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National Weather Service Marine Forecast FZUS53 KGRB
FZUS53 KGRB 151941
NSHGRB
Nearshore Marine Forecast
National Weather Service Green Bay WI
241 PM CDT Sat Mar 15 2025
For waters within five nautical miles of the shore on Lake Michigan
LMZ521-522-160200
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
241 PM CDT Sat Mar 15 2025
SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON
GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING
THIS AFTERNOON
SW wind 15 to 25 kts with gusts to around
35 kts. Haze. A slight chance of light showers and thunderstorms.
Waves 1 to 3 ft.
TONIGHT
SW wind 10 to 20 kts veering NW after midnight. A
slight chance of rain showers, snow showers and freezing rain
after midnight. Waves 1 to 3 ft. A Small Craft Advisory may be
needed.
SUNDAY
NW wind 10 to 20 kts with gusts to around 25 kts.
Cloudy in the morning then becoming partly cloudy. Waves 1 to
3 ft.
SUNDAY NIGHT
NW wind 5 to 10 kts backing SW after midnight.
Mostly clear. Waves 2 ft or less.
Wave height forecast is for ice free areas.
LMZ541-160200
Rock Island Passage to Sturgeon Bay WI
241 PM CDT Sat Mar 15 2025
GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING
THIS AFTERNOON
S wind to around 30 kts with gale force gusts
to around 40 kts. Haze and patchy fog. A slight chance of rain
showers. Waves 8 to 12 ft subsiding to 6 to 10 ft late.
TONIGHT
SW wind 10 to 20 kts veering NW after midnight. A
chance of light rain and snow showers after midnight. Waves 5 to
8 ft subsiding to 3 to 5 ft. A Small Craft Advisory may be
needed.
SUNDAY
NW wind 10 to 20 kts with gusts to around 30 kts. A
chance of snow showers and rain showers in the morning. Waves
2 to 4 ft subsiding to 1 to 3 ft in the late morning and
afternoon.
SUNDAY NIGHT
NW wind 5 to 10 kts backing SW after midnight.
Mostly clear. Waves 2 ft or less.
LMZ542-543-160200
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI
241 PM CDT Sat Mar 15 2025
GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING
THIS AFTERNOON
SW wind 15 to 25 kts with gusts to around
35 kts. Haze and patchy fog. A slight chance of rain showers.
Waves 6 to 10 ft subsiding to 5 to 8 ft late.
TONIGHT
W wind 10 to 20 kts veering NW after midnight. A
chance of snow showers and a slight chance of rain showers after
midnight. Waves 4 to 7 ft subsiding to 1 to 3 ft. A Small Craft
Advisory may be needed.
SUNDAY
NW wind 15 to 25 kts. A chance of snow showers in the
morning. Waves 2 to 4 ft subsiding to 1 to 3 ft in the late
morning and afternoon.
SUNDAY NIGHT
NW wind 5 to 10 kts backing SW after midnight.
Mostly clear. Waves 2 ft or less.
See Lake Michigan Open Lake Forecast for Tuesday through Thursday.