Offshore Waters Forecast (New England)

FZNT21 KWBC 201447
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
1047 AM EDT Tue Oct 20 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.

ANZ898-210300-
1047 AM EDT Tue Oct 20 2026

.SYNOPSIS FOR NEW ENGLAND WATERS...Today through Wed night, the
waters will be between the strong low to the S stalling offshore
of the mid-Atlantic coast, and high pressure over the Great Lakes
and SE Canada. The low will begin moving slowly NE Thu and
continue to do so through the weekend, while high pressure builds
over the waters from the W Thu night through Sat night. Mariners
should continue to monitor the latest high seas, offshore,
coastal, and tropical forecasts on the low pressure system,
executing avoidance as needed for any voyages planned especially
to the south of the area.  

$$

ANZ800-210300-
Gulf of Maine to the Hague Line-
1047 AM EDT Tue Oct 20 2026

.TODAY...NE winds 20 to 25 kt, becoming N. Seas 7 to 9 ft. 
.TONIGHT...NE winds 20 to 30 kt. Seas 7 to 10 ft. 
.WED...NE winds 20 to 30 kt. Seas 6 to 11 ft. 
.WED NIGHT...NE winds 15 to 25 kt. Seas 6 to 11 ft. Rain.
.THU...N winds 20 to 30 kt. Seas 7 to 11 ft. 
.THU NIGHT...N winds 25 to 30 kt. Seas 7 to 11 ft.
.FRI...N winds 20 to 30 kt. Seas 8 to 10 ft. 
.FRI NIGHT...N winds 15 to 25 kt. Seas 7 to 10 ft. 
.SAT...N winds 15 to 20 kt, becoming NW 10 to 15 kt. Seas 4 to
8 ft. 
.SAT NIGHT...NW winds 10 to 15 kt. Seas 3 to 6 ft. 

$$

ANZ805-210300-
Georges Bank between Cape Cod and 68W north of 1000 FM-
1047 AM EDT Tue Oct 20 2026

...GALE WARNING...

.TODAY...NE winds 25 to 35 kt. Seas 9 to 14 ft. Chance of rain. 
.TONIGHT...NE winds 30 to 40 kt. Seas 10 to 17 ft. Chance of
rain. 
.WED...NE winds 30 to 40 kt. Seas 10 to 17 ft. Rain.
.WED NIGHT...N to NE winds 25 to 35 kt. Seas 10 to 16 ft. Chance
of rain. Scattered showers. 
.THU...N winds 30 to 40 kt. Seas 10 to 17 ft. 
.THU NIGHT...N winds 25 to 35 kt, becoming 25 to 30 kt. Seas
9 to 13 ft. 
.FRI...N winds 20 to 30 kt. Seas 10 to 11 ft. 
.FRI NIGHT...N winds 15 to 25 kt. Seas 8 to 11 ft. 
.SAT...N winds 15 to 20 kt. Seas 6 to 9 ft. 
.SAT NIGHT...N to NW winds 10 to 15 kt, diminishing to 5 to
10 kt. Seas 4 to 7 ft. 

$$

ANZ900-210300-
Georges Bank between 68W and the Hague Line-
1047 AM EDT Tue Oct 20 2026

...GALE WARNING...

.TODAY...NE winds 25 to 35 kt. Seas 9 to 13 ft. Chance of rain. 
.TONIGHT...NE winds 30 to 40 kt. Seas 9 to 16 ft. Chance of
rain. 
.WED...NE winds 30 to 40 kt. Seas 10 to 16 ft. Chance of rain. 
.WED NIGHT...NE winds 20 to 30 kt. Seas 10 to 15 ft. Chance of
rain. Scattered tstms. 
.THU...N winds 30 to 40 kt. Seas 10 to 15 ft. 
.THU NIGHT...N winds 30 to 40 kt, diminishing to 25 to 30 kt.
Seas 10 to 15 ft. 
.FRI...N winds 20 to 30 kt. Seas 9 to 11 ft. 
.FRI NIGHT...N winds 15 to 25 kt. Seas 8 to 10 ft. 
.SAT...N winds 15 to 25 kt. Seas 6 to 9 ft. 
.SAT NIGHT...N to NW winds 10 to 15 kt. Seas 4 to 8 ft. 

$$

ANZ810-210300-
South of New England between the Great South Channel and Montauk
Point to 1000 FM-
1047 AM EDT Tue Oct 20 2026

...GALE WARNING...

.TODAY...NE winds 30 to 35 kt. Seas 12 to 14 ft. Chance of rain.
.TONIGHT...NE winds 30 to 40 kt. Seas 13 to 19 ft. Chance of
rain. 
.WED...NE winds 35 to 45 kt. Seas 15 to 19 ft. Chance of rain. 
.WED NIGHT...NE winds 30 to 40 kt, becoming N. Seas 14 to 18 ft.
Showers and scattered tstms. 
.THU...N winds 30 to 40 kt. Seas 10 to 17 ft. 
.THU NIGHT...N winds 25 to 30 kt. Seas 8 to 13 ft.
.FRI...N winds 20 to 25 kt. Seas 8 to 11 ft. 
.FRI NIGHT...N winds 15 to 25 kt. Seas 7 to 11 ft. 
.SAT...N winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas
5 to 9 ft. 
.SAT NIGHT...N winds 10 to 15 kt, diminishing to 5 to 10 kt.
Seas 4 to 7 ft. 

$$

ANZ815-210300-
South of Long Island between Montauk Point and Sandy Hook to
1000 FM-
1047 AM EDT Tue Oct 20 2026

...GALE WARNING...

.TODAY...NE winds 30 to 35 kt. Seas 12 to 14 ft. Chance of rain.
.TONIGHT...NE winds 30 to 40 kt. Seas 13 to 19 ft. Slight chance
of rain. 
.WED...NE winds 35 to 40 kt. Seas 15 to 19 ft. Rain.
.WED NIGHT...N winds 30 to 40 kt. Seas 13 to 18 ft. Rain.
.THU...N winds 30 to 35 kt, diminishing to 20 to 30 kt. Seas
9 to 15 ft. 
.THU NIGHT...N winds 20 to 25 kt. Seas 8 to 10 ft.
.FRI...N winds 15 to 25 kt. Seas 7 to 9 ft. 
.FRI NIGHT...N winds 15 to 20 kt. Seas 6 to 9 ft. 
.SAT...N winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas
5 to 7 ft. 
.SAT NIGHT...N winds 5 to 10 kt. Seas 4 to 6 ft. 

$$

.Forecaster Holley. Ocean Prediction Center.