Nearshore Marine Forecast
Issued by NWS Green Bay, WI

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FZUS53 KGRB 100451
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
1051 PM CST Tue Dec 9 2025

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

LMZ521-522-101100-
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-
1051 PM CST Tue Dec 9 2025

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

.REST OF THE NIGHT...E wind 5 to 10 kts becoming NE 15 to 25 kts
with gusts to around 30 kts after midnight. Light snow. Waves
1 to 3 ft building to 3 to 5 ft toward daybreak.
.WEDNESDAY...N wind 15 to 25 kts with gusts to around 30 kts. A
slight chance of light snow in the morning. Waves 4 to 7 ft
subsiding to 3 to 5 ft in the afternoon.
.WEDNESDAY NIGHT...NW wind 15 to 25 kts with gusts to around
30 kts. Partly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft
after midnight.
.THURSDAY...W wind 10 to 15 kts. Partly sunny. Waves 2 ft or
less.

$$

LMZ541-101100-
Rock Island Passage to Sturgeon Bay WI-
1051 PM CST Tue Dec 9 2025

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

.REST OF THE NIGHT...E wind 10 to 15 kts backing NE 15 to 25 kts
with gusts to around 30 kts after midnight. A chance of light
snow. Waves 1 to 3 ft building to 3 to 5 ft.
.WEDNESDAY...N wind 15 to 25 kts with gusts to around 30 kts. A
slight chance of light snow in the morning. Waves 4 to 7 ft
subsiding to 3 to 5 ft in the afternoon.
.WEDNESDAY NIGHT...NW wind 15 to 25 kts with gusts to around
30 kts. Partly cloudy in the evening then becoming mostly cloudy.
Waves 2 to 4 ft subsiding to 1 to 3 ft in the late evening and
overnight.
.THURSDAY...NW wind 10 to 20 kts backing W 5 to 10 kts in the
afternoon. Partly sunny. Waves 2 ft or less.

$$

LMZ542-543-101100-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1051 PM CST Tue Dec 9 2025

...GALE WARNING IN EFFECT THROUGH WEDNESDAY MORNING...

.REST OF THE NIGHT...SE wind 10 to 15 kts backing NE 15 to 25 kts
with gusts to around 35 kts after midnight. Snow and a slight
chance of rain. Waves 1 to 3 ft building to 4 to 7 ft.
.WEDNESDAY...N wind to around 30 kts with gusts to around 35 kts.
A slight chance of light snow in the morning. Waves 5 to 8 ft
subsiding to 3 to 5 ft.
.WEDNESDAY NIGHT...NW wind 15 to 25 kts. Mostly clear. Waves 2 to
4 ft subsiding to 1 to 3 ft in the late evening and overnight. A
Small Craft Advisory may be needed.
.THURSDAY...NW wind 10 to 20 kts backing W 5 to 10 kts in the
afternoon. Partly cloudy. Waves 2 ft or less.

$$

See Lake Michigan Open Lake Forecast for Friday through Sunday.