004.251218T2100Z-251219T1000Z/ Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 5 ft. For the Storm Warning, north winds 20 to 30 kt with gusts up to 50 kt and waves 3 to 6 ft expected. * WHERE...Grand Portage to Grand Marais MN and Grand Marais to Taconite Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Storm Warning, from 3 PM this afternoon to 4 AM CST Friday. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ Action: Time Extended Issued At: 2025-12-18 09:48:15 305 WHUS73 KDLH 181547 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 947 AM CST Thu Dec 18 2025 LSZ121-190400- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.EXT.KDLH.UP.W.0009.251219T0000Z-251219T1300Z/ Chequamegon Bay-Bayfield to Oak Point WI- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 7 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 5 to 15 kt with gusts up to 20 kt. For the Gale Warning, northwest winds 15 to 25 kt with gusts up to 35 kt and waves up to 3 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Chequamegon Bay-Bayfield to Oak Point WI. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 7 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ145>147-190400- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.EXT.KDLH.UP.W.0009.251219T0000Z-251219T1300Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 7 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 15 to 25 kt and waves 2 to 5 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Duluth MN to Port Wing WI, Port Wing to Sand Island WI and Sand Island to Bayfield WI. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 7 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ148-150-190400- /O.CON.KDLH.SC.Y.0145.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.EXT.KDLH.UP.W.0009.251219T0000Z-251219T1300Z/ Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 7 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 1 to 4 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 11 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 7 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ143-144-190400- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 4 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 45 kt and waves 2 to 5 ft expected. * WHERE...Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ142-190400- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Taconite Harbor to Silver Bay Harbor MN- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt and waves 2 to 4 ft. For the Gale Warning, north winds 20 to 30 kt with gusts up to 45 kt and waves 3 to 6 ft expected. * WHERE...Taconite Harbor to Silver Bay Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST 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. && $$ LSZ140-141-190400- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.SR.W.0004.251218T2100Z-251219T1000Z/ Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 5 ft. For the Storm Warning, north winds 20 to 30 kt with gusts up to 50 kt and waves 3 to 6 ft expected. * WHERE...Grand Portage to Grand Marais MN and Grand Marais to Taconite Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Storm Warning, from 3 PM this afternoon to 4 AM CST Friday. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ Action: Time Extended Issued At: 2025-12-18 09:48:15 305 WHUS73 KDLH 181547 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 947 AM CST Thu Dec 18 2025 LSZ121-190400- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.EXT.KDLH.UP.W.0009.251219T0000Z-251219T1300Z/ Chequamegon Bay-Bayfield to Oak Point WI- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 7 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 5 to 15 kt with gusts up to 20 kt. For the Gale Warning, northwest winds 15 to 25 kt with gusts up to 35 kt and waves up to 3 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Chequamegon Bay-Bayfield to Oak Point WI. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 7 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ145>147-190400- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.EXT.KDLH.UP.W.0009.251219T0000Z-251219T1300Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 7 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 15 to 25 kt and waves 2 to 5 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Duluth MN to Port Wing WI, Port Wing to Sand Island WI and Sand Island to Bayfield WI. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 7 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ148-150-190400- /O.CON.KDLH.SC.Y.0145.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ /O.EXT.KDLH.UP.W.0009.251219T0000Z-251219T1300Z/ Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 7 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 1 to 4 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 11 ft expected. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. * WHERE...Oak Point to Saxon Harbor WI and Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. For the Heavy Freezing Spray Warning, from 6 PM this evening to 7 AM CST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ143-144-190400- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 4 ft. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 45 kt and waves 2 to 5 ft expected. * WHERE...Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ142-190400- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.GL.W.0042.251218T2000Z-251219T1000Z/ Taconite Harbor to Silver Bay Harbor MN- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt and waves 2 to 4 ft. For the Gale Warning, north winds 20 to 30 kt with gusts up to 45 kt and waves 3 to 6 ft expected. * WHERE...Taconite Harbor to Silver Bay Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Gale Warning, from 2 PM this afternoon to 4 AM CST 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. && $$ LSZ140-141-190400- /O.CON.KDLH.SC.Y.0144.000000T0000Z-251218T2000Z/ /O.CON.KDLH.SR.W.0004.251218T2100Z-251219T1000Z/ Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 947 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON... ...STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 4 AM CST FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 5 ft. For the Storm Warning, north winds 20 to 30 kt with gusts up to 50 kt and waves 3 to 6 ft expected. * WHERE...Grand Portage to Grand Marais MN and Grand Marais to Taconite Harbor MN. * WHEN...For the Small Craft Advisory, until 2 PM CST this afternoon. For the Storm Warning, from 3 PM this afternoon to 4 AM CST Friday. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ Action: Continued Issued At: 2025-12-18 15:33:53 183 WHUS73 KDLH 182133 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 333 PM CST Thu Dec 18 2025 LSZ121-145>148-150-190945- /O.CON.KDLH.GL.W.0042.000000T0000Z-251219T1000Z/ /O.CON.KDLH.UP.W.0009.251219T0000Z-251219T1300Z/ /O.NEW.KDLH.GL.A.0023.251220T1500Z-251221T0900Z/ Chequamegon Bay-Bayfield to Oak Point WI- Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 333 PM CST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 7 AM CST FRIDAY... ...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE SATURDAY NIGHT... * WHAT...For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and waves 5 to 8 ft. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. For the Gale Watch, west winds 20 to 30 kt with gusts up to 40 kt and waves 4 to 7 ft possible. * WHERE...Portions of Lake Superior. * WHEN...For the Gale Warning, until 4 AM CST Friday. For the Heavy Freezing Spray Warning, until 7 AM CST Friday. For the Gale Watch, from Saturday morning through late Saturday night. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ142>144-190945- /O.CON.KDLH.GL.W.0042.000000T0000Z-251219T1000Z/ /O.NEW.KDLH.GL.A.0023.251220T1500Z-251221T0900Z/ Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 333 PM CST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CST FRIDAY... ...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE SATURDAY NIGHT... * WHAT...For the Gale Warning, north winds 20 to 30 kt with gusts up to 45 kt and waves 2 to 5 ft. For the Gale Watch, west winds 15 to 25 kt with gusts up to 35 kt and waves 1 to 4 ft possible. * WHERE...Taconite Harbor to Silver Bay Harbor MN, Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...For the Gale Warning, until 4 AM CST Friday. For the Gale Watch, from Saturday morning through late Saturday night. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...Brief Storm-force gusts up to 50 knots may be possible early this evening between Silver Bay and Taconite Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ140-141-190945- /O.CON.KDLH.SR.W.0004.000000T0000Z-251219T1000Z/ /O.NEW.KDLH.GL.A.0023.251220T1500Z-251221T0900Z/ Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 333 PM CST Thu Dec 18 2025 ...STORM WARNING REMAINS IN EFFECT UNTIL 4 AM CST FRIDAY... ...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE SATURDAY NIGHT... * WHAT...For the Storm Warning, north winds 20 to 30 kt with gusts up to 50 kt and waves 3 to 6 ft. For the Gale Watch, west winds 15 to 25 kt with gusts up to 40 kt and waves 2 to 5 ft possible. * WHERE...Grand Portage to Grand Marais MN and Grand Marais to Taconite Harbor MN. * WHEN...For the Storm Warning, until 4 AM CST Friday. For the Gale Watch, from Saturday morning through late Saturday night. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ Action: Continued Issued At: 2025-12-18 22:02:33 451 WHUS73 KDLH 190401 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 1001 PM CST Thu Dec 18 2025 LSZ140-141-191615- /O.CAN.KDLH.SR.W.0004.000000T0000Z-251219T1000Z/ /O.EXA.KDLH.GL.W.0042.000000T0000Z-251219T1000Z/ /O.CON.KDLH.GL.A.0023.251220T1500Z-251221T0900Z/ Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 1001 PM CST Thu Dec 18 2025 ...GALE WARNING IN EFFECT UNTIL 4 AM CST FRIDAY... ...GALE WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH LATE SATURDAY NIGHT... ...STORM WARNING IS CANCELLED... * WHAT...For the Gale Warning, north winds 15 to 25 kt with gusts up to 45 kt and waves 2 to 5 ft. For the Gale Watch, west winds 15 to 25 kt with gusts up to 40 kt and waves 3 to 6 ft possible. * WHERE...Grand Portage to Grand Marais MN and Grand Marais to Taconite Harbor MN. * WHEN...For the Gale Warning, until 4 AM CST Friday. For the Gale Watch, from Saturday morning through late Saturday night. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ121-145>148-150-191615- /O.CON.KDLH.GL.W.0042.000000T0000Z-251219T1000Z/ /O.CON.KDLH.UP.W.0009.000000T0000Z-251219T1300Z/ /O.CON.KDLH.GL.A.0023.251220T1500Z-251221T0900Z/ Chequamegon Bay-Bayfield to Oak Point WI- Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 1001 PM CST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CST FRIDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 7 AM CST FRIDAY... ...GALE WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH LATE SATURDAY NIGHT... * WHAT...For the Gale Warning, north winds 20 to 25 kt with gusts up to 35 kt and waves 5 to 8 ft. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater may rapidly accumulate on vessels. For the Gale Watch, west winds 20 to 30 kt with gusts up to 40 kt and waves 5 to 8 ft possible. * WHERE...Portions of Lake Superior. * WHEN...For the Gale Warning, until 4 AM CST Friday. For the Heavy Freezing Spray Warning, until 7 AM CST Friday. For the Gale Watch, from Saturday morning through late Saturday night. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. && $$ LSZ142>144-191615- /O.CON.KDLH.GL.W.0042.000000T0000Z-251219T1000Z/ /O.CON.KDLH.GL.A.0023.251220T1500Z-251221T0900Z/ Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 1001 PM CST Thu Dec 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CST FRIDAY... ...GALE WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH LATE SATURDAY NIGHT... * WHAT...For the Gale Warning, north winds 15 to 20 kt with gusts up to 35 kt and waves 1 to 4 ft. For the Gale Watch, west winds 15 to 25 kt with gusts up to 30 kt and waves 1 to 4 ft possible. * WHERE...Taconite Harbor to Silver Bay Harbor MN, Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...For the Gale Warning, until 4 AM CST Friday. For the Gale Watch, from Saturday morning through late Saturday night. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Action: Continued Issued At: 2025-12-19 04:08:49 761 WHUS73 KDLH 191007 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 407 AM CST Fri Dec 19 2025 LSZ121-145>148-150-192215- /O.EXP.KDLH.GL.W.0042.000000T0000Z-251219T1000Z/ /O.NEW.KDLH.SC.Y.0146.251219T1007Z-251219T1600Z/ /O.CON.KDLH.UP.W.0009.000000T0000Z-251219T1300Z/ /O.EXT.KDLH.GL.A.0023.251220T1200Z-251221T0900Z/ /O.NEW.KDLH.UP.A.0001.251220T1800Z-251221T1000Z/ Chequamegon Bay-Bayfield to Oak Point WI- Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 407 AM CST Fri Dec 19 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 7 AM CST THIS MORNING... ...GALE WATCH NOW IN EFFECT FROM SATURDAY MORNING THROUGH LATE SATURDAY NIGHT... ...HEAVY FREEZING SPRAY WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE SATURDAY NIGHT... * WHAT...For the Small Craft Advisory, northwest winds 15 to 25 kt and waves 4 to 7 ft. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater may rapidly accumulate on vessels. For the Gale Watch, west winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 ft possible. For the Heavy Freezing Spray Watch, heavy freezing spray at a rate of 2 cm per hour or greater possible, and may rapidly accumulate on vessels. * WHERE...The South Shore Waters of western Lake Superior. * WHEN...For the Small Craft Advisory, until 10 AM CST this morning. For the Heavy Freezing Spray Warning, until 7 AM CST this morning. For the Gale Watch, from Saturday morning through late Saturday night. For the Heavy Freezing Spray Watch, from Saturday afternoon through late Saturday night. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. 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. && $$ LSZ140-192215- /O.EXP.KDLH.GL.W.0042.000000T0000Z-251219T1000Z/ /O.NEW.KDLH.SC.Y.0146.251219T1007Z-251219T1600Z/ /O.EXT.KDLH.GL.A.0023.251220T0600Z-251221T0900Z/ /O.NEW.KDLH.UP.A.0001.251220T1800Z-251221T0400Z/ Grand Portage to Grand Marais MN- 407 AM CST Fri Dec 19 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING... ...GALE WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH LATE SATURDAY NIGHT... ...HEAVY FREEZING SPRAY WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY EVENING... * WHAT...For the Small Craft Advisory, north winds 15 to 25 kt with gusts up to 35 kt and waves 1 to 4 ft. For the Gale Watch, west winds 20 to 30 kt with gusts up to 35 kt and waves 6 to 9 ft possible. For the Heavy Freezing Spray Watch, heavy freezing spray at a rate of 2 cm per hour or greater possible, and may rapidly accumulate on vessels. * WHERE...Grand Portage to Grand Marais MN. * WHEN...For the Small Craft Advisory, until 10 AM CST this morning. For the Gale Watch, from late tonight through late Saturday night. For the Heavy Freezing Spray Watch, from Saturday afternoon through Saturday evening. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid or mitigate hazardous accumulation of ice on their vessel. Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LSZ142>144-192215- /O.EXP.KDLH.GL.W.0042.000000T0000Z-251219T1000Z/ /O.NEW.KDLH.SC.Y.0146.251219T1007Z-251219T1600Z/ /O.CON.KDLH.GL.A.0023.251220T1500Z-251221T0900Z/ Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 407 AM CST Fri Dec 19 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING... ...GALE WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH LATE SATURDAY NIGHT... * WHAT...For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 3 ft. For the Gale Watch, west winds 15 to 25 kt with gusts up to 35 kt and waves 1 to 4 ft possible. * WHERE...Taconite Harbor to Silver Bay Harbor MN, Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...For the Small Craft Advisory, until 10 AM CST this morning. For the Gale Watch, from Saturday morning through late Saturday night. * 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. && $$ LSZ141-192215- /O.EXP.KDLH.GL.W.0042.000000T0000Z-251219T1000Z/ /O.NEW.KDLH.SC.Y.0146.251219T1007Z-251219T1600Z/ /O.CON.KDLH.GL.A.0023.251220T1500Z-251221T0900Z/ Grand Marais to Taconite Harbor MN- 407 AM CST Fri Dec 19 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING... ...GALE WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH LATE SATURDAY NIGHT... * WHAT...For the Small Craft Advisory, north winds 15 to 20 kt with gusts up to 30 kt and waves 1 to 3 ft. For the Gale Watch, west winds 15 to 25 kt with gusts up to 35 kt and waves 3 to 6 ft possible. * WHERE...Grand Marais to Taconite Harbor MN. * WHEN...For the Small Craft Advisory, until 10 AM CST this morning. For the Gale Watch, from Saturday morning through late Saturday night. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ Huyck | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||