National Weather Service Marine Forecast FZUS53 KGRB

FZUS53 KGRB 180438
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
1038 PM CST Sat Jan 17 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-181100
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
1038 PM CST Sat Jan 17 2026

GALE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY MORNING

REST OF TONIGHT
NW wind 5 to 10 kts backing W after midnight. Waves 2 ft or less. A chance of light snow late in the evening. A chance of flurries.

SUNDAY
SW wind 10 to 15 kts. Waves 2 ft or less. A chance of light snow in the afternoon.

SUNDAY NIGHT
W wind 10 to 15 kts becoming NW to 30 kts with gale force gusts to around 35 kts in the late evening and overnight. Waves 2 ft or less. A chance of light snow. patchy blowing snow after midnight.

MONDAY
NW wind to 30 kts. Gusts to 35 kts in the morning. Waves 2 ft or less. Patchy blowing snow.

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LMZ541-181100
Rock Island Passage to Sturgeon Bay WI
1038 PM CST Sat Jan 17 2026

GALE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY MORNING

REST OF TONIGHT
NW wind 10 to 15 kts backing W 5 to 10 kts after midnight. Waves 2 ft or less. A slight chance of light snow late in the evening, then a chance of flurries after midnight.

SUNDAY
W wind 10 to 15 kts. Waves 2 ft or less. A chance of light snow.

SUNDAY NIGHT
W wind 10 to 20 kts with gale force gusts to around 35 kts becoming NW to 30 kts with gale force gusts to around 35 kts after midnight. Waves 2 ft or less building to 3 to 5 ft after midnight. A chance of light snow.

MONDAY
NW wind to 30 kts. Gusts to 40 kts in the morning. Waves 3 to 5 ft subsiding to 2 to 4 ft in the afternoon. Partly sunny.

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LMZ542-543-181100
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI
1038 PM CST Sat Jan 17 2026

GALE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY MORNING

REST OF TONIGHT
NW wind 10 to 15 kts backing W after midnight. Waves 1 to 3 ft. Light snow likely late in the evening, then a chance of light snow after midnight.

SUNDAY
W wind 10 to 15 kts. Waves 2 ft or less. A slight chance of light snow in the morning, then light snow likely in the afternoon.

SUNDAY NIGHT
W wind 10 to 15 kts becoming NW to 30 kts with gale force gusts to around 35 kts in the late evening and overnight. Waves 1 to 3 ft building to 4 to 7 ft after midnight. Light snow likely in the evening, then a chance of light snow after midnight.

MONDAY
NW gales to 35 kts with gale force gusts to around 40 kts decreasing to to 30 kts with gale force gusts to around 40 kts in the late morning and afternoon. Waves 4 to 7 ft subsiding to 2 to 4 ft in the afternoon. Partly sunny.

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See Lake Michigan Open Lake Forecast for Tuesday through Thursday.

Wave height forecast is for ice free areas.