FZUS53 KGRB 190849 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 249 AM CST Thu Feb 19 2026 For waters within five nautical miles of shore on Lake Michigan LMZ541-191100- Rock Island Passage to Sturgeon Bay WI- 249 AM CST Thu Feb 19 2026 .REST OF THE NIGHT...S wind 5 to 10 kts. Waves 2 to 4 ft. Mostly cloudy. .THURSDAY...S wind 5 to 10 kts backing E early in the afternoon. Waves 1 to 3 ft. Partly sunny. .THURSDAY NIGHT...NE wind 10 to 15 kts increasing to 15 to 25 kts after midnight. Waves 1 to 3 ft building to 3 to 5 ft after midnight. A chance of light rain in the evening, then rain after midnight. A Small Craft Advisory may be needed. .FRIDAY...NE wind 15 to 25 kts backing N 10 to 15 kts in the late morning and afternoon. Waves 4 to 7 ft. Rain and light snow in the morning, then a chance of light snow and light rain in the afternoon. $$ LMZ542-543-191100- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 249 AM CST Thu Feb 19 2026 .REST OF THE NIGHT...S wind 5 to 10 kts. Waves 2 ft or less. Mostly clear. .THURSDAY...SW wind 5 to 10 kts backing E early in the afternoon. Waves 2 ft or less. Partly cloudy. .THURSDAY NIGHT...NE wind 10 to 20 kts. Waves 2 to 4 ft building to 3 to 5 ft after midnight. A chance of light rain in the evening, then rain after midnight. A Small Craft Advisory may be needed. .FRIDAY...N wind 15 to 25 kts backing NW early in the afternoon. Waves 3 to 5 ft. Light snow and light rain in the morning, then a chance of light rain and light snow in the afternoon. $$ See Lake Michigan Open Lake Forecast for Saturday through Monday. Wave height forecast is for ice free areas.