New England Continental Shelf

FZNT21 KWBC 180828
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
428 AM EDT Sat Oct 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.

ANZ898-182030-
428 AM EDT Sat Oct 18 2025

.SYNOPSIS FOR NEW ENGLAND WATERS...Strong low pressure to the SE
of the area will slowly move well E of the region today and 
tonight as high pressure gradually builds E over the area. The 
high will move E over the waters Sun, then shift E of the region 
Sun night as a cold front moves E over the W waters. The front 
will continue moving E across the area Mon and Mon night as low 
pressure tracks NE along the coast while pulling a low pressure 
trough over the area into Tue. Another cold front will move over 
the waters Tue night into Wed night as low pressure tracks NE 
along the coast.

$$

ANZ800-182030-
Gulf of Maine to the Hague Line-
428 AM EDT Sat Oct 18 2025

.TODAY...N winds 20 to 30 kt, diminishing to 10 to 20 kt. Seas
6 to 11 ft. 
.TONIGHT...N to NW winds 5 to 15 kt, becoming W to NW 5 to
10 kt. Seas 5 to 9 ft. 
.SUN...S winds less than 10 kt, increasing to 5 to 15 kt. Seas
4 to 7 ft. 
.SUN NIGHT...S to SE winds 10 to 20 kt. Seas 3 to 6 ft. 
.MON...SE winds 20 to 30 kt. Seas 5 to 9 ft. 
.MON NIGHT...S to SE winds 15 to 25 kt, becoming S to SW 10 to
20 kt. Seas 5 to 9 ft. 
.TUE...SW winds 10 to 20 kt. Seas 4 to 8 ft. 
.TUE NIGHT...SW winds 10 to 15 kt, becoming S. Seas 4 to 7 ft. 
.WED...S to SE winds 10 to 15 kt, becoming 10 to 20 kt. Seas
4 to 6 ft. 
.WED NIGHT...S winds 10 to 20 kt, becoming W to SW 15 to 25 kt.
Seas 4 to 7 ft. 

$$

ANZ805-182030-
Georges Bank between Cape Cod and 68W north of 1000 FM-
428 AM EDT Sat Oct 18 2025

.TODAY...N winds 20 to 30 kt. Seas 8 to 14 ft. 
.TONIGHT...N winds 5 to 15 kt, becoming N to NW. Seas 6 to
10 ft. 
.SUN...Variable winds less than 10 kt, becoming S. Seas 5 to
8 ft. 
.SUN NIGHT...S to SE winds 5 to 15 kt, becoming SE 10 to 20 kt.
Seas 5 to 6 ft. 
.MON...SE winds 20 to 30 kt. Seas 6 to 10 ft. 
.MON NIGHT...W to SW winds 15 to 25 kt. Seas 6 to 11 ft. 
.TUE...W to SW winds 10 to 20 kt. Seas 6 to 10 ft. 
.TUE NIGHT...SW winds 10 to 15 kt, becoming S 5 to 15 kt. Seas
4 to 7 ft. 
.WED...S winds 15 to 20 kt. Seas 4 to 7 ft. 
.WED NIGHT...SW winds 15 to 20 kt, becoming W 15 to 25 kt. Seas
5 to 8 ft. 

$$

ANZ900-182030-
Georges Bank between 68W and the Hague Line-
428 AM EDT Sat Oct 18 2025

.TODAY...N winds 20 to 30 kt. Seas 9 to 15 ft. 
.TONIGHT...N winds 15 to 25 kt. Seas 7 to 12 ft. 
.SUN...N winds 5 to 15 kt, becoming variable. Seas 5 to 9 ft. 
.SUN NIGHT...SE winds 5 to 15 kt. Seas 5 to 7 ft.
.MON...SE winds 15 to 25 kt. Seas 5 to 9 ft. 
.MON NIGHT...S to SE winds 15 to 25 kt, becoming W to SW 10 to
20 kt. Seas 7 to 11 ft. 
.TUE...W to SW winds 15 to 20 kt. Seas 8 to 10 ft. 
.TUE NIGHT...SW winds 10 to 15 kt, becoming S 5 to 15 kt. Seas
5 to 8 ft. 
.WED...S winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 5 to
7 ft. 
.WED NIGHT...S to SW winds 15 to 20 kt, becoming W. Seas 6 to
8 ft. 

$$

ANZ810-182030-
South of New England between the Great South Channel and Montauk
Point to 1000 FM-
428 AM EDT Sat Oct 18 2025

.TODAY...N winds 15 to 25 kt. Seas 8 to 13 ft. 
.TONIGHT...Variable winds 5 to 15 kt, diminishing to less than
10 kt. Seas 5 to 9 ft. 
.SUN...S winds 5 to 15 kt. Seas 4 to 7 ft. 
.SUN NIGHT...S to SE winds 15 to 25 kt. Seas 5 to 7 ft. 
.MON...SE winds 20 to 30 kt, becoming S to SW. Seas 7 to 11 ft. 
.MON NIGHT...W winds 15 to 25 kt. Seas 7 to 11 ft. 
.TUE...W winds 10 to 20 kt. Seas 5 to 9 ft. 
.TUE NIGHT...SW winds 10 to 15 kt, becoming S. Seas 4 to 6 ft. 
.WED...S to SW winds 15 to 20 kt. Seas 5 to 7 ft. 
.WED NIGHT...W winds 15 to 25 kt. Seas 6 to 8 ft. 

$$

ANZ815-182030-
South of Long Island between Montauk Point and Sandy Hook to
1000 FM-
428 AM EDT Sat Oct 18 2025

.TODAY...N winds 5 to 15 kt, becoming variable. Seas 5 to 9 ft. 
.TONIGHT...Variable winds less than 10 kt, becoming S. Seas 4 to
7 ft. 
.SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 4 to
6 ft. 
.SUN NIGHT...S winds 20 to 30 kt. Seas 5 to 9 ft. Scattered
showers. 
.MON...S to SW winds 20 to 30 kt, becoming W to SW. Seas 7 to
11 ft. 
.MON NIGHT...W winds 20 to 30 kt, diminishing to 15 to 20 kt.
Seas 6 to 11 ft. 
.TUE...W to SW winds 10 to 20 kt. Seas 4 to 8 ft. 
.TUE NIGHT...S winds 10 to 20 kt. Seas 4 to 6 ft. 
.WED...S winds 15 to 20 kt, becoming W. Seas 4 to 7 ft. 
.WED NIGHT...W winds 20 to 25 kt. Seas 4 to 8 ft. 

$$

.Forecaster Kells. Ocean Prediction Center.