FZUS53 KGRB 121329 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 829 AM CDT Thu Mar 12 2026 For waters within five nautical miles of shore on Lake Michigan LMZ541-121600- Rock Island Passage to Sturgeon Bay WI- 829 AM CDT Thu Mar 12 2026 ...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH FRIDAY EVENING... .TODAY...W wind 10 to 15 kts backing S early in the afternoon. Waves 2 ft or less. Mostly sunny. .TONIGHT...S wind 15 to 25 kts increasing to gales to 35 kts, then decreasing to to 30 kts after midnight. Gusts to 45 kts. Waves 10 to 14 ft building to 14 to 18 ft after midnight. Snow in the evening. A slight chance of rain. A chance of light snow after midnight. .FRIDAY...W wind 15 to 25 kts veering NW to 30 kts in the late morning and afternoon. Gusts to 40 kts. Waves 8 to 12 ft subsiding to 4 to 7 ft in the afternoon. A chance of light snow. .FRIDAY NIGHT...NW wind 15 to 25 kts decreasing to 10 to 15 kts after midnight. Waves 2 to 4 ft subsiding to 2 ft or less after midnight. Partly cloudy. A Small Craft Advisory may be needed. $$ LMZ542-543-121600- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 829 AM CDT Thu Mar 12 2026 ...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH FRIDAY EVENING... .TODAY...W wind 10 to 15 kts backing S 10 to 20 kts early in the afternoon. Waves 1 to 3 ft. Sunny in the morning then becoming partly cloudy. .TONIGHT...S wind to 30 kts increasing to gales to 35 kts, then veering SW to 30 kts after midnight. Gusts to 50 kts. Waves 10 to 14 ft building to 14 to 18 ft after midnight. A slight chance of rain in the evening. Light snow. Light rain after midnight. .FRIDAY...W wind to 30 kts veering NW gales to 35 kts mid-day, then decreasing to to 30 kts early in the afternoon. Gusts to 45 kts. Waves 6 to 10 ft. A chance of light snow in the morning. .FRIDAY NIGHT...NW wind 15 to 25 kts decreasing to 10 to 15 kts in the late evening and overnight. Waves 2 to 4 ft subsiding to 2 ft or less after midnight. Partly cloudy. $$ See Lake Michigan Open Lake Forecast for Saturday through Monday. Wave height forecast is for ice free areas.