FZUS53 KGRB 190056 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 756 PM CDT Mon May 18 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-190400- 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- 756 PM CDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING... .TONIGHT...S wind 10 to 15 kts. Waves 2 ft or less. Patchy fog. a chance of showers and a slight chance of thunderstorms. .TUESDAY...SW wind 10 to 20 kts veering W 10 to 15 kts early in the afternoon. Waves 1 to 3 ft. Patchy fog in the morning. a chance of showers in the morning. .TUESDAY NIGHT...NW wind 10 to 15 kts. Waves 2 ft or less. Mostly cloudy in the evening then becoming partly cloudy. .WEDNESDAY...N wind 10 to 15 kts veering E 5 to 10 kts early in the afternoon. Waves 2 ft or less. Mostly sunny. $$ LMZ541-190400- Rock Island Passage to Sturgeon Bay WI- 756 PM CDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT TUESDAY THROUGH TUESDAY EVENING... .TONIGHT...S wind 10 to 15 kts increasing to 15 to 25 kts after midnight. Waves 2 to 4 ft building to 4 to 7 ft after midnight. Patchy fog. a chance of showers and thunderstorms. .TUESDAY...S wind 15 to 25 kts veering SW 10 to 15 kts mid-day, then veering NW early in the afternoon. Waves 4 to 7 ft. Patchy fog in the morning. a chance of showers in the morning. .TUESDAY NIGHT...NW wind 10 to 15 kts. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Mostly cloudy in the evening then becoming partly cloudy. .WEDNESDAY...N wind 10 to 15 kts veering E 5 to 10 kts early in the afternoon. Waves 2 ft or less. Mostly sunny. $$ LMZ542-543-190400- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 756 PM CDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT TUESDAY THROUGH TUESDAY EVENING... .TONIGHT...S wind 15 to 25 kts. Waves 2 to 4 ft building to 3 to 5 ft after midnight. Patchy fog. a chance of showers and a slight chance of thunderstorms. .TUESDAY...SW wind 15 to 25 kts veering W early in the afternoon. Waves 4 to 7 ft. Patchy fog in the morning. a chance of showers in the morning. .TUESDAY NIGHT...NW wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy. .WEDNESDAY...N wind 10 to 15 kts veering NE in the late morning and afternoon. Waves 2 ft or less. Mostly sunny. $$ See Lake Michigan Open Lake Forecast for Thursday through Saturday. Wave height forecast is for ice free areas.