FZUS53 KGRB 120255 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 955 PM CDT Sat Apr 11 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-121000- 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- 955 PM CDT Sat Apr 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT SUNDAY THROUGH LATE SUNDAY NIGHT... .REST OF TONIGHT...S wind 10 to 15 kts. Waves 1 to 3 ft. Rain showers and a chance of thunderstorms. .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. .MONDAY...W wind 10 to 15 kts veering NW 5 to 10 kts mid-day, then veering E early in the afternoon. Waves 2 ft or less. Partly sunny. $$ LMZ541-121000- Rock Island Passage to Sturgeon Bay WI- 955 PM CDT Sat Apr 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT SUNDAY THROUGH MONDAY MORNING... .REST OF TONIGHT...S wind 5 to 10 kts backing SE 10 to 20 kts in the late evening and overnight. Waves 1 to 3 ft building to 4 to 7 ft after midnight. A chance of showers early in the evening, then showers and a slight chance of thunderstorms after midnight. .SUNDAY...S wind 15 to 25 kts. Waves 4 to 7 ft. Rain showers likely in the morning. A chance of thunderstorms. A chance of showers in the afternoon. patchy fog in the afternoon. .SUNDAY NIGHT...SW wind 15 to 25 kts. Waves 5 to 8 ft subsiding to 4 to 7 ft after midnight. Areas of fog. a chance of showers. .MONDAY...W wind 10 to 15 kts veering N 5 to 10 kts mid-day, then veering E early in the afternoon. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Patchy fog. . A Small Craft Advisory may be needed. $$ LMZ542-543-121000- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 955 PM CDT Sat Apr 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT SUNDAY THROUGH MONDAY MORNING... .REST OF TONIGHT...SE wind 10 to 15 kts veering S 15 to 25 kts after midnight. Waves 2 ft or less building to 4 to 7 ft after midnight. A chance of showers early 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 likely in the morning. A chance of thunderstorms. A chance of showers in the afternoon. patchy fog in the afternoon. .SUNDAY NIGHT...SW wind to 30 kts. Waves 4 to 7 ft. Patchy fog. a chance of showers. .MONDAY...SW wind 10 to 15 kts backing SE early in the afternoon. Waves 2 to 4 ft subsiding to 1 to 3 ft in the afternoon. Patchy fog. . $$ See Lake Michigan Open Lake Forecast for Tuesday through Thursday. Wave height forecast is for ice free areas.