


Marine Weather Message
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
279 WHUS73 KLOT 181504 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 1004 AM CDT Mon Aug 18 2025 LMZ740>742-181615- /O.EXP.KLOT.SC.Y.0076.000000T0000Z-250818T1500Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 1004 AM CDT Mon Aug 18 2025 ...SMALL CRAFT ADVISORY HAS EXPIRED... The small craft advisory is no longer in effect. $$