National Weather Service Marine Forecast FZUS53 KGRB

FZUS53 KGRB 180517
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
1117 PM CST Tue Feb 17 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ541-181100
Rock Island Passage to Sturgeon Bay WI
1117 PM CST Tue Feb 17 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT

GALE WARNING IN EFFECT THROUGH WEDNESDAY MORNING

SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING

REST OF TONIGHT
E wind to 30 kts increasing to gales to 35 kts after midnight. Gusts to 40 kts after midnight. Waves 8 to 12 ft. A chance of rain late in the evening, then rain after midnight.

WEDNESDAY
E wind to 30 kts with gale force gusts to around 40 kts becoming SE 10 to 20 kts early in the afternoon. Waves 8 to 12 ft subsiding to 6 to 10 ft in the afternoon. Rain and freezing rain in the morning, then a slight chance of light rain in the afternoon.

WEDNESDAY NIGHT
NE wind 10 to 15 kts veering SE in the late evening and overnight. Waves 3 to 5 ft subsiding to 2 to 4 ft after midnight. Mostly cloudy.

THURSDAY
SE wind 10 to 15 kts backing E early in the afternoon. Waves 1 to 3 ft. Partly cloudy.

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LMZ542-543-181100
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI
1117 PM CST Tue Feb 17 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON

REST OF TONIGHT
E wind to 30 kts veering SE gales to 35 kts after midnight. Waves 8 to 12 ft. Rain.

WEDNESDAY
SE wind 15 to 25 kts veering SW 10 to 20 kts in the late morning and afternoon. Waves 6 to 10 ft subsiding to 4 to 7 ft in the afternoon. A chance of light rain in the morning.

WEDNESDAY NIGHT
W wind 5 to 10 kts backing S after midnight. Waves 2 to 4 ft. Partly cloudy.

THURSDAY
E wind 10 to 15 kts. Waves 2 to 4 ft. A chance of light rain in the afternoon.

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See Lake Michigan Open Lake Forecast for Friday through Sunday.

Wave height forecast is for ice free areas.