


Marine Weather Message
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
032 WHUS73 KLOT 182004 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 304 PM CDT Fri Apr 18 2025 LMZ741>745-190200- /O.CON.KLOT.GL.W.0016.000000T0000Z-250419T0200Z/ 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- 304 PM CDT Fri Apr 18 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING... * WHAT...Southwest gales to 35 kt and significant waves to 4 ft expected. * WHERE...Calumet Harbor IL to Michigan City IN, and Wilmette Harbor to Calumet Harbor IL. * WHEN...Until 9 PM CDT 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. && $$ LMZ740-190200- /O.CON.KLOT.SC.Y.0052.000000T0000Z-250419T0200Z/ Winthrop Harbor to Wilmette Harbor IL- 304 PM CDT Fri Apr 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING... * WHAT...South winds to 30 kt and significant waves to 4 ft. * WHERE...Winthrop Harbor to Wilmette Harbor IL. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$