FZUS53 KGRB 232306 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 606 PM CDT Sat May 23 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-240400- 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- 606 PM CDT Sat May 23 2026 .TONIGHT...E wind 5 to 10 kts veering SE after midnight. Waves 2 ft or less. Patchy fog after midnight. a chance of showers after midnight. .SUNDAY...S wind 5 to 10 kts. Waves 2 ft or less. Patchy fog in the morning. .SUNDAY NIGHT...S wind 5 to 10 kts veering SW after midnight. Waves 2 ft or less. Mostly clear. .MONDAY...S wind 10 to 15 kts. Waves 2 ft or less. Partly cloudy in the morning then clearing. $$ LMZ541-240400- Rock Island Passage to Sturgeon Bay WI- 606 PM CDT Sat May 23 2026 .TONIGHT...E wind 10 to 15 kts veering SE around 5 kts after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Patchy fog after midnight. a chance of showers after midnight. .SUNDAY...S wind 5 to 10 kts. Waves 2 ft or less. Patchy fog in the morning. .SUNDAY NIGHT...S wind 10 to 15 kts. Waves 2 ft or less. Patchy fog in the evening. .MONDAY...S wind 10 to 15 kts. Waves 2 ft or less building to 2 to 4 ft in the afternoon. Partly cloudy. $$ LMZ542-543-240400- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 606 PM CDT Sat May 23 2026 .TONIGHT...NE wind 5 to 10 kts veering SE in the late evening and overnight. Waves 2 ft or less. Patchy fog. a chance of showers after midnight. .SUNDAY...S wind 5 to 10 kts. Waves 2 ft or less. Patchy fog in the morning. .SUNDAY NIGHT...S wind 10 to 15 kts. Waves 2 ft or less. Patchy fog in the evening. .MONDAY...S wind 10 to 15 kts. Waves 2 ft or less building to 2 to 4 ft in the afternoon. Partly cloudy in the morning then becoming mostly sunny. $$ See Lake Michigan Open Lake Forecast for Tuesday through Thursday. Wave height forecast is for ice free areas.