FZNT33 KWBC 122023
OFFN31

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
423 PM EDT Mon May 12 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 centered SE of
the waters will continue moving SE of the region tonight. A cold
front will move S over the waters later tonight into Tue. Another
high will build SE across the waters behind the front Tue
afternoon into Tue night, then gradually shift SE of the area
later Tue night into Wed night. A broad low pressure area will
develop SW of the area Tue into Wed over the Mid-Atlantic states,
with an associated warm front lifting N and approaching the
southern portions Wed night. Both the low and warm front will
lift NE across the waters Thu into Thu night while weakening. A
low pressure trough or weak cold front will approach the coast
Fri, then move NE across the waters later Fri through Sat. Low
pressure will track NE across the waters Sat night. 

Gulf of Maine to the Hague Line

.TONIGHT...W to SW winds 10 to 20 kt, becoming N 5 to 15 kt.
Seas 3 to 5 ft. 
.TUE...E to NE winds 5 to 15 kt, becoming E. Seas 3 to 4 ft. 
.TUE NIGHT...S to SE winds 5 to 10 kt. Seas 3 to 4 ft. 
.WED...S to SE winds 5 to 10 kt. Seas 3 to 4 ft. 
.WED NIGHT...S to SW winds 10 to 15 kt, becoming S 5 to 10 kt.
Seas 3 to 4 ft. 
.THU...S to SE winds 5 to 15 kt. Seas 3 to 5 ft. 
.THU NIGHT...S winds 5 to 15 kt, becoming SW. Seas 3 to 5 ft. 
.FRI...Variable winds less than 10 kt. Seas 3 to 4 ft. 
.FRI NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT...E to SE winds 5 to 15 kt. Seas 3 to 4 ft. 
.SAT NIGHT...E 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

.TONIGHT...SW winds 10 to 20 kt, becoming W 5 to 15 kt. Seas
3 to 5 ft. 
.TUE...E to NE winds 5 to 15 kt, becoming E 5 to 10 kt. Seas
3 to 4 ft. 
.TUE NIGHT...E winds 5 to 10 kt, becoming SE 10 to 15 kt. Seas
3 to 4 ft. Chance of showers. 
.WED...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.WED NIGHT...S to SE winds 10 to 15 kt, becoming 10 to 20 kt.
Seas 3 to 6 ft. 
.THU...S winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 4 to
7 ft. 
.THU NIGHT...S winds 5 to 15 kt, becoming S to SW 5 to 10 kt.
Seas 3 to 6 ft. 
.FRI...S to SW winds less than 10 kt. Seas 3 to 5 ft. 
.FRI NIGHT...S winds less than 10 kt, becoming S to SE. Seas
3 to 4 ft. 
.SAT...S to SE winds 5 to 15 kt, becoming variable. Seas 3 to
4 ft. 
.SAT NIGHT...Variable winds less than 10 kt, becoming E to SE.
Seas 3 to 5 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 15 kt, becoming W to SW 5 to
15 kt. Seas 3 to 4 ft. 
.TUE...Variable winds less than 10 kt, becoming E. Seas 3 to
4 ft. Chance of showers. 
.TUE NIGHT...SE winds 10 to 15 kt, becoming E to SE 10 to 20 kt.
Seas 3 to 6 ft. Chance of showers. 
.WED...SE winds 15 to 25 kt. Seas 5 to 8 ft. Scattered showers
with vsby 1 nm or less. 
.WED NIGHT...SE winds 10 to 20 kt. Seas 4 to 8 ft. 
.THU...S winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 4 to
7 ft. 
.THU NIGHT...S winds 5 to 10 kt, becoming SW. Seas 3 to 6 ft. 
.FRI...S to SW winds 5 to 10 kt. Seas 3 to 5 ft. 
.FRI NIGHT...S to SW winds less than 10 kt. Seas 3 to 4 ft. 
.SAT...Variable winds less than 10 kt, becoming S to SW. Seas
3 to 4 ft. 
.SAT NIGHT...S to SW winds 5 to 15 kt, becoming W to SW. Seas
3 to 6 ft. 

.Forecaster Joseph. Ocean Prediction Center.