340
FZNT21 KWBC 090831
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
431 AM EDT Thu Oct 9 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.

ANZ898-092000-
431 AM EDT Thu Oct 9 2025

.SYNOPSIS FOR NEW ENGLAND WATERS...High pressure will continue
to build over the area behind a cold front now south of the
waters. Aside from a trough or secondary cold front moving south
over the area today, high pressure then continues through Fri
night. The high will gradually shift NE Sat through Sun as a
coastal low moves N just offshore of the SE U.S. The low will
strengthen and expand as it moves N, being centered just
offshore of the mid-Atlantic coast by Sun night. The broad,
complex low will extend over much of the east coast Sun night and
Mon, with the broad low finally starting to shift E Mon night.
Mariners should monitor later forecasts on the coastal system.
This will be a long duration event for the east coast, impactful
to the mariner.

$$

ANZ800-092000-
Gulf of Maine to the Hague Line-
431 AM EDT Thu Oct 9 2025

...GALE FORCE WINDS POSSIBLE SUN NIGHT...

.TODAY...N winds 15 to 25 kt. Seas 5 to 9 ft.
.TONIGHT...N winds 15 to 25 kt. Seas 4 to 8 ft.
.FRI...N to NW winds less than 10 kt, becoming W to SW. Seas
3 to 5 ft.
.FRI NIGHT...W to SW winds 10 to 20 kt. Seas 3 to 5 ft.
.SAT...W winds 10 to 20 kt, becoming W to SW 5 to 15 kt. Seas
3 to 5 ft.
.SAT NIGHT...S to SW winds less than 10 kt, becoming E. Seas
3 to 4 ft.
.SUN...E winds 10 to 20 kt, increasing to 20 to 30 kt. Seas 7 to
11 ft.
.SUN NIGHT...E winds 30 to 40 kt. Seas 10 to 17 ft.
.MON...E winds 25 to 35 kt. Seas 10 to 18 ft.
.MON NIGHT...E winds 30 to 40 kt. Seas 10 to 18 ft.

$$

ANZ805-092000-
Georges Bank between Cape Cod and 68W north of 1000 FM-
431 AM EDT Thu Oct 9 2025

...GALE FORCE WINDS POSSIBLE SUN...

.TODAY...N winds 20 to 25 kt. Seas 6 to 9 ft.
.TONIGHT...N winds 15 to 25 kt. Seas 5 to 9 ft.
.FRI...N to NE winds 5 to 15 kt, becoming variable. Seas 3 to
6 ft.
.FRI NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 ft.
.SAT...Variable winds 5 to 15 kt, becoming E 10 to 20 kt. Seas
3 to 5 ft.
.SAT NIGHT...E winds 15 to 25 kt. Seas 7 to 11 ft.
.SUN...E winds increasing to 30 to 40 kt. Seas 11 to 19 ft.
.SUN NIGHT...E winds 30 to 40 kt. Seas 12 to 20 ft.
.MON...E winds 25 to 35 kt. Seas 15 to 19 ft.
.MON NIGHT...E winds 30 to 40 kt. Seas 11 to 19 ft.

$$

ANZ900-092000-
Georges Bank between 68W and the Hague Line-
431 AM EDT Thu Oct 9 2025

...GALE FORCE WINDS POSSIBLE SUN...

.TODAY...N winds 20 to 30 kt. Seas 8 to 11 ft.
.TONIGHT...N winds 15 to 25 kt. Seas 5 to 9 ft.
.FRI...N winds 10 to 20 kt, becoming variable less than 10 kt.
Seas 4 to 7 ft.
.FRI NIGHT...Variable winds 5 to 15 kt, becoming SW. Seas 3 to
4 ft.
.SAT...Variable winds 5 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 15 to 25 kt. Seas 3 to 6 ft, building to
6 to 10 ft.
.SUN...E winds 20 to 30 kt, increasing to 25 to 35 kt. Seas
building to 11 to 19 ft.
.SUN NIGHT...E winds 30 to 40 kt. Seas 12 to 20 ft.
.MON...E winds 30 to 40 kt. Seas 15 to 21 ft.
.MON NIGHT...E winds 30 to 40 kt. Seas 13 to 18 ft.

$$

ANZ810-092000-
South of New England between the Great South Channel and Montauk
Point to 1000 FM-
431 AM EDT Thu Oct 9 2025

...GALE FORCE WINDS POSSIBLE SUN...

.TODAY...N winds 15 to 25 kt. Seas 5 to 9 ft.
.TONIGHT...N winds 15 to 25 kt, becoming NE 10 to 15 kt. Seas
5 to 9 ft.
.FRI...E to NE winds 5 to 15 kt, becoming variable. Seas 3 to
6 ft.
.FRI NIGHT...S to SE winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT...E winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3 to
6 ft.
.SAT NIGHT...E winds 20 to 30 kt. Seas 8 to 13 ft.
.SUN...E to NE winds increasing to 35 to 45 kt. Seas 13 to 22
ft.
.SUN NIGHT...E to NE winds 35 to 45 kt. Seas 13 to 21 ft.
.MON...E winds 25 to 35 kt, diminishing to 20 to 30 kt. Seas
13 to 18 ft.
.MON NIGHT...E to NE winds 20 to 30 kt. Seas 10 to 15 ft.

$$

ANZ815-092000-
South of Long Island between Montauk Point and Sandy Hook to
1000 FM-
431 AM EDT Thu Oct 9 2025

...STORM FORCE WINDS POSSIBLE SUN...

.TODAY...N winds 15 to 25 kt. Seas 4 to 8 ft.
.TONIGHT...NE winds 10 to 20 kt, becoming 10 to 15 kt. Seas 4 to
7 ft.
.FRI...E winds 5 to 15 kt, becoming SE 5 to 10 kt. Seas 3 to
4 ft.
.FRI NIGHT...S to SE winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT...E winds increasing to 15 to 25 kt. Seas 5 to 8 ft.
.SAT NIGHT...E winds 20 to 30 kt. Seas 8 to 14 ft.
.SUN...NE winds increasing to 35 to 45 kt, becoming 35 to 50 kt.
Seas 14 to 24 ft.
.SUN NIGHT...NE winds 40 to 50 kt, becoming E 30 to 40 kt. Seas
15 to 23 ft.
.MON...E winds 30 to 40 kt. Seas 13 to 19 ft.
.MON NIGHT...NE winds 25 to 35 kt. Seas 10 to 14 ft.

$$

.Forecaster Figurskey. Ocean Prediction Center.