FZUS53 KGRB 251011 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 511 AM CDT Sat Apr 25 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-251600- 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- 511 AM CDT Sat Apr 25 2026 .EARLY THIS MORNING...N wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy. .TODAY...NE wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy in the morning then clearing. .TONIGHT...E wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy. .SUNDAY...E wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy. .SUNDAY NIGHT...E wind 5 to 10 kts veering SE 10 to 15 kts after midnight. Waves 2 ft or less. Partly cloudy in the evening then becoming mostly cloudy. $$ LMZ541-251600- Rock Island Passage to Sturgeon Bay WI- 511 AM CDT Sat Apr 25 2026 .EARLY THIS MORNING...N wind 5 to 10 kts. Waves 2 ft or less. Mostly cloudy. .TODAY...N wind 5 to 10 kts veering NE early in the afternoon. Waves 2 ft or less. Partly cloudy in the morning then becoming mostly sunny. .TONIGHT...E wind 5 to 10 kts veering SE after midnight. Waves 2 ft or less. Partly cloudy. .SUNDAY...SE wind 5 to 10 kts backing NE early in the afternoon. Waves 2 ft or less. Partly cloudy. .SUNDAY NIGHT...E wind 10 to 15 kts veering SE in the late evening and overnight. Waves 1 to 3 ft. Partly cloudy in the evening then becoming mostly cloudy. $$ LMZ542-543-251600- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 511 AM CDT Sat Apr 25 2026 .EARLY THIS MORNING...N wind 5 to 10 kts. Waves 2 ft or less. Mostly cloudy. .TODAY...N wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy in the morning then clearing. .TONIGHT...NE wind 10 to 15 kts veering SE 5 to 10 kts after midnight. Waves 1 to 3 ft. Partly cloudy. .SUNDAY...E wind 5 to 10 kts. Waves 2 ft or less. Partly sunny. .SUNDAY NIGHT...E wind 10 to 15 kts veering SE 15 to 25 kts after midnight. Waves 1 to 3 ft building to 3 to 5 ft after midnight. Partly cloudy in the evening then becoming mostly cloudy. A Small Craft Advisory may be needed. $$ See Lake Michigan Open Lake Forecast for Monday through Wednesday. Wave height forecast is for ice free areas.