FZUS53 KGRB 241340 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 840 AM CDT Fri Apr 24 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-241600- Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 840 AM CDT Fri Apr 24 2026 .TODAY...SE wind 10 to 15 kts backing N early in the afternoon. Waves 2 ft or less. Patchy fog. a slight chance of thunderstorms in the morning. A chance of showers. .TONIGHT...N wind 5 to 10 kts. Waves 2 ft or less. A slight chance of showers in the evening. .SATURDAY...NE wind 5 to 10 kts increasing to 10 to 15 kts early in the afternoon. Waves 2 ft or less. Partly cloudy. .SATURDAY NIGHT...NE wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy in the evening then becoming mostly cloudy. $$ LMZ541-241600- Rock Island Passage to Sturgeon Bay WI- 840 AM CDT Fri Apr 24 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...SE wind 10 to 15 kts backing N early in the afternoon. Waves 3 to 5 ft. Patchy fog. a chance of showers and thunderstorms in the morning. Rain showers likely in the afternoon. .TONIGHT...N wind 10 to 15 kts. Waves 2 to 4 ft. A slight chance of showers in the evening. .SATURDAY...NE wind 10 to 15 kts. Waves 2 ft or less. Partly cloudy. .SATURDAY NIGHT...NE wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy. $$ LMZ542-543-241600- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 840 AM CDT Fri Apr 24 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...S wind 10 to 15 kts veering NW early in the afternoon. Waves 3 to 5 ft. Patchy fog. a slight chance of thunderstorms in the morning. A chance of showers. .TONIGHT...N wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy in the evening then becoming mostly cloudy. .SATURDAY...NE wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy. .SATURDAY NIGHT...NE wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy in the evening then becoming mostly cloudy. $$ See Lake Michigan Open Lake Forecast for Sunday through Tuesday. Wave height forecast is for ice free areas.