295
FZNT33 KWBC 192051
OFFN31

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
451 PM EDT Tue Aug 19 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 gradually shift E of the area tonight through Wed night.
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. Long
period S swell from Hurricane Erin will continue through Thu
night before backing to the SE and E Fri night. A high pressure
ridge will move E across the waters Fri night and Sat, then shift
E of the area Sat night into Sun. A cold front will near the
region from the W by Sun 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...E winds less than 5 kt, becoming S to SE. Seas 3 to
5 ft.
.WED...SE winds less than 10 kt. Seas 3 to 6 ft.
.WED NIGHT...E to SE winds less than 10 kt. Seas 4 to 7 ft.
.THU...E winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 6 to
11 ft.
.THU NIGHT...E to NE winds 10 to 20 kt, becoming NE 20 to 30 kt.
Seas 10 to 17 ft.
.FRI...NE winds 20 to 30 kt. Seas 11 to 19 ft.
.FRI NIGHT...NE winds 10 to 20 kt, becoming N. Seas 10 to 17 ft.
.SAT...N to NE winds 10 to 20 kt, becoming S to SE. Seas 6 to
11 ft.
.SAT NIGHT...S winds 10 to 20 kt. Seas 5 to 9 ft.
.SUN...S winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT...S winds 15 to 20 kt. Seas 5 to 6 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 THU NIGHT...

.TONIGHT...E to NE winds 5 to 10 kt, becoming E to SE. Seas 4 to
7 ft.
.WED...E winds 5 to 15 kt. Seas 5 to 9 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 7 to 12 ft.
.THU...E winds 20 to 30 kt. Seas 12 to 21 ft. Showers and tstms.
.THU NIGHT...E to NE winds 30 to 40 kt. Seas 17 to 29 ft.
.FRI...N to NE winds 35 to 45 kt. Seas 14 to 29 ft.
.FRI NIGHT...N winds 25 to 35 kt, diminishing to 20 to 30 kt.
Seas 14 to 23 ft.
.SAT...N winds 15 to 25 kt, becoming E to SE 5 to 15 kt. Seas
9 to 16 ft.
.SAT NIGHT...S to SE winds 5 to 15 kt. Seas 6 to 11 ft.
.SUN...S winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 5 to
8 ft.
.SUN NIGHT...S winds 10 to 20 kt, becoming 10 to 15 kt. Seas
5 to 7 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

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

.TONIGHT...E winds 5 to 10 kt, increasing to 10 to 15 kt. Seas
5 to 8 ft.
.WED...E winds 10 to 15 kt, becoming 10 to 20 kt. Seas 6 to
10 ft. Chance of showers.
.WED NIGHT...E winds 15 to 25 kt. Seas 9 to 15 ft. Chance of
showers.
.THU...E winds 20 to 30 kt, becoming NE 25 to 30 kt. Seas 15 to
25 ft. Showers and tstms.
.THU NIGHT...E to NE winds 30 to 40 kt. Seas 14 to 29 ft.
.FRI...N to NE winds 30 to 40 kt, becoming N 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 to NE winds 15 to 25 kt, becoming E to SE 5 to 15 kt.
Seas 8 to 14 ft.
.SAT NIGHT...S winds 5 to 15 kt. Seas 6 to 10 ft.
.SUN...S winds 10 to 15 kt. Seas 4 to 8 ft.
.SUN NIGHT...S winds 10 to 15 kt. Seas 4 to 7 ft.

.Forecaster Holley. Ocean Prediction Center.