Offshore Forecast
Issued by NWS

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
891
FZNT21 KWBC 172031
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
331 PM EST Mon Nov 17 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.

ANZ898-180800-
331 PM EST Mon Nov 17 2025

.SYNOPSIS FOR NEW ENGLAND WATERS...A series of surface troughs
will continue to move NW to SE over the area tonight through Tue
night around broad low pressure over Atlantic Canada. High
pressure builds over the waters Wed and continues through Thu
night. Low pressure will move just S and SE of the area Wed
night through Thu night. High pressure shifts E Fri as a cold
front approaches from the W. The front moves through the waters
Fri night and early Sat. High pressure builds over the area once
again for Sat and most of Sat night, with a surface trough
developing over the waters Sat night.

$$

ANZ800-180800-
Gulf of Maine to the Hague Line-
331 PM EST Mon Nov 17 2025

.TONIGHT...W to NW winds 25 to 30 kt. Seas 9 to 15 ft. Isolated
showers.
.TUE...W winds 20 to 30 kt. Seas 6 to 11 ft.
.TUE NIGHT...W to NW winds 15 to 25 kt. Seas 5 to 9 ft.
.WED...W winds 5 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...NW winds less than 10 kt, becoming variable. Seas
3 ft early, becoming 2 ft or less.
.THU...Variable winds less than 10 kt. Seas 2 ft or less.
.THU NIGHT...E to SE winds less than 10 kt, becoming variable.
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 increasing to 15 to 25 kt. Seas 4 to
7 ft.
.SAT...N to NW winds 15 to 25 kt. Seas 5 to 8 ft.
.SAT NIGHT...W to NW winds 15 to 25 kt. Seas 4 to 8 ft.

$$

ANZ805-180800-
Georges Bank between Cape Cod and 68W north of 1000 FM-
331 PM EST Mon Nov 17 2025

...GALE WARNING...

.TONIGHT...W winds 25 to 35 kt, becoming 25 to 30 kt. Seas 11 to
18 ft. Isolated showers.
.TUE...W winds 20 to 30 kt. Seas 7 to 12 ft. Isolated showers
early.
.TUE NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt.
Seas 5 to 9 ft.
.WED...W to NW winds 5 to 15 kt. Seas 3 to 5 ft. Chance of rain.
.WED NIGHT...Variable winds less than 10 kt, becoming N to NE.
Seas 3 ft early, becoming 2 ft or less.
.THU...NE winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3 to
4 ft.
.THU NIGHT...NE winds 10 to 20 kt, becoming N to NE 5 to 15 kt.
Seas 3 to 4 ft.
.FRI...N winds 5 to 15 kt, becoming W to SW. Seas 3 to 4 ft.
.FRI NIGHT...SW winds 5 to 15 kt, becoming S to SW 10 to 20 kt.
Seas 4 to 7 ft.
.SAT...W to NW winds 20 to 30 kt. Seas 5 to 9 ft.
.SAT NIGHT...W to NW winds 15 to 25 kt. Seas 4 to 8 ft.

$$

ANZ900-180800-
Georges Bank between 68W and the Hague Line-
331 PM EST Mon Nov 17 2025

...GALE WARNING...

.TONIGHT...W winds 30 to 35 kt, diminishing to 25 to 30 kt. Seas
10 to 18 ft. Isolated showers.
.TUE...W winds 20 to 30 kt. Seas 9 to 13 ft. Isolated showers.
.TUE NIGHT...W winds 15 to 25 kt. Seas 6 to 11 ft.
.WED...W winds 5 to 15 kt. Seas 3 to 6 ft. Chance of rain.
.WED NIGHT...W to NW winds less than 10 kt, becoming variable.
Seas 3 to 4 ft.
.THU...E to NE winds 5 to 15 kt, increasing to 10 to 20 kt. Seas
2 ft or less, becoming 3 ft.
.THU NIGHT...E to NE winds 10 to 20 kt. Seas 3 to 4 ft.
.FRI...N to NE winds 5 to 15 kt, becoming W to NW. Seas 3 to
5 ft.
.FRI NIGHT...W to SW winds 10 to 15 kt, becoming SW 10 to 20 kt.
Seas 4 to 8 ft.
.SAT...W to SW winds 20 to 30 kt, becoming NW 20 to 25 kt. Seas
5 to 9 ft.
.SAT NIGHT...W to NW winds 15 to 25 kt. Seas 6 to 9 ft.

$$

ANZ810-180800-
South of New England between the Great South Channel and Montauk
Point to 1000 FM-
331 PM EST Mon Nov 17 2025

...GALE WARNING...

.TONIGHT...W to NW winds 30 to 35 kt, diminishing to 20 to
30 kt. Seas 10 to 17 ft. Isolated showers.
.TUE...W winds 20 to 30 kt. Seas 6 to 11 ft.
.TUE NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt.
Seas 4 to 8 ft. Chance of rain overnight.
.WED...W winds 5 to 15 kt, becoming variable. Seas 3 to 5 ft.
Rain likely, then a chance of rain.
.WED NIGHT...NE winds less than 10 kt, becoming E to NE. Seas
3 ft early, becoming 2 ft or less.
.THU...E to NE winds 10 to 15 kt, becoming NE 10 to 20 kt. Seas
3 to 4 ft.
.THU NIGHT...NE winds 10 to 20 kt, becoming N 5 to 15 kt. Seas
3 to 4 ft.
.FRI...N winds less than 10 kt, becoming SW 10 to 20 kt. Seas
3 to 4 ft.
.FRI NIGHT...S to SW winds 15 to 25 kt. Seas 4 to 7 ft.
.SAT...N to NW winds 20 to 30 kt. Seas 4 to 8 ft.
.SAT NIGHT...NW winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 4 to 8 ft.

$$

ANZ815-180800-
South of Long Island between Montauk Point and Sandy Hook to
1000 FM-
331 PM EST Mon Nov 17 2025

.TONIGHT...NW winds 20 to 30 kt. Seas 8 to 14 ft. Isolated
showers ending.
.TUE...NW winds 20 to 25 kt, becoming W 15 to 20 kt. Seas 4 to
8 ft.
.TUE NIGHT...W winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 3 to 6 ft. Chance of rain overnight.
.WED...W winds 5 to 15 kt, becoming NE 5 to 10 kt. Seas 3 ft
early, becoming 2 ft or less. Rain likely, then a chance of
rain.
.WED NIGHT...NE winds 5 to 15 kt. Seas 2 ft or less, becoming
3 ft.
.THU...NE winds 5 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...NE winds 5 to 15 kt, becoming variable. Seas 3 to
4 ft.
.FRI...W winds less than 10 kt, becoming SW 10 to 20 kt. Seas
3 to 4 ft.
.FRI NIGHT...S to SW winds 10 to 20 kt. Seas 3 to 5 ft.
.SAT...N to NW winds 15 to 25 kt. Seas 4 to 8 ft.
.SAT NIGHT...NW winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 4 to 7 ft.

$$

.Forecaster Figurskey. Ocean Prediction Center.