Marine Weather Message
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
538 WHUS73 KLOT 210224 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 924 PM CDT Wed Aug 20 2025 LMZ743>745-210900- /O.CON.KLOT.SC.Y.0077.000000T0000Z-250821T0900Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 924 PM CDT Wed Aug 20 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT THURSDAY... * WHAT...Northeast winds to 25 kt and significant waves to to 6 ft occasionally to 8 ft occurring. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...Until 4 AM CDT Thursday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ740>742-210900- /O.CON.KLOT.SC.Y.0078.000000T0000Z-250821T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 924 PM CDT Wed Aug 20 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT THURSDAY... * WHAT...Northeast winds to 20 kt and significant waves to to 6 ft occasionally to 8 ft occurring. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...Until 4 AM CDT Thursday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$