Nearshore Marine Forecast
Issued by NWS Green Bay, WI

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004
FZUS53 KGRB 170926
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
426 AM CDT Thu Jul 17 2025

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

LMZ521-522-171300-
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-
426 AM CDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...

.EARLY IN THE MORNING...N wind 10 to 20 kts with gusts to around
25 kts. A slight chance of rain showers. Waves 3 to 5 ft.
.TODAY...N wind 10 to 20 kts with gusts to around 25 kts veering
NE 10 to 15 kts in the afternoon. Partly cloudy. Waves 3 to 5 ft
subsiding to 1 to 3 ft in the afternoon.
.TONIGHT...E wind around 5 kts veering S after midnight. Clear.
Waves 2 ft or less.
.FRIDAY...S wind 5 to 10 kts. Sunny in the morning then becoming
partly cloudy. Waves 2 ft or less.
.FRIDAY NIGHT...S wind 5 to 10 kts. A chance of light showers in
the evening. A chance of thunderstorms. Light showers likely
after midnight. Waves 2 ft or less.

$$

LMZ541-171300-
Rock Island Passage to Sturgeon Bay WI-
426 AM CDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...

.EARLY IN THE MORNING...N wind 15 to 25 kts. A slight chance of
rain showers. Waves 3 to 5 ft.
.TODAY...N wind 10 to 20 kts with gusts to around 25 kts. Mostly
cloudy in the morning then clearing. Waves 3 to 5 ft subsiding to
1 to 3 ft.
.TONIGHT...NE wind around 5 kts veering E after midnight. Clear.
Waves 2 ft or less.
.FRIDAY...S wind 5 to 10 kts. Sunny in the morning then becoming
partly sunny. Waves 2 ft or less.
.FRIDAY NIGHT...S wind 5 to 10 kts. A chance of light showers in
the evening. A chance of thunderstorms. Showers likely after
midnight. Waves 2 ft or less.

$$

LMZ542-543-171300-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
426 AM CDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...

.EARLY IN THE MORNING...NW wind 10 to 20 kts with gusts to around
25 kts. A slight chance of rain showers. Waves 2 to 4 ft.
.TODAY...N wind 10 to 20 kts with gusts to around 25 kts. Mostly
cloudy in the morning then clearing. Waves 2 to 4 ft.
.TONIGHT...NE wind 5 to 10 kts. Clear. Waves 1 to 3 ft.
.FRIDAY...SE wind 5 to 10 kts. Sunny in the morning then becoming
partly cloudy. Waves 2 ft or less.
.FRIDAY NIGHT...S wind 5 to 10 kts. A chance of light showers in
the evening. Light showers likely after midnight. Waves 2 ft or
less.

$$

See Lake Michigan Open Lake Forecast for Saturday through Monday.