Offshore Waters Forecast (New England)

FZNT21 KWBC 201421
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
921 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.

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.

ANZ898-210230-
921 AM EST Thu Nov 20 2025

.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.  

$$

ANZ800-210230-
Gulf of Maine to the Hague Line-
921 AM EST Thu Nov 20 2025

.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. 
.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. 

$$

ANZ805-210230-
Georges Bank between Cape Cod and 68W north of 1000 FM-
921 AM EST Thu Nov 20 2025

.TODAY...N to NE winds 5 to 15 kt. Seas 3 to 4 ft. 
.TONIGHT...N to NE winds less than 10 kt. Seas 3 to 4 ft. 
.FRI...W to NW winds less than 10 kt, becoming SW. Seas 3 to
4 ft. 
.FRI NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 ft. Areas of fog
with vsby 1 nm or less. 
.SAT...N to NW winds 5 to 15 kt, becoming N 15 to 20 kt. Seas
3 to 5 ft. 
.SAT NIGHT...N winds 15 to 25 kt. Seas 4 to 7 ft. 
.SUN...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 5 ft. 
.MON...W winds 20 to 30 kt, becoming NW 15 to 25 kt. Seas 4 to
7 ft. 
.MON NIGHT...NW winds 15 to 25 kt. Seas 3 to 6 ft. 

$$

ANZ900-210230-
Georges Bank between 68W and the Hague Line-
921 AM EST Thu Nov 20 2025

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

.TODAY...NE winds 10 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 5 to 10 kt, becoming W to SW 10 to 15 kt.
Seas 3 to 4 ft. 
.FRI NIGHT...SW winds 10 to 20 kt, becoming 10 to 15 kt. Seas
3 to 4 ft. 
.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 5 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 4 to 5 ft. 
.MON...W winds 20 to 25 kt, becoming NW 20 to 30 kt. Seas 5 to
7 ft. 
.MON NIGHT...NW winds 15 to 25 kt. Seas 5 to 7 ft. 

$$

ANZ810-210230-
South of New England between the Great South Channel and Montauk
Point to 1000 FM-
921 AM EST Thu Nov 20 2025

.TODAY...N to NE winds 5 to 10 kt. Seas 3 to 4 ft. 
.TONIGHT...N winds less than 10 kt. 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. 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 5 ft. 
.MON...W to NW winds 15 to 25 kt. Seas 4 to 7 ft. 
.MON NIGHT...NW winds 15 to 20 kt, becoming N 5 to 15 kt. Seas
3 to 6 ft. 

$$

ANZ815-210230-
South of Long Island between Montauk Point and Sandy Hook to
1000 FM-
921 AM EST Thu Nov 20 2025

.TODAY...N to NE winds 5 to 10 kt. Seas 3 to 4 ft. 
.TONIGHT...Variable winds less than 5 kt. Seas 2 ft or less. 
.FRI...S to SW winds less than 10 kt, becoming SW. Seas 2 ft or
less, becoming 3 ft. 
.FRI NIGHT...SW winds 10 to 15 kt, becoming W to NW 5 to 10 kt.
Seas 3 to 4 ft. Areas of fog with vsby 1 nm or less. 
.SAT...N winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 3 to
5 ft. 
.SAT NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt.
Seas 3 to 5 ft. 
.SUN...N to NW winds 5 to 10 kt, becoming W 10 to 15 kt. Seas
3 to 5 ft. 
.SUN NIGHT...W winds 15 to 20 kt. Seas 3 to 6 ft. 
.MON...NW winds 10 to 20 kt. Seas 4 to 7 ft. 
.MON NIGHT...N to NW winds 5 to 15 kt, becoming N to NE 5 to
10 kt. Seas 3 to 6 ft. 

$$

.Forecaster Holley. Ocean Prediction Center.