New England Continental Shelf

FZNT21 KWBC 201445
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
1045 AM EDT Tue May 20 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.

ANZ898-210215-
1045 AM EDT Tue May 20 2025

.SYNOPSIS FOR NEW ENGLAND WATERS...Broad low pressure E of the 
waters will gradually move SE today as a low pressure trough 
crosses the area. High pressure will build over the region later 
today, and continue tonight and Wed. Low pressure will move off 
the Mid-Atlantic coast Wed night, slowly move NE over the waters
Thu into Fri while strengthening, and then pass NE of the area 
Fri night as a low pressure trough extends SW across the area. 
The trough will move SE over the waters Sat and Sat night. 

$$

ANZ800-210215-
Gulf of Maine to the Hague Line-
1045 AM EDT Tue May 20 2025

...GALE FORCE WINDS POSSIBLE THU...

.TODAY...N to NE winds 15 to 25 kt. Seas 5 to 8 ft. Isolated
showers. 
.TONIGHT...NE winds 15 to 25 kt. Seas 4 to 8 ft. Isolated
showers. 
.WED...NE winds 10 to 20 kt, becoming E. Seas 3 to 6 ft.
Isolated showers. 
.WED NIGHT...E winds 5 to 15 kt, increasing to 15 to 25 kt. Seas
4 to 7 ft. 
.THU...E winds 15 to 25 kt, increasing to 25 to 35 kt. Seas 7 to
12 ft. 
.THU NIGHT...E winds 25 to 35 kt. Seas 10 to 16 ft.
.FRI...E winds 25 to 35 kt, becoming E to NE 10 to 20 kt. Seas
8 to 14 ft. 
.FRI NIGHT...W to NW winds 10 to 15 kt, diminishing to 5 to
10 kt. Seas 6 to 10 ft. 
.SAT...W to NW winds 5 to 10 kt, becoming N to NW. Seas 3 to
6 ft. 
.SAT NIGHT...W winds 5 to 10 kt, increasing to 10 to 15 kt. Seas
3 to 5 ft. 

$$

ANZ805-210215-
Georges Bank between Cape Cod and 68W north of 1000 FM-
1045 AM EDT Tue May 20 2025

...GALE FORCE WINDS POSSIBLE THU...

.TODAY...N winds 15 to 25 kt. Seas 5 to 8 ft. Isolated showers. 
.TONIGHT...N to NE winds 15 to 25 kt. Seas 5 to 8 ft. Isolated
showers. 
.WED...NE winds 10 to 15 kt, becoming E 10 to 20 kt. Seas 4 to
7 ft. Isolated showers. 
.WED NIGHT...E winds 15 to 25 kt. Seas 4 to 8 ft. 
.THU...E winds 25 to 30 kt, becoming 25 to 35 kt. Seas 7 to
13 ft. 
.THU NIGHT...E winds 25 to 35 kt. Seas 10 to 16 ft.
.FRI...W to SW winds 20 to 30 kt, becoming W 10 to 20 kt. Seas
8 to 14 ft. 
.FRI NIGHT...W winds 5 to 15 kt. Seas 6 to 10 ft. 
.SAT...W to SW winds 5 to 10 kt, becoming W 10 to 15 kt. Seas
4 to 6 ft. 
.SAT NIGHT...W to NW winds 5 to 15 kt. Seas 3 to 6 ft. 

$$

ANZ900-210215-
Georges Bank between 68W and the Hague Line-
1045 AM EDT Tue May 20 2025

...GALE FORCE WINDS POSSIBLE THU...

.TODAY...N winds 15 to 25 kt. Seas 6 to 9 ft. Isolated showers. 
.TONIGHT...N to NE winds 15 to 25 kt. Seas 5 to 9 ft. Isolated
showers. 
.WED...E to NE winds 10 to 20 kt. Seas 5 to 8 ft. Isolated
showers. 
.WED NIGHT...E winds 15 to 25 kt. Seas 5 to 8 ft. 
.THU...E winds 20 to 30 kt, increasing to 25 to 35 kt. Seas 6 to
11 ft. 
.THU NIGHT...E winds 25 to 35 kt. Seas 11 to 16 ft.
.FRI...SW winds 25 to 35 kt, becoming W 20 to 30 kt. Seas 10 to
14 ft. 
.FRI NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt.
Seas 7 to 11 ft. 
.SAT...W winds 5 to 10 kt. Seas 5 to 7 ft. 
.SAT NIGHT...W winds 10 to 20 kt, becoming 10 to 15 kt. Seas
4 to 6 ft. 

$$

ANZ810-210215-
South of New England between the Great South Channel and Montauk
Point to 1000 FM-
1045 AM EDT Tue May 20 2025

...GALE FORCE WINDS POSSIBLE THU...

.TODAY...N winds 15 to 25 kt. Seas 4 to 8 ft. 
.TONIGHT...N to NE winds 10 to 20 kt. Seas 4 to 7 ft. 
.WED...NE winds 10 to 20 kt, becoming E. Seas 3 to 6 ft.
Isolated showers. 
.WED NIGHT...E winds 15 to 25 kt. Seas 6 to 10 ft. Chance of
rain. 
.THU...E winds 25 to 35 kt. Seas 8 to 13 ft. 
.THU NIGHT...W to SW winds 25 to 35 kt. Seas 7 to 13 ft. 
.FRI...W winds 15 to 25 kt. Seas 7 to 12 ft. 
.FRI NIGHT...W winds 5 to 15 kt. Seas 4 to 8 ft. 
.SAT...W winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 4 to
7 ft. 
.SAT NIGHT...W to NW winds 10 to 20 kt, becoming 10 to 15 kt.
Seas 3 to 6 ft. 

$$

ANZ815-210215-
South of Long Island between Montauk Point and Sandy Hook to
1000 FM-
1045 AM EDT Tue May 20 2025

...GALE FORCE WINDS POSSIBLE THU...

.TODAY...N to NW winds 5 to 15 kt. Seas 3 to 6 ft. 
.TONIGHT...E to NE winds 5 to 15 kt. Seas 3 to 5 ft. 
.WED...E winds 15 to 25 kt. Seas 4 to 7 ft. Isolated showers. 
.WED NIGHT...E winds 20 to 30 kt. Seas 6 to 10 ft. Chance of
rain. 
.THU...E winds 25 to 35 kt. Seas 8 to 13 ft. 
.THU NIGHT...W to NW winds 25 to 35 kt, diminishing to 20 to
30 kt. Seas 7 to 12 ft. 
.FRI...W to NW winds 10 to 20 kt, becoming W 5 to 15 kt. Seas
6 to 10 ft. 
.FRI NIGHT...W winds 5 to 15 kt. Seas 3 to 6 ft. 
.SAT...W winds 10 to 20 kt. Seas 3 to 6 ft. 
.SAT NIGHT...W to NW winds 10 to 20 kt. Seas 3 to 6 ft. 

$$

.Forecaster Collins. Ocean Prediction Center.