Marine Weather Message
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
825 WHUS73 KLOT 101547 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 947 AM CST Wed Dec 10 2025 LMZ740>743-102100- /O.CON.KLOT.GL.W.0030.000000T0000Z-251210T2100Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 947 AM CST Wed Dec 10 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... * WHAT...Northwest gales to 40 kt and significant waves to 11 ft occasionally to 14 ft. * WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet Harbor IL to Gary IN. * WHEN...Until 3 PM CST this afternoon. * 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. && $$ LMZ744-745-110000- /O.CON.KLOT.GL.W.0030.000000T0000Z-251211T0000Z/ Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 947 AM CST Wed Dec 10 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... * WHAT...Northwest gales to 40 kt and significant waves to 14 ft occasionally to 18 ft. * WHERE...Gary to Michigan City IN. * WHEN...Until 6 PM CST this evening. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$