300
FZNT33 KWBC 172021
OFFN31

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
421 PM EDT Thu Apr 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...A surface trough will cross
the waters tonight and move E of the area by Fri. High pressure
will move E from the Virginia Capes tonight, extending a ridge N
across the waters through Fri. The ridge will move SE of the area
late Fri ahead of a warm front lifting NE across the region Fri
night into Sat. A cold front will approach the New England coast
Sat, move into the Gulf of Maine Sat night, then pass SE of the
waters Sun. High pressure will build into the area Sun night and
Mon before moving E of the region Mon night. An area of low
pressure will develop along the New England coast Mon night and
move NE into the Gulf of Maine pulling a cold front across the
waters Tue and then E of the area Tue night. A secondary surface
trough will cross the waters Tue night.

Gulf of Maine to the Hague Line

.TONIGHT...W winds 10 to 20 kt, becoming NW 10 to 15 kt, then,
becoming W. Seas 3 to 6 ft.
.FRI...W winds 5 to 15 kt, becoming S to SW 10 to 20 kt. Seas
3 to 4 ft.
.FRI NIGHT...SW winds 15 to 25 kt. Seas 4 to 7 ft.
.SAT...SW winds 20 to 30 kt. Seas 6 to 10 ft.
.SAT NIGHT...SW winds 15 to 25 kt, becoming W 15 to 20 kt. Seas
6 to 10 ft.
.SUN...W to NW winds 15 to 25 kt. Seas 5 to 9 ft.
.SUN NIGHT...NW winds 15 to 25 kt. Seas 5 to 9 ft.
.MON...NW winds 5 to 15 kt, becoming W to SW. Seas 3 to 6 ft.
.MON NIGHT...S to SW winds 5 to 15 kt. Seas 3 to 4 ft.
.TUE...S to SE winds 10 to 20 kt. Seas 3 to 5 ft.
.TUE NIGHT...W to SW winds 5 to 15 kt, becoming NW. Seas 3 to
6 ft.

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

.TONIGHT...W winds 10 to 20 kt, becoming W to NW 5 to 15 kt.
Seas 4 to 7 ft.
.FRI...W to SW winds less than 10 kt, becoming SW 10 to 20 kt.
Seas 3 to 4 ft.
.FRI NIGHT...SW winds 15 to 25 kt. Seas 4 to 7 ft.
.SAT...SW winds 25 to 30 kt. Seas 6 to 10 ft.
.SAT NIGHT...SW winds 20 to 25 kt, becoming W 15 to 25 kt. Seas
6 to 11 ft.
.SUN...NW winds 15 to 25 kt. Seas 6 to 10 ft.
.SUN NIGHT...NW winds 15 to 25 kt. Seas 6 to 10 ft.
.MON...N to NW winds 10 to 20 kt, becoming variable 5 to 15 kt.
Seas 4 to 7 ft.
.MON NIGHT...S to SW winds less than 10 kt, becoming S. Seas
3 to 4 ft.
.TUE...S winds 15 to 25 kt. Seas 3 to 6 ft.
.TUE NIGHT...W to SW winds 10 to 20 kt, becoming W to NW 5 to
15 kt. Seas 4 to 6 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...W winds 10 to 20 kt, becoming W to NW 5 to 15 kt.
Seas 3 to 6 ft.
.FRI...SW winds 5 to 10 kt, becoming S to SW 10 to 20 kt. Seas
3 to 4 ft.
.FRI NIGHT...S winds 15 to 25 kt, becoming SW 20 to 25 kt. Seas
4 to 7 ft.
.SAT...SW winds 20 to 30 kt. Seas 6 to 10 ft.
.SAT NIGHT...W to SW winds 15 to 25 kt. Seas 6 to 10 ft.
.SUN...NW winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas
4 to 8 ft.
.SUN NIGHT...N to NW winds 5 to 15 kt. Seas 3 to 6 ft.
.MON...E to NE winds less than 10 kt, becoming S to SE. Seas
3 to 4 ft.
.MON NIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft.
.TUE...S to SW winds 10 to 20 kt. Seas 3 to 5 ft.
.TUE NIGHT...W winds 5 to 15 kt, becoming NW. Seas 3 to 5 ft.

.Forecaster Huffman. Ocean Prediction Center.