Nearshore Marine Forecast
Issued by NWS Green Bay, WI

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FZUS53 KGRB 052121
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
321 PM CST Fri Dec 5 2025

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

LMZ521-522-060200-
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 Fri Dec 5 2025

.REST OF THIS AFTERNOON...SW wind 10 to 15 kts. Light snow
likely. Waves 1 to 3 ft.
.TONIGHT...W wind 10 to 20 kts. A chance of light snow, freezing
rain and a slight chance of light freezing drizzle in the
evening. Waves 1 to 3 ft.
.SATURDAY...NW wind 10 to 15 kts. Partly sunny. Waves 2 ft or
less.
.SATURDAY NIGHT...N wind around 5 kts increasing to 10 to 15 kts
after midnight. A chance of light snow. Waves 2 ft or less.
.SUNDAY...N wind 10 to 20 kts. Partly cloudy. Waves 1 to 3 ft.

$$

LMZ541-060200-
Rock Island Passage to Sturgeon Bay WI-
321 PM CST Fri Dec 5 2025

.REST OF THIS AFTERNOON...SW wind 10 to 20 kts. Light snow. Waves
2 to 4 ft.
.TONIGHT...W wind 10 to 20 kts. Light snow with possible freezing
rain and freezing drizzle in the evening, then a chance of
flurries after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft
early in the morning.
.SATURDAY...NW wind 10 to 20 kts. Mostly cloudy. Waves 1 to 3 ft.
.SATURDAY NIGHT...N wind 5 to 10 kts. A chance of light snow
after midnight. Waves 2 ft or less.
.SUNDAY...N wind 10 to 20 kts. Partly sunny. Waves 2 ft or less.

$$

LMZ542-543-060200-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
321 PM CST Fri Dec 5 2025

.REST OF THIS AFTERNOON...SW wind 10 to 20 kts. A chance of light
snow. Waves 1 to 3 ft.
.TONIGHT...SW wind 10 to 20 kts veering W after midnight. Light
snow likely and a slight chance of light freezing drizzle in the
evening. Waves 1 to 3 ft.
.SATURDAY...NW wind 10 to 20 kts decreasing to 5 to 10 kts in the
afternoon. Partly sunny. Waves 2 ft or less.
.SATURDAY NIGHT...N wind 10 to 15 kts. Snow likely after
midnight. Waves 2 ft or less.
.SUNDAY...N wind 10 to 20 kts. A chance of light snow in the
morning. Waves 1 to 3 ft.

$$

See Lake Michigan Open Lake Forecast for Monday through Wednesday.