FZUS53 KGRB 151133 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 633 AM CDT Thu Oct 15 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-151600- 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- 633 AM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... .TODAY...SE wind 10 to 15 kts. Waves 2 ft or less. A chance of drizzle and a slight chance of showers in the morning, then showers in the afternoon. .TONIGHT...NE wind 5 to 10 kts backing N 10 to 15 kts, then backing NW 15 to 25 kts after midnight. Waves 2 ft or less building to 2 to 4 ft after midnight. Rain showers. A Small Craft Advisory may be needed. .FRIDAY...N wind to 30 kts increasing to gales to 35 kts in the late morning and afternoon. Gusts to 40 kts. Waves 5 to 8 ft. A chance of showers in the morning. .FRIDAY NIGHT...N wind 15 to 25 kts with gale force gusts to around 35 kts becoming W 5 to 10 kts after midnight. Waves 4 to 7 ft. Mostly clear. $$ LMZ541>543-151600- Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 633 AM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... .TODAY...SE wind 10 to 15 kts. Waves 2 to 4 ft. A chance of showers and drizzle in the morning, then showers in the afternoon. .TONIGHT...E wind 10 to 15 kts backing N 15 to 25 kts in the late evening and overnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Rain showers. .FRIDAY...N wind 15 to 25 kts increasing to gales to 35 kts in the late morning and afternoon. Gusts to 45 kts. Waves 4 to 7 ft building to 6 to 10 ft in the afternoon. A chance of showers. .FRIDAY NIGHT...N wind to 30 kts with gale force gusts to around 35 kts becoming NW 10 to 20 kts with gale force gusts to around 35 kts in the late evening and overnight. Waves 5 to 8 ft. Partly cloudy in the evening then clearing. $$ See Lake Michigan Open Lake Forecast for Saturday through Monday.