FZUS53 KGRB 161341 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 841 AM CDT Thu Apr 16 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-161600- 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- 841 AM CDT Thu Apr 16 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...NE wind 5 to 10 kts veering SE early in the afternoon. Waves 2 ft or less. Areas of dense fog. .TONIGHT...S wind 5 to 10 kts. Waves 2 ft or less. Areas of dense fog in the evening, then widespread dense fog after midnight. .FRIDAY...S wind 10 to 15 kts increasing to 15 to 25 kts early in the afternoon. Waves 1 to 3 ft. Patchy dense fog in the morning. . A Small Craft Advisory may be needed. .FRIDAY NIGHT...S wind 15 to 25 kts veering W 10 to 20 kts after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. A chance of thunderstorms in the evening. Rain showers. $$ LMZ541-161600- Rock Island Passage to Sturgeon Bay WI- 841 AM CDT Thu Apr 16 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...N wind 5 to 10 kts veering SE early in the afternoon. Waves 2 ft or less. Areas of dense fog. .TONIGHT...S wind 5 to 10 kts. Waves 2 ft or less. Widespread dense fog. .FRIDAY...S wind 15 to 25 kts. Waves 1 to 3 ft building to 3 to 5 ft in the afternoon. Widespread dense fog in the morning. A Small Craft Advisory may be needed. .FRIDAY NIGHT...S wind 15 to 25 kts veering SW after midnight. Waves 5 to 8 ft. A chance of thunderstorms in the evening. Rain showers. $$ LMZ542-543-161600- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 841 AM CDT Thu Apr 16 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...N wind 5 to 10 kts veering E early in the afternoon. Waves 2 ft or less. A chance of showers and a slight chance of thunderstorms in the morning. areas of dense fog. .TONIGHT...S wind 5 to 10 kts. Waves 2 ft or less. Widespread dense fog. .FRIDAY...S wind 10 to 15 kts increasing to to 30 kts in the late morning and afternoon. Waves 2 to 4 ft building to 4 to 7 ft in the afternoon. Widespread dense fog in the morning. . A Small Craft Advisory may be needed. .FRIDAY NIGHT...S wind to 30 kts veering W 15 to 25 kts after midnight. Waves 5 to 8 ft. A chance of thunderstorms in the evening. Rain showers. $$ See Lake Michigan Open Lake Forecast for Saturday through Monday. Wave height forecast is for ice free areas.