FZUS53 KGRB 031421
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
920 AM CDT Sun May 3 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-032200-
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-
920 AM CDT Sun May 3 2026

.THIS AFTERNOON...SW wind 10 to 15 kts. Waves 2 ft or less. A
chance of sprinkles early in the morning, then a chance of
showers and a slight chance of thunderstorms in the afternoon.
.TONIGHT...NW wind 5 to 10 kts backing SW 10 to 15 kts in the
late evening and overnight. Waves 2 ft or less. Mostly clear.
.MONDAY...SW wind 15 to 25 kts veering W 10 to 15 kts early in
the afternoon. Waves 1 to 3 ft. A chance of showers in the
afternoon. A Small Craft Advisory may be needed.
.MONDAY NIGHT...NW wind 10 to 15 kts. Waves 2 ft or less. Mostly
cloudy in the evening then becoming partly cloudy.

$$

LMZ541-032200-
Rock Island Passage to Sturgeon Bay WI-
920 AM CDT Sun May 3 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM CDT THIS AFTERNOON
THROUGH LATE TONIGHT...

.THIS AFTERNOON...SW wind 10 to 20 kts. Waves 2 to 4 ft building
to 3 to 5 ft in the afternoon. A chance of sprinkles early in the
morning, then a chance of showers and a slight chance of
thunderstorms in the afternoon.
.TONIGHT...SW wind 10 to 15 kts. Waves 3 to 5 ft. Mostly clear.
.MONDAY...SW wind 15 to 25 kts. Waves 4 to 7 ft. A chance of
showers in the afternoon. A Small Craft Advisory may be needed.
.MONDAY NIGHT...NW wind 10 to 15 kts. Waves 3 to 5 ft subsiding
to 2 to 4 ft after midnight. Mostly cloudy. A Small Craft
Advisory may be needed.

$$

LMZ542-543-032200-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
920 AM CDT Sun May 3 2026

.THIS AFTERNOON...SW wind 15 to 25 kts. Waves 1 to 3 ft building
to 3 to 5 ft in the afternoon. A chance of sprinkles. A slight
chance of thunderstorms in the afternoon.
.TONIGHT...W wind 5 to 10 kts backing SW 10 to 15 kts after
midnight. Waves 2 to 4 ft. Mostly clear.
.MONDAY...SW wind 15 to 25 kts. Waves 3 to 5 ft. A chance of
showers in the afternoon. A Small Craft Advisory may be needed.
.MONDAY NIGHT...W wind 10 to 15 kts veering NW in the late
evening and overnight. Waves 2 to 4 ft subsiding to 1 to 3 ft
after midnight. A chance of showers in the evening.

$$

See Lake Michigan Open Lake Forecast for Tuesday through Thursday.

Wave height forecast is for ice free areas.