559
FZUS53 KGRB 212056
NSHGRB
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE GREEN BAY WI
356 PM CDT TUE APR 21 2026
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN
LMZ521-522-220400-
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-
356 PM CDT TUE APR 21 2026
LATE THIS AFTERNOON
E WIND 5 TO 10 KTS. WAVES 2 FT OR LESS.
SUNNY.
TONIGHT
NE WIND 5 TO 10 KTS. WAVES 2 FT OR LESS. CLEAR.
WEDNESDAY
E WIND 5 TO 10 KTS VEERING SE EARLY IN THE
AFTERNOON. WAVES 2 FT OR LESS. SUNNY.
WEDNESDAY NIGHT
SE WIND 5 TO 10 KTS. WAVES 2 FT OR LESS.
MOSTLY CLEAR.
THURSDAY
SE WIND 10 TO 15 KTS. WAVES 1 TO 3 FT. PARTLY SUNNY.
LMZ541-220400-
ROCK ISLAND PASSAGE TO STURGEON BAY WI-
356 PM CDT TUE APR 21 2026
LATE THIS AFTERNOON
E WIND 5 TO 10 KTS. WAVES 2 TO 4 FT.
SUNNY.
TONIGHT
NE WIND 5 TO 10 KTS. WAVES 2 TO 4 FT SUBSIDING TO 1 TO
3 FT AFTER MIDNIGHT. CLEAR.
WEDNESDAY
NE WIND 5 TO 10 KTS VEERING E IN THE LATE MORNING
AND AFTERNOON. WAVES 2 FT OR LESS. SUNNY.
WEDNESDAY NIGHT
SE WIND 10 TO 15 KTS. WAVES 2 FT OR LESS.
MOSTLY CLEAR.
THURSDAY
SE WIND 10 TO 15 KTS. WAVES 1 TO 3 FT BUILDING TO
3 TO 5 FT IN THE AFTERNOON. PARTLY SUNNY. A SMALL CRAFT ADVISORY
MAY BE NEEDED.
LMZ542-543-220400-
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-
356 PM CDT TUE APR 21 2026
LATE THIS AFTERNOON
E WIND 5 TO 10 KTS. WAVES 2 TO 4 FT.
SUNNY.
TONIGHT
NE WIND 5 TO 10 KTS. WAVES 1 TO 3 FT. CLEAR.
WEDNESDAY
NE WIND 5 TO 10 KTS VEERING E EARLY IN THE
AFTERNOON. WAVES 2 FT OR LESS. SUNNY.
WEDNESDAY NIGHT
SE WIND 5 TO 10 KTS VEERING S 10 TO 15 KTS
AFTER MIDNIGHT. WAVES 2 FT OR LESS. CLEAR IN THE EVENING THEN
BECOMING PARTLY CLOUDY.
THURSDAY
S WIND 10 TO 20 KTS. WAVES 1 TO 3 FT BUILDING TO 4 TO
7 FT IN THE AFTERNOON. PARTLY SUNNY. A SMALL CRAFT ADVISORY MAY
BE NEEDED.
SEE LAKE MICHIGAN OPEN LAKE FORECAST FOR FRIDAY THROUGH SUNDAY.
WAVE HEIGHT FORECAST IS FOR ICE FREE AREAS.
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