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Home Return to list Gale Warning 0016 Issued by the Chicago Forecast Office
Action: New Issued At: 2026-03-25 14:41:27 436 WHUS73 KLOT 251941 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 241 PM CDT Wed Mar 25 2026 LMZ740>745-260345- /O.CON.KLOT.SC.Y.0034.000000T0000Z-260326T0100Z/ /O.UPG.KLOT.GL.A.0010.260326T2100Z-260327T1200Z/ /O.NEW.KLOT.GL.W.0016.260326T2100Z-260327T1200Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 241 PM CDT Wed Mar 25 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...GALE WARNING IN EFFECT FROM 4 PM THURSDAY TO 7 AM CDT FRIDAY... * WHAT...For the Small Craft Advisory, south winds to 25 kt. For the Gale Warning, north gales to 35 kt and significant waves to 11 ft occasionally to 14 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...For the Small Craft Advisory, until 8 PM CDT this evening. For the Gale Warning, from 4 PM Thursday to 7 AM CDT 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. && $$ Action: Continued Issued At: 2026-03-25 20:11:07 936 WHUS73 KLOT 260110 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 810 PM CDT Wed Mar 25 2026 LMZ740>745-261030- /O.EXP.KLOT.SC.Y.0034.000000T0000Z-260326T0100Z/ /O.CON.KLOT.GL.W.0016.260326T2100Z-260327T1200Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 810 PM CDT Wed Mar 25 2026 ...GALE WARNING REMAINS IN EFFECT FROM 4 PM THURSDAY TO 7 AM CDT FRIDAY... ...SMALL CRAFT ADVISORY HAS EXPIRED... * WHAT...North gales to 35 kt and significant waves to 11 ft occasionally to 14 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor, IL to Michigan City, IN. * WHEN...From 4 PM Thursday to 7 AM CDT Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Action: Time Extended Issued At: 2026-03-26 03:27:21 955 WHUS73 KLOT 260827 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 327 AM CDT Thu Mar 26 2026 LMZ740>745-261630- /O.EXT.KLOT.GL.W.0016.260326T1800Z-260327T1200Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 327 AM CDT Thu Mar 26 2026 ...GALE WARNING NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 AM CDT FRIDAY... * WHAT...North gales to 40 kt and significant waves to 12 ft occasionally to 16 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...From 1 PM this afternoon to 7 AM CDT 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. && $$ Action: Continued Issued At: 2026-03-26 09:49:45 767 WHUS73 KLOT 261449 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 949 AM CDT Thu Mar 26 2026 LMZ740>745-262300- /O.CON.KLOT.GL.W.0016.260326T1800Z-260327T1200Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 949 AM CDT Thu Mar 26 2026 ...GALE WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 AM CDT FRIDAY... * WHAT...North gales to 40 kt and significant waves to 12 ft occasionally to 16 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...From 1 PM this afternoon to 7 AM CDT Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Action: Continued Issued At: 2026-03-26 14:47:54 247 WHUS73 KLOT 261947 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 247 PM CDT Thu Mar 26 2026 LMZ740>745-270400- /O.CON.KLOT.GL.W.0016.000000T0000Z-260327T1200Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 247 PM CDT Thu Mar 26 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT FRIDAY... * WHAT...North gales to 40 kt and significant waves to 14 ft occasionally to 18 ft. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 7 AM CDT 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. && $$ Action: Continued Issued At: 2026-03-26 21:44:37 310 WHUS73 KLOT 270244 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 944 PM CDT Thu Mar 26 2026 LMZ740>745-271045- /O.CON.KLOT.GL.W.0016.000000T0000Z-260327T1200Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 944 PM CDT Thu Mar 26 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT FRIDAY... * WHAT...North gales to 40 kt and significant waves to 14 ft occasionally to 18 ft. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 7 AM CDT Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Action: Continued Issued At: 2026-03-27 03:31:03 761 WHUS73 KLOT 270830 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 330 AM CDT Fri Mar 27 2026 LMZ740>745-271200- /O.CON.KLOT.GL.W.0016.000000T0000Z-260327T1200Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 330 AM CDT Fri Mar 27 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING... * WHAT...North gales to 35 kt and significant waves to 11 ft occasionally to 14 ft occurring. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 7 AM CDT this morning. * 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. && $$ Action: Cancelled Issued At: 2026-03-27 05:20:06 786 WHUS73 KLOT 271019 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 519 AM CDT Fri Mar 27 2026 LMZ740>745-271830- /O.CAN.KLOT.GL.W.0016.000000T0000Z-260327T1200Z/ /O.NEW.KLOT.SC.Y.0035.260327T1019Z-260328T0000Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 519 AM CDT Fri Mar 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...GALE WARNING IS CANCELLED... * WHAT...North winds to 30 kt and significant waves to 11 ft occasionally to 14 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||