FZUS53 KGRB 111337 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 837 AM CDT Sat Apr 11 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-111600- 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 Sat Apr 11 2026 .TODAY...S wind 5 to 10 kts increasing to 10 to 15 kts early in the afternoon. Waves 2 ft or less. Sunny in the morning then becoming partly cloudy. .TONIGHT...SE wind 10 to 15 kts. Waves 1 to 3 ft. A chance of showers in the evening. A slight chance of thunderstorms. Rain showers after midnight. .SUNDAY...S wind 15 to 25 kts. Waves 1 to 3 ft building to 2 to 4 ft in the afternoon. Rain showers in the morning, then a chance of showers in the afternoon. A Small Craft Advisory may be needed. .SUNDAY NIGHT...SW wind 15 to 25 kts decreasing to 10 to 15 kts after midnight. Waves 3 to 5 ft. Rain showers likely in the evening, then a chance of showers after midnight. $$ LMZ541-111600- Rock Island Passage to Sturgeon Bay WI- 837 AM CDT Sat Apr 11 2026 .TODAY...S wind 10 to 15 kts. Waves 1 to 3 ft. Mostly sunny. .TONIGHT...S wind 10 to 15 kts backing SE 15 to 25 kts after midnight. Waves 1 to 3 ft building to 4 to 7 ft after midnight. A chance of showers in the evening, then showers and a slight chance of thunderstorms after midnight. .SUNDAY...S wind 15 to 25 kts. Waves 5 to 8 ft. Rain showers in the morning, then a chance of showers in the afternoon. .SUNDAY NIGHT...SW wind to 30 kts decreasing to 10 to 20 kts after midnight. Waves 6 to 10 ft. Rain showers likely in the evening, then a chance of showers after midnight. $$ LMZ542-543-111600- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 837 AM CDT Sat Apr 11 2026 .TODAY...S wind 10 to 15 kts. Waves 1 to 3 ft. Sunny in the morning then becoming partly sunny. .TONIGHT...S wind 5 to 10 kts becoming SE 15 to 25 kts in the late evening and overnight. Waves 1 to 3 ft building to 4 to 7 ft after midnight. A chance of showers in the evening. A chance of thunderstorms. Rain showers after midnight. .SUNDAY...S wind 15 to 25 kts. Waves 5 to 8 ft. Rain showers in the morning. A chance of showers in the afternoon. .SUNDAY NIGHT...SW wind to 30 kts. Waves 5 to 8 ft subsiding to 4 to 7 ft after midnight. Rain showers likely in the evening, then a chance of showers after midnight. $$ See Lake Michigan Open Lake Forecast for Monday through Wednesday. Wave height forecast is for ice free areas.