FZUS53 KGRB 031337 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 837 AM CDT Fri Apr 3 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-031600- 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- 837 AM CDT Fri Apr 3 2026 .TODAY...W wind 10 to 15 kts veering NE early in the afternoon. Waves 2 ft or less. A chance of light rain in the afternoon. .TONIGHT...NE wind 15 to 25 kts. Waves 1 to 3 ft building to 2 to 4 ft after midnight. Freezing rain likely in the evening. Rain. A slight chance of thunderstorms after midnight. A Small Craft Advisory may be needed. .SATURDAY...E wind 10 to 20 kts veering S 5 to 10 kts mid-day, then veering SW 10 to 15 kts early in the afternoon. Waves 3 to 5 ft subsiding to 2 ft or less in the afternoon. Light rain likely in the morning. .SATURDAY NIGHT...W wind 15 to 25 kts. Waves 1 to 3 ft. Partly cloudy in the evening then becoming mostly cloudy. A Small Craft Advisory may be needed. $$ LMZ541-031600- Rock Island Passage to Sturgeon Bay WI- 837 AM CDT Fri Apr 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...W wind 10 to 15 kts veering N early in the afternoon. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Mostly cloudy. .TONIGHT...E wind to 30 kts. Waves 2 to 4 ft building to 3 to 5 ft after midnight. Rain. A slight chance of thunderstorms after midnight. .SATURDAY...E wind 15 to 25 kts veering S 10 to 15 kts mid-day, then veering SW early in the afternoon. Waves 4 to 7 ft subsiding to 3 to 5 ft in the afternoon. Light rain likely in the morning. .SATURDAY NIGHT...W wind 15 to 25 kts. Waves 2 to 4 ft. Partly cloudy in the evening then becoming mostly cloudy. $$ LMZ542-543-031600- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 837 AM CDT Fri Apr 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...W wind 10 to 15 kts veering NE early in the afternoon. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. A chance of light rain in the afternoon. .TONIGHT...E wind 15 to 25 kts. Waves 3 to 5 ft. Rain and a slight chance of thunderstorms. .SATURDAY...SE wind 10 to 15 kts veering SW mid-day, then veering W 15 to 25 kts early in the afternoon. Waves 4 to 7 ft. A chance of light rain. .SATURDAY NIGHT...W wind to 30 kts. Waves 2 to 4 ft. Partly cloudy. $$ See Lake Michigan Open Lake Forecast for Sunday through Tuesday. Wave height forecast is for ice free areas.