FZUS53 KGRB 240349 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 1049 PM CDT Thu Apr 23 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-241000- 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- 1049 PM CDT Thu Apr 23 2026 .REST OF TONIGHT...SE wind 10 to 15 kts. Waves 2 ft or less. Areas of dense fog late in the evening. a chance of showers late in the evening. A chance of thunderstorms. Rain showers likely after midnight. .FRIDAY...S wind 10 to 15 kts backing N early in the afternoon. Waves 2 ft or less. Patchy fog. a chance of showers and thunderstorms. .FRIDAY NIGHT...N wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy in the evening then becoming mostly cloudy. .SATURDAY...NE wind 5 to 10 kts veering E early in the afternoon. Waves 2 ft or less. Partly cloudy in the morning then clearing. $$ LMZ541-241000- Rock Island Passage to Sturgeon Bay WI- 1049 PM CDT Thu Apr 23 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT FRIDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .REST OF TONIGHT...SE wind 10 to 15 kts. Waves 2 to 4 ft. Areas of dense fog late in the evening. showers likely and a chance of thunderstorms after midnight. .FRIDAY...SE wind 10 to 15 kts backing N early in the afternoon. Waves 2 to 4 ft. Patchy fog. a chance of showers in the morning. A chance of thunderstorms. Rain showers likely in the afternoon. .FRIDAY NIGHT...N wind 10 to 15 kts. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Partly cloudy in the evening then becoming mostly cloudy. .SATURDAY...N wind 5 to 10 kts veering NE early in the afternoon. Waves 2 ft or less. Partly cloudy. $$ LMZ542-543-241000- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 1049 PM CDT Thu Apr 23 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT FRIDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .REST OF TONIGHT...S wind 10 to 20 kts. Waves 2 to 4 ft. Areas of dense fog late in the evening. a slight chance of showers late in the evening. A chance of thunderstorms. Rain showers likely after midnight. .FRIDAY...S wind 10 to 15 kts veering NW early in the afternoon. Waves 3 to 5 ft. Patchy fog. a chance of showers and a slight chance of thunderstorms. .FRIDAY NIGHT...N wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy in the evening then becoming mostly cloudy. .SATURDAY...NE wind 10 to 15 kts. Waves 2 ft or less. Partly cloudy in the morning then becoming mostly sunny. $$ See Lake Michigan Open Lake Forecast for Sunday through Tuesday. Wave height forecast is for ice free areas.