National Weather Service Marine Forecast FZNT21 KWBC

FZNT21 KWBC 240823
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
323 AM EST Wed Dec 24 2025

New England continental shelf and slope waters from 25 nm offshore to the Hague Line, except to 1000 fm south of New England.

Seas given as significant wave height, which is the average height of the highest 1/3 of the waves. Individual waves may be more than twice the significant wave height.

Locally higher winds and seas can be expected in and near tstms.

ANZ898-242045
323 AM EST Wed Dec 24 2025

SYNOPSIS FOR NEW ENGLAND WATERS
A warm front will lift N across the waters this morning. Low pressure will move SE over the area today as intensifying low passes to the S and SE of the waters. A high pressure ridge will move E over the region tonight into Thu. Another strengthening low and its associated cold front will move SE through the waters Thu into Thu night. High pressure will build SE over the region Fri through Sun, then shift SE of the area Sun night. Another warm front will lift NE across the waters Sun into Sun night, followed by a strong cold front Sun night.


ANZ800-242045
Gulf of Maine to the Hague Line
323 AM EST Wed Dec 24 2025

GALE WARNING

TODAY
E to SE winds 20 to 30 kt, becoming E 25 to 35 kt early, then, becoming NE. Seas 6 to 11 ft. Rain with vsby 1 nm or less. Snow.

TONIGHT
N winds 15 to 25 kt, becoming W to NW 10 to 20 kt. Seas 6 to 10 ft.

THU
W to SW winds 15 to 25 kt, becoming W to NW 20 to 30 kt. Seas 6 to 10 ft. Chance of snow. Chance of rain.

THU NIGHT
N winds 30 to 35 kt. Seas 9 to 15 ft. Light freezing spray.

FRI
N winds 25 to 35 kt, diminishing to 15 to 25 kt. Seas 9 to 15 ft.

FRI NIGHT
N to NE winds 15 to 25 kt. Seas 5 to 9 ft.

SAT
NE winds 15 to 20 kt, becoming N to NE 10 to 15 kt. Seas 4 to 7 ft.

SAT NIGHT
N winds 10 to 15 kt. Seas 4 to 7 ft.

SUN
N winds 5 to 15 kt, becoming NW. Seas 3 to 6 ft.

SUN NIGHT
SW winds 10 to 20 kt, becoming S 20 to 25 kt. Seas 3 to 6 ft.


ANZ805-242045
Georges Bank between Cape Cod and 68W north of 1000 FM
323 AM EST Wed Dec 24 2025

GALE WARNING

TODAY
W winds 15 to 25 kt, becoming NW 35 to 45 kt. Seas 3 to 6 ft, building to 8 to 14 ft. Chance of rain.

TONIGHT
N winds 20 to 30 kt, becoming N to NW 10 to 20 kt. Seas 9 to 15 ft.

THU
W to SW winds 20 to 30 kt. Seas 6 to 11 ft.

THU NIGHT
N to NW winds 30 to 35 kt. Seas 10 to 17 ft. Light freezing spray.

FRI
N winds 25 to 35 kt, diminishing to 15 to 25 kt. Seas 10 to 17 ft.

FRI NIGHT
N winds 10 to 20 kt, becoming NE 10 to 15 kt. Seas 6 to 11 ft.

SAT
NE winds 10 to 15 kt, becoming 10 to 20 kt. Seas 5 to 8 ft.

SAT NIGHT
NE winds 10 to 20 kt, becoming N 10 to 15 kt. Seas 5 to 8 ft.

SUN
N winds 10 to 15 kt, becoming variable less than 5 kt. Seas 4 to 7 ft.

SUN NIGHT
SW winds 10 to 20 kt, becoming S 20 to 25 kt. Seas 3 to 5 ft.


ANZ900-242045
Georges Bank between 68W and the Hague Line
323 AM EST Wed Dec 24 2025

GALE WARNING

TODAY
E winds 15 to 25 kt, becoming E to NE 35 to 45 kt. Seas 3 to 5 ft, building to 9 to 15 ft. Rain.

TONIGHT
N winds 25 to 35 kt, diminishing to 15 to 25 kt. Seas 9 to 16 ft.

THU
W to SW winds 20 to 30 kt. Seas 7 to 11 ft.

THU NIGHT
N to NW winds 30 to 40 kt. Seas 11 to 18 ft.

FRI
N winds 30 to 35 kt, diminishing to 20 to 30 kt. Seas 10 to 18 ft.

FRI NIGHT
N winds 15 to 25 kt, diminishing to 10 to 15 kt. Seas 7 to 12 ft.

SAT
NE winds 10 to 15 kt. Seas 6 to 9 ft.

SAT NIGHT
N to NE winds 15 to 20 kt, becoming N 10 to 15 kt. Seas 6 to 8 ft.

SUN
N winds 10 to 15 kt, becoming N to NW 5 to 10 kt. Seas 4 to 8 ft.

SUN NIGHT
W to SW winds 10 to 15 kt, becoming S 20 to 25 kt. Seas 3 to 5 ft.


ANZ810-242045
South of New England between the Great South Channel and Montauk Point to 1000 FM
323 AM EST Wed Dec 24 2025

GALE WARNING

TODAY
NW winds 20 to 30 kt, becoming N to NW 35 to 45 kt. Seas 4 to 7 ft, building to 9 to 15 ft.

TONIGHT
N winds 20 to 30 kt, diminishing to 10 to 20 kt. Seas 7 to 13 ft. Chance of rain.

THU
SW winds 20 to 30 kt, becoming W 25 to 30 kt. Seas 6 to 11 ft.

THU NIGHT
N to NW winds 25 to 35 kt. Seas 9 to 15 ft.

FRI
N winds 20 to 30 kt. Seas 9 to 15 ft.

FRI NIGHT
NE winds 10 to 15 kt, becoming E to NE 10 to 20 kt. Seas 6 to 10 ft.

SAT
E to NE winds 15 to 20 kt. Seas 4 to 8 ft.

SAT NIGHT
NE winds 10 to 20 kt. Seas 4 to 8 ft.

SUN
NE winds 10 to 15 kt, becoming E to SE. Seas 4 to 7 ft.

SUN NIGHT
S winds 20 to 30 kt. Seas 3 to 6 ft.


ANZ815-242045
South of Long Island between Montauk Point and Sandy Hook to 1000 FM
323 AM EST Wed Dec 24 2025

GALE WARNING

TODAY
W to NW winds 20 to 30 kt, becoming N to NW 30 to 40 kt. Seas 4 to 7 ft, building to 7 to 13 ft.

TONIGHT
N winds 20 to 30 kt, becoming W to NW 5 to 10 kt. Seas 6 to 11 ft.

THU
SW winds 15 to 25 kt, becoming W to NW 20 to 30 kt. Seas 6 to 10 ft.

THU NIGHT
N winds 20 to 30 kt. Seas 6 to 11 ft.

FRI
N to NE winds 15 to 25 kt. Seas 6 to 11 ft.

FRI NIGHT
E winds 10 to 15 kt, increasing to 15 to 25 kt. Seas 4 to 7 ft.

SAT
E winds 20 to 25 kt. Seas 4 to 8 ft.

SAT NIGHT
NE winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas 4 to 8 ft.

SUN
E winds 10 to 15 kt, becoming SE. Seas 4 to 7 ft.

SUN NIGHT
S winds 15 to 25 kt, becoming W to SW 20 to 25 kt. Seas 4 to 7 ft.


.Forecaster Kells. Ocean Prediction Center.