Station List

National Weather Service Marine Forecast FZUS53 KGRB

FZUS53 KGRB 162250
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
550 PM CDT Thu Apr 16 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-170400
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
550 PM CDT Thu Apr 16 2026

LATE THIS AFTERNOON
SE wind around 5 kts. Waves 2 ft or less. Areas of dense fog.

TONIGHT
SE wind 5 to 10 kts. Waves 2 ft or less. Areas of dense fog in the evening, then widespread dense fog after midnight.

FRIDAY
S wind 10 to 15 kts increasing to 15 to 25 kts early in the afternoon. Waves 2 to 4 ft. Areas of dense fog in the morning. A Small Craft Advisory may be needed.

FRIDAY NIGHT
S wind 15 to 25 kts veering W 10 to 20 kts after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. A chance of thunderstorms in the evening. Rain showers.

SATURDAY
W wind 15 to 25 kts. Waves 1 to 3 ft. A chance of showers.

LMZ541-170400
Rock Island Passage to Sturgeon Bay WI
550 PM CDT Thu Apr 16 2026

LATE THIS AFTERNOON
NE wind around 5 kts. Waves 2 ft or less. Patchy fog.

TONIGHT
S wind 5 to 10 kts. Waves 2 ft or less. Areas of fog in the evening, then widespread dense fog after midnight.

FRIDAY
S wind 15 to 25 kts. Waves 1 to 3 ft building to 3 to 5 ft in the afternoon. Areas of dense fog in the morning.

FRIDAY NIGHT
S wind 15 to 25 kts veering SW after midnight. Waves 4 to 7 ft. Rain showers and a chance of thunderstorms.

SATURDAY
W wind 15 to 25 kts decreasing to 10 to 15 kts in the late morning and afternoon. Waves 4 to 7 ft subsiding to 2 to 4 ft in the afternoon. A chance of showers.

LMZ542-543-170400
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI
550 PM CDT Thu Apr 16 2026

LATE THIS AFTERNOON
NE wind around 5 kts. Waves 2 ft or less. Areas of dense fog.

TONIGHT
S wind 5 to 10 kts. Waves 2 ft or less. Areas of dense fog in the evening, then widespread dense fog after midnight.

FRIDAY
S wind 10 to 15 kts increasing to to 30 kts in the late morning and afternoon. Waves 1 to 3 ft building to 4 to 7 ft in the afternoon. Areas of dense fog in the morning.

FRIDAY NIGHT
S wind to 30 kts veering W 15 to 25 kts after midnight. Waves 5 to 8 ft. A chance of thunderstorms in the evening. Rain showers.

SATURDAY
W wind 15 to 25 kts. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. A chance of showers.

See Lake Michigan Open Lake Forecast for Sunday through Tuesday.

Wave height forecast is for ice free areas.