FZUS53 KGRB 152156 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 456 PM CDT Thu Oct 15 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-160400- 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- 456 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... .LATE THIS AFTERNOON...E wind 5 to 10 kts. Waves 2 ft or less. Rain. .TONIGHT...E wind 5 to 10 kts becoming N 15 to 25 kts in the late evening and overnight. Waves 2 ft or less building to 3 to 5 ft after midnight. Rain. .FRIDAY...N wind to 30 kts with gale force gusts to around 40 kts. Waves 5 to 8 ft. A chance of light rain in the morning. .FRIDAY NIGHT...NW wind 15 to 25 kts decreasing to 10 to 15 kts after midnight. Waves 4 to 7 ft subsiding to 1 to 3 ft after midnight. Mostly clear. .SATURDAY...W wind 10 to 15 kts backing SW 15 to 25 kts in the late morning and afternoon. Waves 1 to 3 ft building to 3 to 5 ft in the afternoon. Sunny. A Small Craft Advisory may be needed. $$ LMZ541>543-160400- Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 456 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... .LATE THIS AFTERNOON...E wind 10 to 15 kts. Waves 2 to 4 ft. Rain. .TONIGHT...E wind 10 to 15 kts backing N, then backing NW 15 to 25 kts after midnight. Waves 2 to 4 ft. Rain. .FRIDAY...N wind to 30 kts increasing to gales to 35 kts in the late morning and afternoon. Gusts to 40 kts. Waves 4 to 7 ft building to 6 to 10 ft in the afternoon. Light rain likely in the morning. .FRIDAY NIGHT...N wind to 30 kts with gale force gusts to around 35 kts becoming NW 10 to 20 kts with gale force gusts to around 35 kts in the late evening and overnight. Waves 5 to 8 ft. Mostly clear. .SATURDAY...SW wind 15 to 25 kts. Waves 1 to 3 ft building to 2 to 4 ft in the afternoon. Sunny. $$ See Lake Michigan Open Lake Forecast for Sunday through Tuesday.