FZUS53 KGRB 250856 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 356 AM CDT Wed Mar 25 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-251600- 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 Wed Mar 25 2026 .EARLY THIS MORNING...SE wind 5 to 10 kts. Waves 2 ft or less. Mostly cloudy. .TODAY...S wind 10 to 15 kts. Waves 2 ft or less. Mostly cloudy. .TONIGHT...SW wind 5 to 10 kts. Waves 2 ft or less. Mostly cloudy. .THURSDAY...N wind 5 to 10 kts increasing to 10 to 20 kts early in the afternoon. Waves 1 to 3 ft. A chance of light rain. .THURSDAY NIGHT...N wind 15 to 25 kts decreasing to 10 to 15 kts in the late evening and overnight. Waves 1 to 3 ft. Mostly cloudy in the evening then becoming partly cloudy. A Small Craft Advisory may be needed. $$ LMZ541-251600- Rock Island Passage to Sturgeon Bay WI- 356 AM CDT Wed Mar 25 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH LATE TONIGHT... .EARLY THIS MORNING...S wind 10 to 15 kts. Waves 1 to 3 ft. Cloudy. .TODAY...S wind 10 to 20 kts. Waves 2 to 4 ft building to 3 to 5 ft in the afternoon. Mostly cloudy. .TONIGHT...SW wind 5 to 10 kts. Waves 3 to 5 ft subsiding to 2 to 4 ft after midnight. Mostly cloudy. .THURSDAY...NW wind 10 to 15 kts veering N 15 to 25 kts early in the afternoon. Waves 1 to 3 ft building to 2 to 4 ft in the afternoon. A chance of light rain. .THURSDAY NIGHT...N wind 15 to 25 kts. Waves 3 to 5 ft. Mostly cloudy in the evening then becoming partly cloudy. $$ LMZ542-543-251600- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 356 AM CDT Wed Mar 25 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH LATE TONIGHT... .EARLY THIS MORNING...S wind 10 to 15 kts. Waves 2 ft or less. Mostly cloudy. .TODAY...S wind 10 to 20 kts. Waves 2 to 4 ft building to 3 to 5 ft in the afternoon. Mostly cloudy. .TONIGHT...SW wind 5 to 10 kts. Waves 3 to 5 ft subsiding to 2 to 4 ft after midnight. Partly cloudy. .THURSDAY...NW wind 5 to 10 kts veering N 10 to 15 kts mid-day, then increasing to 15 to 25 kts early in the afternoon. Waves 2 ft or less building to 3 to 5 ft in the afternoon. A chance of light rain. .THURSDAY NIGHT...N wind to 30 kts. Waves 5 to 8 ft. Mostly cloudy in the evening then becoming partly cloudy. $$ See Lake Michigan Open Lake Forecast for Friday through Sunday. Wave height forecast is for ice free areas.