NWS Marine Forecast



 Hazardous marine condition(s):
 Hazardous Weather Outlook
   LMZ080-669-671-673-675-777-779-870-872-874-876-878-191530-  Lake Michigan from Michigan City IN to St. Joseph MI 5 NM  offshore to Mid Lake-  Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore  to Mid Lake-  Lake Michigan from Port Washington to North Point Light WI 5 NM  offshore to Mid Lake-  Lake Michigan from North Point Light to Wind Point WI 5 NM  offshore to Mid Lake-  Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM  offshore to Mid Lake-  Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM  offshore to Mid Lake-  Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM  offshore to Mid Lake-  Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid  Lake-  Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to  Mid Lake-  Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid  Lake-  Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid  Lake-  Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to  Mid Lake-  313 AM CDT Sat Sep 19 2026    SHEBOYGAN WI TO PENTWATER MI SOUTH...    TODAY  Southeast winds to 30 kt diminishing to 10 to 20 kt.  Showers and scattered thunderstorms this morning, then numerous  showers with isolated thunderstorms this afternoon. Waves 5 to  8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to  9 ft.  TONIGHT  Southeast winds 10 to 20 kt backing to northeast 15 to  25 kt. Numerous showers and scattered thunderstorms in the  evening, then scattered showers with isolated thunderstorms  overnight. Waves 4 to 6 ft occasionally to 8 ft.  SUNDAY  Northeast winds to 30 kt. Chance of showers. Waves 7 to  10 ft occasionally to 13 ft building to 8 to 11 ft occasionally  to 14 ft.  SUNDAY NIGHT  Northeast winds to 30 kt becoming east. Waves 10  to 14 ft occasionally to 18 ft subsiding to 8 to 11 ft  occasionally to 14 ft.  MONDAY  East winds to 30 kt becoming northeast. Waves 7 to 10  ft occasionally to 13 ft.  MONDAY NIGHT  Northeast winds to 30 kt becoming east. Waves  6 to 9 ft occasionally to 12 ft.  TUESDAY  Northeast winds to 30 kt. Waves 7 to 10 ft  occasionally to 13 ft.  WEDNESDAY  Northeast winds 15 to 25 kt. Waves 4 to 7 ft  occasionally to 9 ft.    $$