FZUS53 KGRB 212247
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
546 PM CDT Wed May 21 2025

For waters within five nautical miles of the shore on Lake Michigan

LMZ521-522-220800-
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-
546 PM CDT Wed May 21 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.TONIGHT...N wind 10 to 20 kts. Mostly cloudy. Waves 1 to 3 ft.
.THURSDAY...N wind 10 to 20 kts with gusts to around 25 kts.
Partly cloudy. Waves 1 to 3 ft. A Small Craft Advisory may be
needed.
.THURSDAY NIGHT...NW wind 10 to 20 kts. Partly cloudy in the
evening then becoming mostly cloudy. Waves 1 to 3 ft.
.FRIDAY...NW wind 10 to 20 kts veering N 5 to 10 kts in the
afternoon. Partly sunny. Waves 2 ft or less.

$$

LMZ541-220800-
Rock Island Passage to Sturgeon Bay WI-
546 PM CDT Wed May 21 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.TONIGHT...N wind 10 to 20 kts with a few gusts to around 25 kts.
Mostly cloudy. Waves 1 to 3 ft.
.THURSDAY...N wind 15 to 25 kts. Partly cloudy in the morning
then becoming mostly sunny. Waves 1 to 3 ft. A Small Craft
Advisory may be needed.
.THURSDAY NIGHT...NW wind 10 to 20 kts. Partly cloudy in the
evening then becoming mostly cloudy. Waves 1 to 3 ft.
.FRIDAY...NW wind 10 to 15 kts. Partly cloudy. Waves 2 ft or
less.

$$

LMZ542-543-220800-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
546 PM CDT Wed May 21 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.TONIGHT...N wind 5 to 10 kts increasing to 10 to 20 kts after
midnight. A chance of rain showers in the evening. Waves 2 to
4 ft subsiding to 1 to 3 ft in the late evening and overnight.
.THURSDAY...N wind 15 to 25 kts. Partly sunny. Waves 2 to 4 ft
subsiding to 1 to 3 ft late in the afternoon. A Small Craft
Advisory may be needed.
.THURSDAY NIGHT...N wind 5 to 10 kts backing NW 10 to 20 kts
after midnight. Partly cloudy. Waves 1 to 3 ft.
.FRIDAY...NW wind 10 to 20 kts veering N 5 to 10 kts in the
afternoon. Partly cloudy. Waves 2 ft or less.

$$

See Lake Michigan Open Lake Forecast for Saturday through Monday.