FZUS53 KGRB 220623 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 123 AM CDT Sat Aug 22 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-221000- 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- 123 AM CDT Sat Aug 22 2026 .REST OF THE NIGHT...NW wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy. .SATURDAY...NW wind 10 to 15 kts. Waves 1 to 3 ft. A chance of showers and thunderstorms in the afternoon. .SATURDAY NIGHT...NW wind 10 to 15 kts. Waves 1 to 3 ft. Mostly clear. .SUNDAY...N wind 10 to 15 kts. Waves 1 to 3 ft. Mostly sunny in the morning then becoming partly cloudy. $$ LMZ541>543-221000- Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 123 AM CDT Sat Aug 22 2026 .REST OF THE NIGHT...NW wind 5 to 10 kts. Waves 1 to 3 ft. Partly cloudy. .SATURDAY...NW wind 10 to 15 kts. Waves 1 to 3 ft. A chance of showers and thunderstorms in the afternoon. .SATURDAY NIGHT...NW wind 10 to 15 kts. Waves 1 to 3 ft. Mostly clear. .SUNDAY...N wind 10 to 20 kts. Waves 1 to 3 ft. Mostly sunny in the morning then becoming partly cloudy. $$ See Lake Michigan Open Lake Forecast for Monday through Wednesday.