Nearshore Marine Forecast
Issued by NWS Green Bay, WI

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921
FZUS53 KGRB 090626
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
1226 AM CST Tue Dec 9 2025

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

LMZ521-522-091400-
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-
1226 AM CST Tue Dec 9 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...

.OVERNIGHT...SW wind 15 to 25 kts with gusts to around 30 kts. A
chance of snow. Waves 3 to 5 ft.
.TODAY...W wind 10 to 20 kts. A chance of light snow in the
morning. Waves 2 to 4 ft subsiding to 1 to 3 ft in the late
morning and afternoon. A Small Craft Advisory may be needed.
.TONIGHT...S wind 5 to 10 kts becoming NE 15 to 25 kts with gusts
to around 30 kts after midnight. A chance of snow in the evening,
then snow after midnight. Waves 1 to 3 ft building to 4 to 7 ft
early in the morning.
.WEDNESDAY...N wind 15 to 25 kts with gusts to around 35 kts. A
chance of light snow in the morning. Waves 4 to 7 ft subsiding to
3 to 5 ft. A Gale Warning may be needed.

$$

LMZ541-091400-
Rock Island Passage to Sturgeon Bay WI-
1226 AM CST Tue Dec 9 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.OVERNIGHT...SW wind 15 to 25 kts with gusts to around 30 kts.
Snow. Waves 6 to 10 ft.
.TODAY...W wind 10 to 20 kts. Gusts to around 25 kts. A chance of
light snow in the morning. Waves 5 to 8 ft subsiding to 2 to
4 ft.
.TONIGHT...S wind 5 to 10 kts becoming E 15 to 25 kts with gusts
to around 30 kts after midnight. A chance of snow in the evening,
then snow after midnight. Waves 1 to 3 ft building to 4 to 7 ft.
.WEDNESDAY...N wind 15 to 25 kts with gusts to around 30 kts. A
chance of light snow. Waves 4 to 7 ft subsiding to 2 to 4 ft.

$$

LMZ542-543-091400-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1226 AM CST Tue Dec 9 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.OVERNIGHT...SW wind 15 to 25 kts with gusts to around 30 kts.
Snow. Waves 5 to 8 ft.
.TODAY...W wind 10 to 20 kts with gusts to around 25 kts. A
slight chance of light freezing drizzle in the morning. A chance
of light snow. Waves 4 to 7 ft subsiding to 1 to 3 ft.
.TONIGHT...S wind 10 to 20 kts backing N 15 to 25 kts with gusts
to around 30 kts after midnight. Snow. Waves 1 to 3 ft building
to 4 to 7 ft in the late evening and overnight.
.WEDNESDAY...N wind to around 30 kts with gusts to around 35 kts.
Light snow likely in the morning. Waves 4 to 7 ft subsiding to
3 to 5 ft. A Gale Warning may be needed.

$$

See Lake Michigan Open Lake Forecast for Thursday through Saturday.