FZUS53 KGRB 111950 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 250 PM CDT Sat Apr 11 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-112200- 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- 250 PM CDT Sat Apr 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE SUNDAY NIGHT... .THIS AFTERNOON...S wind 10 to 15 kts. Waves 2 ft or less. A slight chance of showers. .TONIGHT...SE wind 10 to 15 kts. Waves 1 to 3 ft. A chance of showers in the evening, then showers and a slight chance of thunderstorms after midnight. .SUNDAY...S wind 10 to 15 kts increasing to 15 to 25 kts early in the afternoon. Waves 2 to 4 ft. Rain showers likely in the morning. A chance of thunderstorms. A chance of showers in the afternoon. .SUNDAY NIGHT...SW wind 15 to 25 kts decreasing to 10 to 15 kts after midnight. Waves 3 to 5 ft. A chance of showers. $$ LMZ541-112200- Rock Island Passage to Sturgeon Bay WI- 250 PM CDT Sat Apr 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY MORNING... .THIS AFTERNOON...S wind 10 to 15 kts. Waves 1 to 3 ft. Mostly cloudy. .TONIGHT...S wind 10 to 20 kts. Waves 1 to 3 ft building to 4 to 7 ft after midnight. Rain showers. A slight chance of thunderstorms after midnight. .SUNDAY...S wind 15 to 25 kts. Waves 4 to 7 ft. Rain showers in the morning. A chance of thunderstorms. A chance of showers in the afternoon. .SUNDAY NIGHT...SW wind 15 to 25 kts. Waves 5 to 8 ft subsiding to 4 to 7 ft after midnight. A chance of showers. $$ LMZ542-543-112200- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 250 PM CDT Sat Apr 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY MORNING... .THIS AFTERNOON...S wind 10 to 20 kts. Waves 1 to 3 ft. A slight chance of showers. .TONIGHT...SE wind 10 to 15 kts veering S 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 likely in the morning. A chance of thunderstorms. A chance of showers in the afternoon. .SUNDAY NIGHT...SW wind to 30 kts. Waves 4 to 7 ft. A chance of showers in the evening. Rain showers likely after midnight. $$ See Lake Michigan Open Lake Forecast for Tuesday through Thursday. Wave height forecast is for ice free areas.