Station List

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National Weather Service Marine Forecast FZUS53 KGRB

FZUS53 KGRB 311438
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
938 AM CDT Mon Mar 31 2025

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

LMZ521-522-312000
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
938 AM CDT Mon Mar 31 2025

SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON

TODAY
NW wind 10 to 20 kts. Gusts to around 25 kts in the morning. Partly cloudy. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon.

TONIGHT
NE wind 5 to 10 kts. Clear. Waves 1 to 3 ft.

TUESDAY
E wind 10 to 15 kts. Partly cloudy. Waves 2 ft or less.

TUESDAY NIGHT
E wind 15 to 25 kts. Gusts to around 25 kts increasing to 35 kts after midnight. A chance of light snow in the evening, then snow after midnight. Waves 1 to 3 ft building to 3 to 5 ft after midnight. A Gale Warning may be needed.

LMZ541-312000
Rock Island Passage to Sturgeon Bay WI
938 AM CDT Mon Mar 31 2025

SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON

TODAY
NW wind 10 to 20 kts with gusts to around 25 kts. Mostly cloudy in the morning then clearing. Waves 2 to 4 ft subsiding to 1 to 3 ft in the afternoon.

TONIGHT
N wind 10 to 15 kts. Clear. Waves 2 ft or less.

TUESDAY
SE wind 5 to 10 kts backing E 10 to 20 kts in the afternoon. Partly cloudy. Waves 2 ft or less.

TUESDAY NIGHT
E wind 15 to 25 kts with gusts to around 35 kts. A chance of light snow in the evening, then light snow likely after midnight. Waves 1 to 3 ft building to 4 to 7 ft. A Gale Warning may be needed.

LMZ542-543-312000
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI
938 AM CDT Mon Mar 31 2025

SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON

TODAY
NW wind 10 to 20 kts. Gusts to around 25 kts in the morning. Partly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft in the afternoon.

TONIGHT
N wind 5 to 10 kts veering NE after midnight. Mostly clear. Waves 2 ft or less.

TUESDAY
SE wind 5 to 10 kts backing E 10 to 20 kts in the afternoon. Mostly sunny in the morning then becoming mostly cloudy. Waves 2 ft or less.

TUESDAY NIGHT
E wind to around 30 kts. Gusts to around 30 kts increasing to 40 kts after midnight. A chance of light snow in the evening, then rain and light snow after midnight. Waves 1 to 3 ft building to 6 to 10 ft. A Gale Warning may be needed.

See Lake Michigan Open Lake Forecast for Wednesday through Friday.