FZUS53 KGRB 120624 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 124 AM CDT Tue May 12 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-121000- 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- 124 AM CDT Tue May 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT THIS MORNING THROUGH WEDNESDAY AFTERNOON... .REST OF THE NIGHT...S wind 5 to 10 kts. Waves 2 ft or less. A chance of showers and a slight chance of thunderstorms. .TUESDAY...S wind 15 to 25 kts with gale force gusts to around 35 kts. Waves 3 to 5 ft. A chance of showers and a slight chance of thunderstorms. .TUESDAY NIGHT...W wind 10 to 15 kts veering NW 15 to 25 kts with gale force gusts to around 35 kts in the late evening and overnight. Waves 2 ft or less building to 2 to 4 ft after midnight. Mostly cloudy. .WEDNESDAY...NW wind 15 to 25 kts veering N 10 to 15 kts early in the afternoon. Gusts to 35 kts. Waves 2 to 4 ft. Mostly cloudy in the morning then becoming partly cloudy. $$ LMZ541-121000- Rock Island Passage to Sturgeon Bay WI- 124 AM CDT Tue May 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT THIS MORNING THROUGH WEDNESDAY AFTERNOON... .REST OF THE NIGHT...S wind 10 to 15 kts. Waves 2 ft or less. Mostly cloudy. .TUESDAY...S wind 10 to 20 kts increasing to to 30 kts in the late morning and afternoon. Gusts to 35 kts. Waves 5 to 8 ft building to 6 to 10 ft in the afternoon. A chance of showers and a slight chance of thunderstorms. .TUESDAY NIGHT...W wind 10 to 15 kts veering NW 15 to 25 kts with gale force gusts to around 35 kts in the late evening and overnight. Waves 6 to 10 ft. A chance of showers in the evening. .WEDNESDAY...NW wind 15 to 25 kts with gale force gusts to around 35 kts. Waves 3 to 5 ft subsiding to 2 to 4 ft in the afternoon. Mostly cloudy in the morning then clearing. $$ LMZ542-543-121000- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 124 AM CDT Tue May 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT THIS MORNING THROUGH WEDNESDAY AFTERNOON... .REST OF THE NIGHT...S wind 5 to 10 kts. Waves 2 ft or less. A chance of showers and a slight chance of thunderstorms. .TUESDAY...S wind to 30 kts with gale force gusts to around 35 kts. Waves 6 to 10 ft building to 8 to 12 ft in the afternoon. A chance of showers and a slight chance of thunderstorms. .TUESDAY NIGHT...W wind 10 to 15 kts veering NW 15 to 25 kts in the late evening and overnight. Waves 5 to 8 ft. A chance of showers in the evening. .WEDNESDAY...NW wind 15 to 25 kts veering N 10 to 15 kts early in the afternoon. Waves 2 to 4 ft. Partly cloudy. $$ See Lake Michigan Open Lake Forecast for Thursday through Saturday. Wave height forecast is for ice free areas.