FZUS53 KGRB 200856 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 356 AM CDT Fri Mar 20 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-201600- 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- 356 AM CDT Fri Mar 20 2026 .EARLY THIS MORNING...W wind 5 to 10 kts. Waves 2 ft or less. Mostly cloudy. .TODAY...NW wind 5 to 10 kts veering N early in the afternoon. Waves 2 ft or less. Partly sunny. .TONIGHT...NW wind 5 to 10 kts backing SW in the late evening and overnight. Waves 2 ft or less. Mostly cloudy. .SATURDAY...S wind 5 to 10 kts. Waves 2 ft or less. Mostly cloudy. .SATURDAY NIGHT...SE wind 5 to 10 kts backing N 10 to 15 kts in the late evening and overnight. Waves 2 ft or less. A chance of light rain. $$ LMZ541-201600- Rock Island Passage to Sturgeon Bay WI- 356 AM CDT Fri Mar 20 2026 .EARLY THIS MORNING...W wind 5 to 10 kts. Waves 1 to 3 ft. Mostly cloudy. .TODAY...NW wind 5 to 10 kts veering N early in the afternoon. Waves 1 to 3 ft. Partly sunny. .TONIGHT...N wind 5 to 10 kts backing SW in the late evening and overnight. Waves 2 ft or less. Mostly cloudy. .SATURDAY...S wind 10 to 15 kts. Waves 1 to 3 ft. Mostly cloudy. .SATURDAY NIGHT...S wind 10 to 15 kts backing NE in the late evening and overnight. Waves 1 to 3 ft. A chance of light rain. $$ LMZ542-543-201600- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 356 AM CDT Fri Mar 20 2026 .EARLY THIS MORNING...W wind 10 to 15 kts. Waves 1 to 3 ft. Mostly cloudy. .TODAY...NW wind 10 to 15 kts veering N 5 to 10 kts early in the afternoon. Waves 1 to 3 ft. Partly sunny. .TONIGHT...N wind 5 to 10 kts backing S in the late evening and overnight. Waves 2 ft or less. Mostly cloudy. .SATURDAY...S wind 10 to 15 kts. Waves 2 to 4 ft. Mostly cloudy. .SATURDAY NIGHT...S wind 10 to 15 kts veering NW, then veering N after midnight. Waves 2 to 4 ft. A chance of light rain after midnight. $$ See Lake Michigan Open Lake Forecast for Sunday through Tuesday. Wave height forecast is for ice free areas.