Nearshore Marine Forecast
Issued by NWS Green Bay, WI

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904
FZUS53 KGRB 072121
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
321 PM CST Sun Dec 7 2025

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

LMZ521-522-080200-
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-
321 PM CST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY EVENING THROUGH
LATE MONDAY NIGHT...

.REST OF THIS AFTERNOON...N wind 10 to 15 kts. Mostly sunny.
Waves 1 to 3 ft.
.TONIGHT...NW wind 10 to 15 kts. Partly cloudy. Waves 2 ft or
less.
.MONDAY...W wind 5 to 10 kts backing SW 10 to 20 kts with gusts
to around 25 kts in the afternoon. A chance of flurries in the
afternoon. Waves 1 to 3 ft. A Small Craft Advisory may be needed.
.MONDAY NIGHT...SW wind 15 to 25 kts with gusts to around 30 kts.
A chance of light snow and flurries in the evening, then snow
after midnight. Waves 3 to 5 ft.
.TUESDAY...W wind 10 to 20 kts with gusts to around 25 kts. A
chance of light snow. Waves 2 to 4 ft subsiding to 1 to 3 ft in
the late morning and afternoon.

$$

LMZ541-080200-
Rock Island Passage to Sturgeon Bay WI-
321 PM CST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY EVENING THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N wind 10 to 20 kts. Mostly sunny.
Waves 1 to 3 ft.
.TONIGHT...NW wind 10 to 15 kts. Partly cloudy in the evening
then becoming mostly cloudy. Waves 2 ft or less.
.MONDAY...W wind 5 to 10 kts backing SW 10 to 20 kts with gusts
to around 25 kts in the afternoon. A chance of flurries in the
afternoon. Waves 2 ft or less building to 2 to 4 ft late in the
afternoon. A Small Craft Advisory may be needed.
.MONDAY NIGHT...SW wind 15 to 25 kts with gusts to around 30 kts.
A chance of light snow and flurries in the evening, then snow
after midnight. Waves 4 to 7 ft building to 6 to 10 ft.
.TUESDAY...W wind 10 to 20 kts with gusts to around 25 kts. A
chance of light snow. Waves 5 to 8 ft subsiding to 2 to 4 ft.

$$

LMZ542-543-080200-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
321 PM CST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY EVENING THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N wind 10 to 20 kts. Mostly sunny.
Waves 1 to 3 ft.
.TONIGHT...N wind 10 to 15 kts. Partly cloudy in the evening then
becoming mostly cloudy. Waves 2 ft or less.
.MONDAY...W wind 5 to 10 kts backing SW 10 to 20 kts with gusts
to around 25 kts in the afternoon. A chance of flurries in the
afternoon. Waves 1 to 3 ft building to 2 to 4 ft late in the
afternoon. A Small Craft Advisory may be needed.
.MONDAY NIGHT...SW wind 15 to 25 kts with gusts to around 30 kts.
A chance of light snow and flurries in the evening, then light
snow after midnight. Waves 3 to 5 ft building to 5 to 8 ft.
.TUESDAY...W wind 10 to 20 kts with gusts to around 25 kts. A
chance of light snow. A chance of light rain in the afternoon.
Waves 4 to 7 ft subsiding to 1 to 3 ft.

$$

See Lake Michigan Open Lake Forecast for Wednesday through Friday.