878
FZNT33 KWBC 192025
OFFN31

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
425 PM EDT Mon May 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...Broad low pressure over Nova
Scotia will gradually move SE tonight and early Tue, pushing a
surface trough across the waters. High pressure builds in later
Tue, continuing through Wed. Low pressure moves off of the mid-
Atlantic coast Wed night, slowly moving N to off of the New
England coast by Thu night while strengthening. The low should
continue to move NE into the Gulf of Maine Fri, and then into SE
Canada Fri night with a surface trough extending SW from the low
across the area. Since the low will be slow to move E, the
surface trough will continue over the waters Sat and Sat night.

Gulf of Maine to the Hague Line

...GALE FORCE WINDS POSSIBLE THU...

.TONIGHT...NW winds 20 to 30 kt, becoming N 15 to 25 kt. Seas
4 to 7 ft. Numerous showers.
.TUE...N to NE winds 15 to 25 kt. Seas 4 to 7 ft. Isolated
showers.
.TUE NIGHT...NE winds 15 to 25 kt. Seas 4 to 7 ft. Isolated
showers.
.WED...NE winds 10 to 20 kt, becoming E. Seas 3 to 5 ft.
Isolated showers.
.WED NIGHT...E winds 15 to 25 kt. Seas 4 to 7 ft.
.THU...E winds 15 to 25 kt, increasing to 25 to 35 kt. Seas 7 to
12 ft.
.THU NIGHT...E to NE winds 30 to 40 kt. Seas 10 to 17 ft.
.FRI...N to NE winds 25 to 35 kt, becoming N 20 to 30 kt. Seas
9 to 15 ft.
.FRI NIGHT...N to NW winds 15 to 25 kt. Seas 7 to 11 ft.
.SAT...N winds 5 to 15 kt, becoming W to NW. Seas 3 to 6 ft.
.SAT NIGHT...W to NW winds 5 to 15 kt. Seas 3 to 4 ft.

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

...GALE FORCE WINDS POSSIBLE THU...

.TONIGHT...NW winds 20 to 30 kt. Seas 4 to 8 ft. Scattered
showers, becoming numerous.
.TUE...N to NW winds 20 to 30 kt. Seas 5 to 8 ft. Scattered
showers, becoming isolated.
.TUE NIGHT...N to NE winds 15 to 25 kt. Seas 5 to 8 ft. Isolated
showers.
.WED...NE winds 10 to 20 kt, becoming E. Seas 4 to 7 ft.
Isolated showers.
.WED NIGHT...E winds 15 to 25 kt. Seas 4 to 7 ft.
.THU...E winds 20 to 30 kt, increasing to 25 to 35 kt. Seas 8 to
13 ft.
.THU NIGHT...E to NE winds 30 to 40 kt. Seas 9 to 16 ft.
.FRI...Winds becoming W to SW 25 to 35 kt, then becoming W to
NW. Seas 10 to 18 ft.
.FRI NIGHT...W to NW winds 20 to 30 kt, becoming W 10 to 20 kt.
Seas 7 to 12 ft.
.SAT...W winds less than 10 kt, increasing to 5 to 15 kt. Seas
4 to 7 ft.
.SAT NIGHT...W to NW winds 5 to 15 kt, becoming W. Seas 3 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

...GALE FORCE WINDS POSSIBLE THU...

.TONIGHT...W to NW winds 10 to 20 kt, becoming N to NW 15 to
25 kt. Seas 4 to 7 ft.
.TUE...N winds 15 to 25 kt. Seas 4 to 7 ft.
.TUE NIGHT...N to NE winds 10 to 20 kt, becoming NE 5 to 15 kt.
Seas 3 to 6 ft.
.WED...E to NE winds 15 to 25 kt. Seas 4 to 7 ft. Chance of
rain.
.WED NIGHT...E winds 20 to 30 kt. Seas 5 to 9 ft.
.THU...E to NE winds 25 to 35 kt. Seas 8 to 14 ft.
.THU NIGHT...N to NW winds 25 to 35 kt, becoming W to SW. Seas
10 to 16 ft.
.FRI...N to NW winds 20 to 30 kt. Seas 8 to 14 ft.
.FRI NIGHT...NW winds 5 to 15 kt, becoming W to NW 10 to 20 kt.
Seas 5 to 9 ft.
.SAT...W to NW winds 10 to 20 kt. Seas 4 to 7 ft.
.SAT NIGHT...W to NW winds 5 to 15 kt, becoming NW 10 to 20 kt.
Seas 3 to 5 ft.

.Forecaster Figurskey. Ocean Prediction Center.