FZUS53 KGRB 041807 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 107 PM CDT Sat Apr 4 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-042200- 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- 107 PM CDT Sat Apr 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... .THIS AFTERNOON...NW wind 5 to 10 kts backing SW 10 to 15 kts early in the afternoon. Waves 1 to 3 ft. Mostly cloudy. .TONIGHT...W wind 15 to 25 kts. Waves 1 to 3 ft. Mostly cloudy in the evening then becoming partly cloudy. .SUNDAY...NW wind 15 to 25 kts backing W 10 to 15 kts in the late morning and afternoon. Waves 1 to 3 ft. Mostly sunny. .SUNDAY NIGHT...W wind 5 to 10 kts. Waves 2 ft or less. A chance of light rain in the evening. $$ LMZ541-042200- Rock Island Passage to Sturgeon Bay WI- 107 PM CDT Sat Apr 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... .THIS AFTERNOON...SE wind 10 to 15 kts veering SW early in the afternoon. Waves 3 to 5 ft. A slight chance of light rain. .TONIGHT...W wind 15 to 25 kts. Waves 3 to 5 ft. Mostly cloudy in the evening then becoming partly cloudy. .SUNDAY...NW wind 15 to 25 kts decreasing to 10 to 15 kts in the late morning and afternoon. Waves 2 to 4 ft subsiding to 2 ft or less in the afternoon. Partly cloudy in the morning then clearing. .SUNDAY NIGHT...NW wind 5 to 10 kts. Waves 2 ft or less. Mostly cloudy in the evening then becoming partly cloudy. $$ LMZ542-543-042200- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 107 PM CDT Sat Apr 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... .THIS AFTERNOON...W wind 10 to 15 kts increasing to 15 to 25 kts early in the afternoon. Waves 3 to 5 ft. Mostly cloudy. .TONIGHT...W wind to 30 kts. Waves 2 to 4 ft. Partly cloudy. .SUNDAY...NW wind 15 to 25 kts backing W 10 to 15 kts early in the afternoon. Waves 2 to 4 ft subsiding to 2 ft or less in the afternoon. Mostly sunny. .SUNDAY NIGHT...W wind 10 to 15 kts. Waves 2 ft or less. A chance of light rain in the evening. $$ See Lake Michigan Open Lake Forecast for Monday through Wednesday. Wave height forecast is for ice free areas.