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National Weather Service Marine Forecast FZUS53 KGRB

FZUS53 KGRB 241056
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
456 AM CST Wed Dec 24 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-241700
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
456 AM CST Wed Dec 24 2025

EARLY THIS MORNING
NE wind 5 to 10 kts. Waves 2 ft or less. Cloudy.

TODAY
E wind 5 to 10 kts veering S in the late morning and afternoon. Waves 2 ft or less. Cloudy.

TONIGHT
SW wind 5 to 10 kts veering NW, then veering N 10 to 20 kts after midnight. Waves 1 to 3 ft. Patchy freezing drizzle in the evening.

THURSDAY
NE wind 10 to 20 kts. Waves 2 to 4 ft. Mostly cloudy.

THURSDAY NIGHT
SE wind 15 to 25 kts. Waves 2 to 4 ft. Light snow, light rain and light freezing rain likely after midnight. A Small Craft Advisory may be needed.

LMZ541-241700
Rock Island Passage to Sturgeon Bay WI
456 AM CST Wed Dec 24 2025

EARLY THIS MORNING
NE wind 5 to 10 kts. Waves 2 ft or less. Cloudy.

TODAY
E wind 5 to 10 kts veering S 10 to 15 kts in the late morning and afternoon. Waves 1 to 3 ft. Cloudy.

TONIGHT
SW wind 5 to 10 kts veering N 10 to 15 kts after midnight. Waves 1 to 3 ft. Mostly cloudy in the evening then becoming partly cloudy.

THURSDAY
NE wind 10 to 20 kts. Waves 2 to 4 ft. Mostly cloudy.

THURSDAY NIGHT
SE wind 15 to 25 kts. Waves 4 to 7 ft. A chance of light snow. A chance of light rain and light freezing rain after midnight. A Small Craft Advisory may be needed.

LMZ542-543-241700
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI
456 AM CST Wed Dec 24 2025

SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY AFTERNOON

EARLY THIS MORNING
NE wind 5 to 10 kts. Waves 2 ft or less. Mostly cloudy.

TODAY
E wind 5 to 10 kts veering S 10 to 15 kts in the late morning and afternoon. Waves 2 to 4 ft. Cloudy.

TONIGHT
SW wind 5 to 10 kts veering NW, then veering N 10 to 15 kts after midnight. Waves 2 to 4 ft. Patchy drizzle in the evening.

THURSDAY
NE wind 15 to 25 kts veering E 10 to 20 kts early in the afternoon. Waves 3 to 5 ft. Mostly cloudy.

THURSDAY NIGHT
SE wind to 30 kts. Waves 4 to 7 ft building to 6 to 10 ft after midnight. Light rain, light snow likely and a chance of light freezing rain after midnight.

See Lake Michigan Open Lake Forecast for Friday through Sunday.

Wave height forecast is for ice free areas.