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FZNT33 KWBC 172049
OFFN31

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
449 PM EDT Sun Aug 17 2025

New England continental shelf and slope waters from 25 nm
offshore to the Hague Line, except to 1000 fm south of New
England.

Conditions given represent the highest within that period.

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.

.SYNOPSIS FOR NEW ENGLAND WATERS...High pressure just SE of the
area will weaken tonight. A cold front will slowly move S across
the waters tonight into early Mon, then pass S of the area late
Mon and Mon night 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 move N then NE
while passing to the S and SE of the waters Wed through Thu
night. Erin will move well E of the area Fri as high pressure
builds in across the region and moves SE of the waters by Fri
night. Long period S swell from Hurricane Erin will move into the
region Mon night into Tue, then continue through Thu night before
backing to the SE and E Thu through Fri night. For more
information on Hurricane Erin, please closely monitor the latest
forecasts from the National Hurricane Center.

Gulf of Maine to the Hague Line

.TONIGHT...S to SW winds 10 to 20 kt, becoming N to NE 15 to
25 kt. Seas 4 to 7 ft. Chance of tstms.
.MON...N to NE winds 15 to 25 kt. Seas 4 to 7 ft.
.MON NIGHT...N to NE winds 5 to 15 kt, becoming 5 to 10 kt. Seas
3 to 6 ft.
.TUE...NE winds 5 to 10 kt, becoming E. Seas 3 to 4 ft.
.TUE NIGHT...E to SE winds less than 10 kt, becoming S to SE.
Seas 3 to 5 ft.
.WED...E to SE winds less than 10 kt. Seas 4 to 7 ft.
.WED NIGHT...E winds less than 10 kt, increasing to 5 to 15 kt.
Seas 5 to 9 ft.
.THU...E to NE winds 10 to 20 kt. Seas 9 to 15 ft.
.THU NIGHT...NE winds 10 to 20 kt, becoming N. Seas 10 to 16 ft.
.FRI...N winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 8 to
14 ft.
.FRI NIGHT...W to SW winds 5 to 10 kt, increasing to 10 to
15 kt. Seas 4 to 8 ft.

Georges Bank...from the Northeast Channel to the Great South
Channel including waters east of Cape Cod...to the Hague Line

.TONIGHT...SW winds 10 to 20 kt, becoming N 15 to 25 kt. Seas
4 to 7 ft. Chance of tstms.
.MON...N to NE winds 15 to 25 kt. Seas 4 to 8 ft. Chance of
showers and slight chance of tstms.
.MON NIGHT...NE winds 10 to 20 kt, becoming 10 to 15 kt. Seas
4 to 8 ft.
.TUE...E to NE winds 5 to 15 kt. Seas 4 to 8 ft.
.TUE NIGHT...E winds 5 to 15 kt. Seas 5 to 9 ft.
.WED...E winds 5 to 15 kt. Seas 6 to 11 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 10 to 17 ft.
.THU...NE winds 20 to 30 kt. Seas 13 to 23 ft.
.THU NIGHT...N to NE winds 20 to 30 kt. Seas 15 to 25 ft.
.FRI...N winds 15 to 25 kt. Seas 11 to 18 ft.
.FRI NIGHT...N to NW winds less than 10 kt, becoming W to SW.
Seas 6 to 10 ft.

South of New England...from the Great South Channel to Hudson
Canyon including the waters south of Marthas Vineyard and
Nantucket Island...out to 1000 fm

.TONIGHT...S to SW winds 10 to 20 kt, becoming SW 10 to 15 kt,
then, becoming NE 15 to 25 kt. Seas 3 to 5 ft. Chance of tstms.
.MON...NE winds 20 to 30 kt. Seas 5 to 9 ft. Chance of showers
and slight chance of tstms.
.MON NIGHT...E to NE winds 15 to 25 kt. Seas 5 to 9 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 6 to 10 ft.
.WED...E winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 7 to
12 ft.
.WED NIGHT...E winds 15 to 20 kt, becoming NE 15 to 25 kt. Seas
11 to 18 ft.
.THU...NE winds 20 to 30 kt. Seas 13 to 23 ft.
.THU NIGHT...N to NE winds 20 to 30 kt. Seas 13 to 22 ft.
.FRI...N winds 15 to 25 kt, diminishing to 5 to 15 kt. Seas
10 to 16 ft.
.FRI NIGHT...Variable winds less than 10 kt, becoming S to SW.
Seas 5 to 9 ft.

.Forecaster Huffman. Ocean Prediction Center.