Offshore Waters Forecast (New England)

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FZNT21 KWBC 172024
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
424 PM EDT Thu Sep 17 2026

New England continental shelf and slope waters from 60 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.

ANZ898-180830-
424 PM EDT Thu Sep 17 2026

.SYNOPSIS FOR NEW ENGLAND WATERS...High pressure across the 
outer waters this evening will shift E of the region early 
tonight. A cold front will move S over the region late tonight 
into Fri. Another high will build SE across the region Fri night 
into Sat, then shift E of the waters Sat night. A warm front will
lift N into the area Sun and Sun night, before low pressure 
moves E across the waters late Sun night and Mon while pulling a 
cold front over the area. The front will stall S of the waters 
Mon night into Tue night as the low slowly strengthens. Yet 
another high will build N of the region Mon and Mon night, then 
continue Tue and Tue night.

$$

ANZ800-180830-
Gulf of Maine to the Hague Line-
424 PM EDT Thu Sep 17 2026

.TONIGHT...S winds 5 to 10 kt, increasing to 10 to 15 kt. Seas
3 to 4 ft. Chance of showers. 
.FRI...W to NW winds 5 to 15 kt. Seas 3 to 4 ft. Chance of
showers. 
.FRI NIGHT...N winds 15 to 25 kt. Seas 3 to 6 ft. 
.SAT...N winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 3 to
6 ft. 
.SAT NIGHT...Variable winds less than 10 kt, becoming SE. Seas
3 to 4 ft. 
.SUN...S to SE winds 5 to 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...S to SE winds less than 10 kt, becoming E. Seas
3 to 4 ft. 
.MON...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 3 to 6 ft. 
.TUE...NE winds 15 to 20 kt. Seas 4 to 6 ft. 
.TUE NIGHT...NE winds 15 to 20 kt, becoming E. Seas 4 to 6 ft. 

$$

ANZ805-180830-
Georges Bank between Cape Cod and 68W north of 1000 FM-
424 PM EDT Thu Sep 17 2026

.TONIGHT...S winds 5 to 10 kt, becoming 5 to 15 kt, then,
becoming SW 10 to 15 kt. Seas 3 to 4 ft. Chance of showers. 
.FRI...W to SW winds 10 to 15 kt, becoming N. Seas 3 to 5 ft.
Chance of showers. 
.FRI NIGHT...N winds 10 to 20 kt. Seas 3 to 6 ft. 
.SAT...NE winds 15 to 20 kt, diminishing to 5 to 15 kt. Seas
4 to 6 ft. 
.SAT NIGHT...NE winds 5 to 15 kt, becoming E 5 to 10 kt. Seas
3 to 5 ft. 
.SUN...E to SE winds 5 to 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...S to SE winds 5 to 15 kt, becoming E. Seas 3 to
5 ft. 
.MON...NE winds 10 to 20 kt. Seas 4 to 7 ft. 
.MON NIGHT...NE winds 15 to 20 kt. Seas 5 to 7 ft. 
.TUE...NE winds 15 to 25 kt. Seas 5 to 8 ft. 
.TUE NIGHT...E to NE winds 15 to 25 kt. Seas 5 to 9 ft. 

$$

ANZ900-180830-
Georges Bank between 68W and the Hague Line-
424 PM EDT Thu Sep 17 2026

.TONIGHT...S winds less than 10 kt, becoming SW. Seas 3 to 4 ft.
Chance of showers. 
.FRI...W to SW winds 10 to 15 kt, becoming W to NW 10 to 20 kt.
Seas 3 to 5 ft. Chance of showers. 
.FRI NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT...N winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas
4 to 6 ft. 
.SAT NIGHT...NE winds 5 to 15 kt, becoming E 5 to 10 kt. Seas
3 to 5 ft. 
.SUN...S to SE winds 5 to 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...Variable winds 5 to 15 kt, becoming E. Seas 3 to
4 ft. 
.MON...E to NE winds 10 to 20 kt. Seas 3 to 6 ft. 
.MON NIGHT...NE winds 15 to 25 kt. Seas 4 to 7 ft. 
.TUE...NE winds 15 to 25 kt. Seas 5 to 8 ft. 
.TUE NIGHT...NE winds 15 to 25 kt, becoming E 20 to 25 kt. Seas
5 to 9 ft. 

$$

ANZ810-180830-
South of New England between the Great South Channel and Montauk
Point to 1000 FM-
424 PM EDT Thu Sep 17 2026

.TONIGHT...SW winds 5 to 10 kt, becoming 5 to 15 kt. Seas 3 to
4 ft. 
.FRI...W winds 10 to 15 kt, becoming N. Seas 3 to 5 ft. Chance
of showers. 
.FRI NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt.
Seas 3 to 5 ft. 
.SAT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas
4 to 6 ft. 
.SAT NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt.
Seas 3 to 5 ft. 
.SUN...E to SE winds 5 to 10 kt, becoming S to SE 5 to 15 kt.
Seas 3 to 4 ft. 
.SUN NIGHT...S winds 10 to 15 kt, becoming S to SW 10 to 20 kt.
Seas 3 to 6 ft. 
.MON...N to NE winds 15 to 25 kt. Seas 4 to 7 ft. 
.MON NIGHT...NE winds 20 to 25 kt. Seas 6 to 8 ft. 
.TUE...NE winds 20 to 25 kt. Seas 6 to 9 ft. 
.TUE NIGHT...NE winds 25 to 30 kt. Seas 8 to 10 ft. 

$$

ANZ815-180830-
South of Long Island between Montauk Point and Sandy Hook to
1000 FM-
424 PM EDT Thu Sep 17 2026

.TONIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt. Seas
3 to 4 ft. 
.FRI...W winds 10 to 15 kt, becoming N 5 to 10 kt. Seas 3 to
4 ft. Chance of showers. 
.FRI NIGHT...N to NE winds 5 to 10 kt, becoming NE 10 to 20 kt.
Seas 3 to 4 ft. 
.SAT...NE winds 15 to 20 kt, becoming E to NE 10 to 15 kt. Seas
4 to 5 ft. 
.SAT NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt.
Seas 3 to 5 ft. 
.SUN...SE winds 10 to 15 kt, becoming S. Seas 3 to 4 ft. 
.SUN NIGHT...S winds 15 to 20 kt, becoming SW 10 to 20 kt. Seas
4 to 6 ft. 
.MON...N to NE winds 15 to 25 kt. Seas 5 to 7 ft. 
.MON NIGHT...NE winds 20 to 25 kt. Seas 6 to 8 ft. 
.TUE...NE winds 20 to 30 kt. Seas 8 to 10 ft. 
.TUE NIGHT...NE winds 25 to 30 kt. Seas 9 to 12 ft. 

$$

.Forecaster Kells. Ocean Prediction Center.