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Home Return to list Gale Warning 0033 Issued by the Chicago Forecast Office
Action: New Issued At: 2025-12-19 19:53:02 561 WHUS73 KLOT 200152 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 752 PM CST Fri Dec 19 2025 LMZ740>743-201200- /O.NEW.KLOT.GL.W.0033.251220T0600Z-251220T1500Z/ /O.EXT.KLOT.SC.Y.0117.251220T1500Z-251221T1000Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 752 PM CST Fri Dec 19 2025 ...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST SATURDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM SATURDAY TO 4 AM CST SUNDAY... * WHAT...For the Gale Warning, gales to 35 kt and significant waves to 6 ft occasionally to 8 ft expected. For the Small Craft Advisory, winds to 30 kt and significant waves to 6 ft occasionally to 8 ft expected. * WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet Harbor IL to Gary IN. * WHEN...For the Gale Warning, from midnight tonight to 9 AM CST Saturday. For the Small Craft Advisory, from 9 AM Saturday to 4 AM CST Sunday. * 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. && $$ LMZ744-745-201200- /O.NEW.KLOT.GL.W.0033.251220T0600Z-251220T1500Z/ /O.EXT.KLOT.SC.Y.0117.251220T1500Z-251221T1800Z/ Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 752 PM CST Fri Dec 19 2025 ...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST SATURDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM SATURDAY TO NOON CST SUNDAY... * WHAT...For the Gale Warning, gales to 35 kt and significant waves to 5 ft expected. For the Small Craft Advisory, winds to 30 kt and significant waves to 7 ft occasionally to 9 ft expected. * WHERE...Gary to Michigan City IN. * WHEN...For the Gale Warning, from midnight tonight to 9 AM CST Saturday. For the Small Craft Advisory, from 9 AM Saturday to noon CST Sunday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Action: New Issued At: 2025-12-19 19:53:02 561 WHUS73 KLOT 200152 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 752 PM CST Fri Dec 19 2025 LMZ740>743-201200- /O.NEW.KLOT.GL.W.0033.251220T0600Z-251220T1500Z/ /O.EXT.KLOT.SC.Y.0117.251220T1500Z-251221T1000Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 752 PM CST Fri Dec 19 2025 ...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST SATURDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM SATURDAY TO 4 AM CST SUNDAY... * WHAT...For the Gale Warning, gales to 35 kt and significant waves to 6 ft occasionally to 8 ft expected. For the Small Craft Advisory, winds to 30 kt and significant waves to 6 ft occasionally to 8 ft expected. * WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet Harbor IL to Gary IN. * WHEN...For the Gale Warning, from midnight tonight to 9 AM CST Saturday. For the Small Craft Advisory, from 9 AM Saturday to 4 AM CST Sunday. * 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. && $$ LMZ744-745-201200- /O.NEW.KLOT.GL.W.0033.251220T0600Z-251220T1500Z/ /O.EXT.KLOT.SC.Y.0117.251220T1500Z-251221T1800Z/ Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 752 PM CST Fri Dec 19 2025 ...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST SATURDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM SATURDAY TO NOON CST SUNDAY... * WHAT...For the Gale Warning, gales to 35 kt and significant waves to 5 ft expected. For the Small Craft Advisory, winds to 30 kt and significant waves to 7 ft occasionally to 9 ft expected. * WHERE...Gary to Michigan City IN. * WHEN...For the Gale Warning, from midnight tonight to 9 AM CST Saturday. For the Small Craft Advisory, from 9 AM Saturday to noon CST Sunday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Action: Continued Issued At: 2025-12-20 03:16:42 121 WHUS73 KLOT 200916 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 316 AM CST Sat Dec 20 2025 LMZ740>743-201730- /O.CON.KLOT.GL.W.0033.000000T0000Z-251220T1500Z/ /O.CON.KLOT.SC.Y.0117.251220T1500Z-251221T1000Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 316 AM CST Sat Dec 20 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 4 AM CST SUNDAY... * WHAT...For the Gale Warning, south gales to 35 kt and significant waves to 6 ft occasionally to 8 ft expected. For the Small Craft Advisory, west winds to 30 kt and significant waves to 6 ft occasionally to 8 ft expected. A few gale force gusts possible tonight. * WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet Harbor IL to Gary IN. * WHEN...For the Gale Warning, until 9 AM CST this morning. For the Small Craft Advisory, from 9 AM this morning to 4 AM CST Sunday. * 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. && $$ LMZ744-745-201730- /O.CON.KLOT.GL.W.0033.000000T0000Z-251220T1500Z/ /O.CON.KLOT.SC.Y.0117.251220T1500Z-251221T1800Z/ Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 316 AM CST Sat Dec 20 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO NOON CST SUNDAY... * WHAT...For the Gale Warning, south gales to 35 kt and significant waves to 6 ft occasionally to 8 ft expected. For the Small Craft Advisory, west winds to 30 kt and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Gary to Michigan City IN. * WHEN...For the Gale Warning, until 9 AM CST this morning. For the Small Craft Advisory, from 9 AM this morning to noon CST Sunday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Action: Continued Issued At: 2025-12-20 03:16:42 121 WHUS73 KLOT 200916 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 316 AM CST Sat Dec 20 2025 LMZ740>743-201730- /O.CON.KLOT.GL.W.0033.000000T0000Z-251220T1500Z/ /O.CON.KLOT.SC.Y.0117.251220T1500Z-251221T1000Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 316 AM CST Sat Dec 20 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 4 AM CST SUNDAY... * WHAT...For the Gale Warning, south gales to 35 kt and significant waves to 6 ft occasionally to 8 ft expected. For the Small Craft Advisory, west winds to 30 kt and significant waves to 6 ft occasionally to 8 ft expected. A few gale force gusts possible tonight. * WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet Harbor IL to Gary IN. * WHEN...For the Gale Warning, until 9 AM CST this morning. For the Small Craft Advisory, from 9 AM this morning to 4 AM CST Sunday. * 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. && $$ LMZ744-745-201730- /O.CON.KLOT.GL.W.0033.000000T0000Z-251220T1500Z/ /O.CON.KLOT.SC.Y.0117.251220T1500Z-251221T1800Z/ Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 316 AM CST Sat Dec 20 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO NOON CST SUNDAY... * WHAT...For the Gale Warning, south gales to 35 kt and significant waves to 6 ft occasionally to 8 ft expected. For the Small Craft Advisory, west winds to 30 kt and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Gary to Michigan City IN. * WHEN...For the Gale Warning, until 9 AM CST this morning. For the Small Craft Advisory, from 9 AM this morning to noon CST Sunday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Action: Expired Issued At: 2025-12-20 09:15:15 298 WHUS73 KLOT 201514 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 914 AM CST Sat Dec 20 2025 LMZ740>743-202315- /O.EXP.KLOT.GL.W.0033.000000T0000Z-251220T1500Z/ /O.CON.KLOT.SC.Y.0117.000000T0000Z-251221T1000Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 914 AM CST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CST SUNDAY... * WHAT...Southwest winds to 30 kt becoming west to 25 kt this afternoon then to 30 kt this evening. Occasional gale gusts to 35 kt this morning and again this evening. Significant waves to 6 ft occasionally to 8 ft. * WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet Harbor IL to Gary IN. * WHEN...Until 4 AM CST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ744-745-202315- /O.EXP.KLOT.GL.W.0033.000000T0000Z-251220T1500Z/ /O.CON.KLOT.SC.Y.0117.000000T0000Z-251221T1800Z/ Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 914 AM CST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...Southwest winds to 30 kt becoming west to 25 kt this afternoon then to 30 kt this evening. Occasional gale gusts to 35 kt this morning. Significant waves to 8 ft occasionally to 10 ft. * WHERE...Gary to Michigan City IN. * WHEN...Until noon CST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Expired Issued At: 2025-12-20 09:15:15 298 WHUS73 KLOT 201514 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 914 AM CST Sat Dec 20 2025 LMZ740>743-202315- /O.EXP.KLOT.GL.W.0033.000000T0000Z-251220T1500Z/ /O.CON.KLOT.SC.Y.0117.000000T0000Z-251221T1000Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 914 AM CST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CST SUNDAY... * WHAT...Southwest winds to 30 kt becoming west to 25 kt this afternoon then to 30 kt this evening. Occasional gale gusts to 35 kt this morning and again this evening. Significant waves to 6 ft occasionally to 8 ft. * WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet Harbor IL to Gary IN. * WHEN...Until 4 AM CST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ744-745-202315- /O.EXP.KLOT.GL.W.0033.000000T0000Z-251220T1500Z/ /O.CON.KLOT.SC.Y.0117.000000T0000Z-251221T1800Z/ Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 914 AM CST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON CST SUNDAY... * WHAT...Southwest winds to 30 kt becoming west to 25 kt this afternoon then to 30 kt this evening. Occasional gale gusts to 35 kt this morning. Significant waves to 8 ft occasionally to 10 ft. * WHERE...Gary to Michigan City IN. * WHEN...Until noon CST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||