FZUS53 KGRB 131212 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 712 AM CDT Fri Mar 13 2026 For waters within five nautical miles of shore on Lake Michigan LMZ541-131600- Rock Island Passage to Sturgeon Bay WI- 712 AM CDT Fri Mar 13 2026 ...GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING... .TODAY...SE wind to 30 kts backing N gales to 35 kts mid-day, then decreasing to to 30 kts early in the afternoon. Gusts to 40 kts. Waves 12 to 16 ft subsiding to 6 to 10 ft in the afternoon. A chance of light snow in the morning. A chance of light rain. Light snow likely in the afternoon. .TONIGHT...NW wind 15 to 25 kts with gale force gusts to around 35 kts decreasing to 10 to 15 kts after midnight. Waves 4 to 7 ft subsiding to 1 to 3 ft after midnight. A slight chance of light snow in the evening. A Small Craft Advisory may be needed. .SATURDAY...NW wind 5 to 10 kts backing S mid-day, then backing SE early in the afternoon. Waves 2 ft or less. Partly sunny. .SATURDAY NIGHT...E wind 10 to 15 kts increasing to 15 to 25 kts after midnight. Waves 2 ft or less building to 4 to 7 ft after midnight. A chance of light snow in the evening, then snow likely after midnight. A Small Craft Advisory may be needed. $$ LMZ542-543-131600- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 712 AM CDT Fri Mar 13 2026 ...GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING... .TODAY...W wind to 30 kts veering NW gales to 35 kts mid-day, then decreasing to to 30 kts early in the afternoon. Gusts to 45 kts. Waves 10 to 14 ft subsiding to 4 to 7 ft in the afternoon. A chance of light rain and light snow. .TONIGHT...NW wind 15 to 25 kts decreasing to 10 to 15 kts in the late evening and overnight. Waves 3 to 5 ft subsiding to 1 to 3 ft after midnight. Mostly clear. .SATURDAY...N wind 5 to 10 kts veering SE in the late morning and afternoon. Waves 2 ft or less. Mostly cloudy. .SATURDAY NIGHT...E wind 10 to 15 kts increasing to to 30 kts with gale force gusts to around 35 kts in the late evening and overnight. Waves 6 to 10 ft. A chance of light snow in the evening, then snow after midnight. A Small Craft Advisory may be needed. $$ See Lake Michigan Open Lake Forecast for Sunday through Tuesday. Wave height forecast is for ice free areas.