FZUS53 KGRB 191106
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
606 AM CDT Tue May 19 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-191600-
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-
606 AM CDT Tue May 19 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CDT TODAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THIS EVENING...

.TODAY...SW wind 15 to 25 kts decreasing to 10 to 15 kts mid-day,
then veering W early in the afternoon. Waves 2 to 4 ft. Patchy
dense fog in the morning. a slight chance of showers in the
morning. 
.TONIGHT...NW wind 10 to 15 kts. Waves 2 ft or less. A chance of
sprinkles in the evening. 
.WEDNESDAY...N wind 5 to 10 kts veering E early in the afternoon.
Waves 2 ft or less. Mostly sunny. 
.WEDNESDAY NIGHT...E wind 5 to 10 kts backing NE after midnight.
Waves 2 ft or less. Partly cloudy in the evening then becoming
mostly cloudy.  

$$

LMZ541-191600-
Rock Island Passage to Sturgeon Bay WI-
606 AM CDT Tue May 19 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CDT TODAY...
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...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. A chance
of showers in the morning. patchy dense fog. 
.TONIGHT...NW wind 10 to 15 kts. Waves 2 to 4 ft subsiding to
1 to 3 ft after midnight. A chance of sprinkles in the evening. 
.WEDNESDAY...N wind 10 to 15 kts veering E 5 to 10 kts early in
the afternoon. Waves 2 ft or less. Mostly sunny. 
.WEDNESDAY NIGHT...E wind 5 to 10 kts backing NE in the late
evening and overnight. Waves 2 ft or less. Partly cloudy.  

$$

LMZ542-543-191600-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
606 AM CDT Tue May 19 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CDT TODAY...
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...SW wind 15 to 25 kts veering W early in the afternoon.
Waves 4 to 7 ft. Patchy dense fog in the morning. a chance of
showers in the morning. 
.TONIGHT...NW wind 10 to 15 kts. Waves 1 to 3 ft. A chance of
sprinkles in the evening. 
.WEDNESDAY...N wind 10 to 15 kts veering NE in the late morning
and afternoon. Waves 2 ft or less. Mostly sunny. 
.WEDNESDAY NIGHT...NE wind 5 to 10 kts. Waves 2 ft or less.
Partly cloudy.  

$$

See Lake Michigan Open Lake Forecast for Thursday through Saturday.

Wave height forecast is for ice free areas.