962
FZNT21 KWBC 180857
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
457 AM EDT Mon Aug 18 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.

ANZ898-182000-
457 AM EDT Mon Aug 18 2025

.SYNOPSIS FOR NEW ENGLAND WATERS...A cold front across the S
waters this morning will pass S of the area today and tonight as
high pressure builds S across the region. The high will remain
over the area Tue, then shift E of the area Tue night through Wed
night. Hurricane Erin will remain S and E of the waters. Tropical
storm conditions will be possible in the far SE waters Thu night
as it lifts NE through the Outer Mid- Atlantic Waters. Long
period S swell from Hurricane Erin will move into the region Tue,
then continue through Thu night before backing to the SE and E
Thu night through Fri night. A high pressure ridge will build
across the waters late Fri and Fri night. For more information on
Hurricane Erin, please closely monitor the latest forecasts from
the National Hurricane Center.

$$

ANZ800-182000-
Gulf of Maine to the Hague Line-
457 AM EDT Mon Aug 18 2025

.TODAY...N winds 15 to 25 kt. Seas 4 to 7 ft.
.TONIGHT...N winds 5 to 15 kt, becoming NE. Seas 3 to 6 ft.
.TUE...NE winds 5 to 10 kt, becoming E. Seas 3 to 4 ft.
.TUE NIGHT...Variable winds less than 10 kt, becoming S to SE.
Seas 3 to 5 ft.
.WED...Variable winds less than 5 kt, becoming SE. Seas 3 to
6 ft.
.WED NIGHT...E to SE winds less than 10 kt. Seas 4 to 8 ft.
.THU...E winds 5 to 15 kt, becoming E to NE 10 to 20 kt. Seas
7 to 13 ft.
.THU NIGHT...NE winds 15 to 25 kt. Seas 10 to 17 ft.
.FRI...NE winds 15 to 25 kt, becoming N 10 to 20 kt. Seas 10 to
17 ft.
.FRI NIGHT...Variable winds less than 10 kt, becoming W to SW.
Seas 6 to 11 ft.

$$

ANZ805-182000-
Georges Bank between Cape Cod and 68W north of 1000 FM-
457 AM EDT Mon Aug 18 2025

.TODAY...N to NE winds 15 to 25 kt. Seas 4 to 7 ft. Isolated
showers and tstms.
.TONIGHT...NE winds 10 to 20 kt, becoming 10 to 15 kt. Seas 4 to
8 ft.
.TUE...NE winds 5 to 15 kt, becoming E. Seas 4 to 7 ft.
.TUE NIGHT...E to SE winds 5 to 15 kt. Seas 4 to 8 ft.
.WED...E winds 5 to 15 kt. Seas 6 to 10 ft.
.WED NIGHT...E winds 5 to 15 kt, increasing to 10 to 20 kt. Seas
9 to 15 ft.
.THU...E winds 15 to 25 kt, becoming NE 20 to 30 kt. Seas 13 to
23 ft.
.THU NIGHT...NE winds 20 to 30 kt. Seas 15 to 25 ft.
.FRI...N winds 20 to 30 kt. Seas 13 to 21 ft.
.FRI NIGHT...N to NE winds 10 to 20 kt, becoming variable 5 to
10 kt. Seas 8 to 14 ft.

$$

ANZ900-182000-
Georges Bank between 68W and the Hague Line-
457 AM EDT Mon Aug 18 2025

...TROPICAL STORM CONDITIONS POSSIBLE THU NIGHT...

.TODAY...N winds 15 to 25 kt. Seas 4 to 7 ft. Isolated showers
and tstms.
.TONIGHT...N to NE winds 10 to 20 kt, becoming NE 10 to 15 kt.
Seas 4 to 7 ft.
.TUE...NE winds 5 to 15 kt, becoming E to NE 5 to 10 kt. Seas
4 to 7 ft.
.TUE NIGHT...E winds 5 to 10 kt. Seas 4 to 8 ft.
.WED...E winds 5 to 10 kt, becoming 5 to 15 kt. Seas 5 to 9 ft.
.WED NIGHT...E winds 5 to 15 kt, increasing to 10 to 20 kt. Seas
8 to 13 ft.
.THU...E winds 15 to 25 kt, becoming NE 20 to 30 kt. Seas 13 to
21 ft.
.THU NIGHT...Tropical storm conditions possible.
.FRI...Tropical storm conditions possible.
.FRI NIGHT...N winds 15 to 25 kt, becoming N to NW 5 to 15 kt.
Seas 9 to 15 ft.

$$

ANZ810-182000-
South of New England between the Great South Channel and Montauk
Point to 1000 FM-
457 AM EDT Mon Aug 18 2025

.TODAY...NE winds 15 to 25 kt. Seas 4 to 8 ft. Isolated showers
and tstms.
.TONIGHT...E to NE winds 15 to 20 kt. Seas 5 to 8 ft.
.TUE...E winds 10 to 20 kt, becoming 10 to 15 kt. Seas 5 to
8 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 9 ft.
.WED...E winds 10 to 15 kt. Seas 7 to 11 ft.
.WED NIGHT...E winds 15 to 25 kt. Seas 9 to 16 ft.
.THU...E to NE winds 20 to 30 kt. Seas 14 to 24 ft.
.THU NIGHT...NE winds 25 to 30 kt. Seas 15 to 25 ft.
.FRI...N winds 20 to 30 kt. Seas 12 to 20 ft.
.FRI NIGHT...E to NE winds 5 to 15 kt, becoming variable less
than 5 kt. Seas 8 to 14 ft.

$$

ANZ815-182000-
South of Long Island between Montauk Point and Sandy Hook to
1000 FM-
457 AM EDT Mon Aug 18 2025

.TODAY...NE winds 20 to 30 kt. Seas 4 to 8 ft. Isolated showers
and tstms.
.TONIGHT...E winds 15 to 20 kt. Seas 5 to 9 ft.
.TUE...E winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas
5 to 8 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 9 ft.
.WED...E winds 10 to 15 kt. Seas 7 to 12 ft.
.WED NIGHT...E winds 15 to 25 kt. Seas 10 to 16 ft.
.THU...NE winds 20 to 30 kt. Seas 14 to 23 ft.
.THU NIGHT...NE winds 20 to 30 kt. Seas 14 to 24 ft.
.FRI...N to NE winds 15 to 25 kt. Seas 10 to 17 ft.
.FRI NIGHT...S to SE winds 5 to 15 kt, becoming S to SW. Seas
7 to 12 ft.

$$

.Forecaster Connelly. Ocean Prediction Center.