635
FZNT33 KWBC 190303
OFFN31

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
1103 PM 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.

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 over the region
will continue Tue, then shift E of the area Tue night through Wed
night. The eye of Hurricane Erin is expected to pass NE through
the Outer Mid-Atlantic Waters Thu night into Fri, remaining S of
the waters, then move farther away from the area Fri night into
Sat. Tropical storm conditions are expected to remain near and S
of Georges Bank. 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 Fri night. A high pressure ridge will
build across the waters late Fri and Fri night and continue into
Sat 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...N to NE winds 10 to 20 kt, becoming NE 5 to 15 kt.
Seas 3 to 5 ft.
.TUE...NE winds 5 to 15 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...SE winds less than 10 kt. Seas 3 to 6 ft.
.WED NIGHT...SE winds less than 10 kt, becoming E. Seas 4 to
8 ft.
.THU...E winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 6 to
11 ft.
.THU NIGHT...NE winds 20 to 30 kt. Seas 10 to 17 ft.
.FRI...NE winds 20 to 30 kt. Seas 11 to 18 ft.
.FRI NIGHT...N to NE winds 15 to 25 kt. Seas 9 to 16 ft.
.SAT...N winds 10 to 20 kt, becoming E to SE 5 to 10 kt. Seas
7 to 12 ft.
.SAT NIGHT...S winds 5 to 15 kt, increasing to 10 to 20 kt. Seas
6 to 10 ft.

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

...TROPICAL STORM CONDITIONS POSSIBLE FRI...

.TONIGHT...NE winds 10 to 20 kt. Seas 4 to 7 ft.
.TUE...E to NE winds 5 to 15 kt. Seas 4 to 7 ft.
.TUE NIGHT...E winds 5 to 10 kt, becoming E to SE 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
8 to 14 ft.
.THU...E to NE winds 20 to 30 kt. Seas 12 to 21 ft.
.THU NIGHT...NE winds 20 to 30 kt. Seas 16 to 28 ft.
.FRI...Tropical storm conditions possible.
.FRI NIGHT...N winds 20 to 30 kt. Seas 14 to 23 ft.
.SAT...N winds 20 to 30 kt. Seas 10 to 17 ft.
.SAT NIGHT...E to NE winds 5 to 15 kt, becoming S. Seas 8 to
14 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...E to NE winds 10 to 20 kt. Seas 4 to 8 ft.
.TUE...E winds 10 to 20 kt, becoming 10 to 15 kt. Seas 4 to
8 ft.
.TUE NIGHT...E winds 5 to 15 kt. Seas 5 to 9 ft.
.WED...E winds 10 to 15 kt. Seas 6 to 11 ft. Chance of showers.
.WED NIGHT...E winds 10 to 15 kt, increasing to 15 to 20 kt.
Seas 10 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 13 to 28 ft.
.FRI...N to NE winds 20 to 30 kt. Seas 15 to 27 ft.
.FRI NIGHT...N to NE winds 20 to 30 kt. Seas 12 to 20 ft.
.SAT...N winds 15 to 25 kt, becoming E to NE 5 to 15 kt. Seas
8 to 14 ft.
.SAT NIGHT...S to SE winds 5 to 15 kt. Seas 6 to 11 ft.

.Forecaster Connelly. Ocean Prediction Center.