FZUS53 KGRB 130251 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 951 PM CDT Tue May 12 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-131000- 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- 951 PM CDT Tue May 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING... .REST OF TONIGHT...NW wind 10 to 15 kts increasing to 15 to 25 kts in the late evening and overnight. Waves 1 to 3 ft building to 2 to 4 ft after midnight. A chance of showers early 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. Mostly cloudy. .WEDNESDAY NIGHT...N wind 5 to 10 kts. Waves 1 to 3 ft. Clear. .THURSDAY...N wind around 5 kts veering SE in the late morning and afternoon. Waves 2 ft or less. Mostly sunny. $$ LMZ541-131000- Rock Island Passage to Sturgeon Bay WI- 951 PM CDT Tue May 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING... .REST OF TONIGHT...NW wind 10 to 15 kts increasing to 15 to 25 kts in the late evening and overnight. Waves 4 to 7 ft subsiding to 3 to 5 ft after midnight. A chance of showers and a slight chance of thunderstorms early in the evening. .WEDNESDAY...NW wind 15 to 25 kts veering N 10 to 15 kts early in the afternoon. Waves 2 to 4 ft. Mostly cloudy. .WEDNESDAY NIGHT...N wind 10 to 15 kts. Waves 2 ft or less. Clear. .THURSDAY...N wind 5 to 10 kts veering SE mid-day, then veering S early in the afternoon. Waves 2 ft or less. Mostly sunny. $$ LMZ542-543-131000- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 951 PM CDT Tue May 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING... .REST OF TONIGHT...W wind 10 to 15 kts veering NW 15 to 25 kts in the late evening and overnight. Waves 4 to 7 ft subsiding 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. Waves 1 to 3 ft. Mostly cloudy. .WEDNESDAY NIGHT...NW wind 5 to 10 kts. Waves 2 ft or less. Clear. .THURSDAY...N wind 5 to 10 kts veering SE early in the afternoon. Waves 2 ft or less. Mostly sunny. $$ See Lake Michigan Open Lake Forecast for Friday through Sunday. Wave height forecast is for ice free areas.