Nearshore Marine Forecast
Issued by NWS Green Bay, WI

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FZUS53 KGRB 091643
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
1143 AM CDT Thu Oct 9 2025

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

LMZ521-522-100200-
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-
1143 AM CDT Thu Oct 9 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM CDT THIS EVENING
THROUGH SATURDAY MORNING...

.THIS AFTERNOON...S wind 10 to 15 kts. Mostly sunny. Waves 2 ft
or less.
.TONIGHT...S wind 10 to 20 kts with gusts to around 25 kts. A
chance of rain showers and a slight chance of thunderstorms after
midnight. Waves 1 to 3 ft building to 2 to 4 ft after midnight.
.FRIDAY...SW wind 10 to 20 kts veering W in the afternoon. Gusts
to around 25 kts. A chance of rain showers. Waves 2 to 4 ft
subsiding to 1 to 3 ft in the afternoon.
.FRIDAY NIGHT...NW wind 10 to 20 kts with gusts to around 25 kts.
A chance of rain showers. Waves 1 to 3 ft.

$$

LMZ541-100200-
Rock Island Passage to Sturgeon Bay WI-
1143 AM CDT Thu Oct 9 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM CDT THIS EVENING
THROUGH SATURDAY MORNING...

.THIS AFTERNOON...S wind 10 to 20 kts. Mostly sunny. Waves 1 to
3 ft.
.TONIGHT...SW wind 10 to 20 kts with gusts to around 25 kts. A
chance of rain showers and a slight chance of thunderstorms after
midnight. Waves 1 to 3 ft building to 3 to 5 ft.
.FRIDAY...SW wind 15 to 25 kts veering W 10 to 20 kts in the
afternoon. Gusts to around 30 kts. Light rain showers likely in
the morning. Waves 4 to 7 ft subsiding to 3 to 5 ft late in the
afternoon.
.FRIDAY NIGHT...NW wind 10 to 20 kts veering N after midnight.
Gusts to around 25 kts. A chance of rain showers. Waves 3 to 5 ft
subsiding to 1 to 3 ft after midnight.

$$

LMZ542-543-100200-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1143 AM CDT Thu Oct 9 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM CDT THIS EVENING
THROUGH SATURDAY MORNING...

.THIS AFTERNOON...S wind 10 to 20 kts. Mostly sunny. Waves 1 to
3 ft.
.TONIGHT...S wind 10 to 20 kts with gusts to around 25 kts. A
chance of rain showers and a slight chance of thunderstorms after
midnight. Waves 2 to 4 ft building to 3 to 5 ft in the late
evening and overnight.
.FRIDAY...SW wind 15 to 25 kts veering W 10 to 20 kts in the
afternoon. A chance of rain showers. Waves 3 to 5 ft.
.FRIDAY NIGHT...NW wind 10 to 20 kts with gusts to around 25 kts.
A chance of rain showers. Waves 2 to 4 ft subsiding to 1 to 3 ft
in the late evening and overnight.

$$

See Lake Michigan Open Lake Forecast for Saturday through Monday.