203
FZNT33 KWBC 201423
OFFN31

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
923 AM EST Thu Nov 20 2025

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

Conditions given represent the highest within that period.

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.

.SYNOPSIS FOR NEW ENGLAND WATERS...High pressure will build over
the waters today, then shift NE of the region tonight into Fri.
Low pressure will pass just S and SE of the area today into
tonight, then track NE to the E of the waters Fri into Fri night.
An area of low pressure and associated warm front will move
offshore into the southern waters late Fri. Meanwhile, a cold
front will move SE across the waters Fri night into Sat. The low
will be absorbed by the cold front Sat and move quickly NE away
from the area Sat night. A high pressure ridge will pass by to
the S of the waters Sat night through Sun night. Another cold
front will move SE across the waters Mon, followed by high
pressure building E across the waters Mon night.

Gulf of Maine to the Hague Line

.TODAY...NE winds 5 to 10 kt. Seas 2 ft or less.
.TONIGHT...N to NE winds less than 10 kt, becoming variable.
Seas 3 to 4 ft.
.FRI...SW winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3 to
4 ft.
.FRI NIGHT...W to SW winds 10 to 20 kt. Seas 3 to 5 ft. Chance
of showers.
.SAT...NW winds 10 to 15 kt, becoming N to NW 15 to 20 kt. Seas
3 to 4 ft.
.SAT NIGHT...N to NW winds 15 to 25 kt. Seas 4 to 7 ft.
.SUN...NW winds 5 to 15 kt, becoming W 10 to 15 kt. Seas 3 to
5 ft.
.SUN NIGHT...W winds 10 to 20 kt. Seas 3 to 5 ft.
.MON...W winds 20 to 30 kt, becoming NW. Seas 4 to 7 ft.
.MON NIGHT...NW winds 15 to 25 kt. Seas 4 to 7 ft.

Georges Bank...from the Northeast Channel to the Great South
Channel including waters east of Cape Cod...to the Hague Line

...GALE FORCE WINDS POSSIBLE SAT NIGHT...

.TODAY...NE winds 5 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...N to NE winds 5 to 15 kt. Seas 3 to 5 ft.
.FRI...N to NW winds less than 10 kt, becoming W to SW. Seas
3 to 4 ft.
.FRI NIGHT...SW winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 3 to 4 ft. Chance of showers.
.SAT...S to SW winds 5 to 15 kt, becoming N 20 to 30 kt. Seas
3 to 5 ft.
.SAT NIGHT...N winds 25 to 35 kt, diminishing to 15 to 25 kt.
Seas 4 to 7 ft.
.SUN...NW winds 10 to 15 kt, becoming W. Seas 4 to 7 ft.
.SUN NIGHT...W winds 15 to 20 kt. Seas 3 to 5 ft.
.MON...W winds 20 to 30 kt, becoming NW. Seas 4 to 7 ft.
.MON NIGHT...NW winds 15 to 25 kt. Seas 4 to 7 ft.

South of New England...from the Great South Channel to Hudson
Canyon including the waters south of Marthas Vineyard and
Nantucket Island...out to 1000 fm

.TODAY...NE winds 5 to 10 kt, becoming N. Seas 3 to 4 ft.
.TONIGHT...N to NE winds less than 10 kt, becoming variable.
Seas 3 to 4 ft.
.FRI...Variable winds less than 10 kt, becoming SW 10 to 20 kt.
Seas 3 to 4 ft.
.FRI NIGHT...SW winds 10 to 15 kt, becoming W to SW 5 to 10 kt.
Seas 3 to 4 ft. Chance of showers and areas of fog with vsby
1 nm or less.
.SAT...N winds 5 to 15 kt, increasing to 15 to 20 kt. Seas 3 to
5 ft.
.SAT NIGHT...N winds 15 to 25 kt. Seas 4 to 7 ft.
.SUN...N to NW winds 5 to 10 kt, becoming W 10 to 15 kt. Seas
3 to 6 ft.
.SUN NIGHT...W winds 15 to 20 kt. Seas 3 to 6 ft.
.MON...W to NW winds 15 to 25 kt. Seas 4 to 7 ft.
.MON NIGHT...NW winds 10 to 20 kt, becoming N 5 to 15 kt. Seas
3 to 6 ft.

.Forecaster Holley. Ocean Prediction Center.