Nearshore Marine Forecast
Issued by NWS Green Bay, WI

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FZUS53 KGRB 162150
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
449 PM CDT Wed Jul 16 2025

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

LMZ521-522-170100-
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-
449 PM CDT Wed Jul 16 2025

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

...SMALL CRAFT SHOULD EXERCISE CAUTION THROUGH THIS EVENING...

.REST OF THIS AFTERNOON...N wind 10 to 20 kts with a few gusts to
around 25 kts. Scattered light showers and isolated
thunderstorms. Waves 1 to 3 ft.
.TONIGHT...N wind 10 to 20 kts with gusts to around 25 kts. Rain
showers likely and a chance of thunderstorms in the evening, then
a chance of rain showers after midnight. Waves 3 to 5 ft.
.THURSDAY...N wind 10 to 20 kts with gusts to around 25 kts.
Partly cloudy. Waves 3 to 5 ft subsiding to 1 to 3 ft.
.THURSDAY NIGHT...NE wind 5 to 10 kts. Clear. Waves 1 to 3 ft.
.FRIDAY...S wind 5 to 10 kts. Sunny in the morning then becoming
partly cloudy. Waves 2 ft or less.

$$

LMZ541-170100-
Rock Island Passage to Sturgeon Bay WI-
449 PM CDT Wed Jul 16 2025

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

.REST OF THIS AFTERNOON...N wind 10 to 20 kts. Scattered light
showers and isolated thunderstorms. Waves 1 to 3 ft.
.TONIGHT...N wind 15 to 25 kts with gusts to around 30 kts. Rain
showers likely in the evening. A chance of thunderstorms. A
chance of rain showers after midnight. Waves 3 to 5 ft.
.THURSDAY...N wind 15 to 25 kts. Partly sunny in the morning then
clearing. Waves 3 to 5 ft subsiding to 1 to 3 ft in the
afternoon.
.THURSDAY NIGHT...NE wind 5 to 10 kts. 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.

$$

LMZ542-543-170100-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
449 PM CDT Wed Jul 16 2025

...TORNADO WATCH 517 IN EFFECT UNTIL 7 PM CDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF THIS AFTERNOON...NE wind 10 to 20 kts. Areas of fog.
Numerous showers and scattered thunderstorms. Waves 2 to 4 ft.
.TONIGHT...N wind 10 to 20 kts with gusts to around 25 kts. Rain
showers and a chance of thunderstorms in the evening, then a
chance of rain showers after midnight. Waves 3 to 5 ft subsiding
to 2 to 4 ft early in the morning.
.THURSDAY...N wind 10 to 20 kts with gusts to around 25 kts.
Mostly cloudy in the morning then clearing. Waves 2 to 4 ft.
.THURSDAY NIGHT...NE wind 10 to 15 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.

$$

See Lake Michigan Open Lake Forecast for Saturday through Monday.