FZUS53 KGRB 290731 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 231 AM CDT Sun Mar 29 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-291000- 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- 231 AM CDT Sun Mar 29 2026 .REST OF THE NIGHT...SW wind 10 to 15 kts. Waves 2 ft or less. Mostly cloudy. .SUNDAY...SW wind 5 to 10 kts backing S early in the afternoon. Waves 2 ft or less. Mostly cloudy in the morning then becoming mostly sunny. .SUNDAY NIGHT...S wind 5 to 10 kts veering SW after midnight. Waves 2 ft or less. Mostly clear in the evening then becoming mostly cloudy. .MONDAY...N wind 5 to 10 kts veering NE 10 to 15 kts in the late morning and afternoon. Waves 2 ft or less. Partly sunny. $$ LMZ541-291000- Rock Island Passage to Sturgeon Bay WI- 231 AM CDT Sun Mar 29 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .REST OF THE NIGHT...SW wind 10 to 15 kts. Waves 4 to 7 ft. Mostly cloudy. .SUNDAY...SW wind 5 to 10 kts backing S 10 to 15 kts early in the afternoon. Waves 3 to 5 ft. Mostly cloudy in the morning then becoming partly cloudy. .SUNDAY NIGHT...S wind 10 to 15 kts veering SW 5 to 10 kts after midnight. Waves 3 to 5 ft. Mostly clear in the evening then becoming mostly cloudy. A Small Craft Advisory may be needed. .MONDAY...N wind 5 to 10 kts veering NE 10 to 15 kts in the late morning and afternoon. Waves 2 to 4 ft. Partly sunny. $$ LMZ542-543-291000- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 231 AM CDT Sun Mar 29 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .REST OF THE NIGHT...SW wind 10 to 15 kts. Waves 3 to 5 ft. Mostly cloudy. .SUNDAY...S wind 10 to 15 kts. Waves 2 to 4 ft. Partly cloudy. .SUNDAY NIGHT...SW wind 10 to 15 kts. Waves 3 to 5 ft. Clear in the evening then becoming partly cloudy. A Small Craft Advisory may be needed. .MONDAY...SW wind 5 to 10 kts backing E 10 to 15 kts in the late morning and afternoon. Waves 1 to 3 ft. Partly cloudy. $$ See Lake Michigan Open Lake Forecast for Tuesday through Thursday. Wave height forecast is for ice free areas.