High Frequency Voice Broadcast (New England)

FZNT33 KWBC 132058
OFFN31

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
458 PM EDT Wed Aug 13 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 cold front will approach the
region tonight, then move E across the waters Thu and Thu night,
then weaken Fri. High pressure will build SE across the region
Fri through Sat night, then shift SE of the area Sun. Another
cold front will slowly move across the waters Sun night into Mon
night.  

Gulf of Maine to the Hague Line

.TONIGHT...S to SW winds 10 to 20 kt. Seas 3 to 5 ft. Areas of
fog with vsby 1 nm or less early. Slight chance of tstms with
vsby 1 nm or less. 
.THU...S to SW winds 5 to 15 kt. Seas 3 to 4 ft. Chance of rain
with vsby 1 nm or less. 
.THU NIGHT...Variable winds less than 10 kt, becoming NE 10 to
20 kt. Seas 3 to 4 ft. Rain with vsby 1 nm or less. 
.FRI...NE winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas
3 to 4 ft. 
.FRI NIGHT...E to NE winds less than 10 kt, increasing to 5 to
15 kt. Seas 3 to 4 ft. 
.SAT...E to SE winds 5 to 10 kt, becoming S. Seas 3 to 4 ft. 
.SAT NIGHT...S to SW winds 5 to 15 kt. Seas 3 to 4 ft. 
.SUN...SW winds 10 to 20 kt. Seas 3 to 4 ft. 
.SUN NIGHT...SW winds 15 to 20 kt, becoming N. Seas 3 to 4 ft. 
.MON...N winds 15 to 20 kt, diminishing to 5 to 15 kt. Seas 3 to
5 ft. 
.MON NIGHT...N 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

.TONIGHT...S to SW winds 10 to 20 kt. Seas 3 to 4 ft. Areas of
fog with vsby 1 nm or less. 
.THU...S winds 5 to 15 kt. Seas 3 to 4 ft. Chance of rain with
vsby 1 nm or less. 
.THU NIGHT...S winds less than 10 kt, becoming NE. Seas 3 to
4 ft. Rain with vsby 1 nm or less. 
.FRI...NE winds 5 to 15 kt. Seas 3 to 4 ft. Areas of fog with
vsby 1 nm or less. 
.FRI NIGHT...NE winds 5 to 15 kt. Seas 3 to 4 ft.
.SAT...E to NE winds 5 to 15 kt. Seas 3 to 5 ft. 
.SAT NIGHT...E to NE winds 5 to 15 kt, becoming variable. Seas
3 to 5 ft. 
.SUN...Variable winds 5 to 15 kt, becoming SW 10 to 20 kt. Seas
3 to 4 ft. 
.SUN NIGHT...W to SW winds 10 to 20 kt. Seas 3 to 4 ft. 
.MON...N to NW winds 10 to 20 kt, becoming N 10 to 15 kt. Seas
4 to 5 ft. 
.MON NIGHT...N to NE winds 10 to 15 kt. 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...SW winds 10 to 15 kt, becoming S to SW 5 to 10 kt.
Seas 3 to 4 ft. Isolated tstms with vsby 1 nm or less. 
.THU...S winds less than 10 kt. Seas 3 to 4 ft. Rain with vsby
1 nm or less. 
.THU NIGHT...Variable winds less than 5 kt, becoming N to NE.
Seas 3 to 4 ft. Rain with vsby 1 nm or less. 
.FRI...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI NIGHT...E to NE winds 5 to 15 kt. Seas 3 to 4 ft. 
.SAT...E to NE winds 5 to 15 kt. Seas 3 to 4 ft. 
.SAT NIGHT...E winds 5 to 15 kt, becoming E to SE 5 to 10 kt.
Seas 3 to 4 ft. 
.SUN...Variable winds less than 10 kt, becoming SW. Seas 3 to
4 ft. 
.SUN NIGHT...W to SW winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON...N winds 10 to 15 kt, becoming NE 10 to 20 kt. Seas 3 to
4 ft. 
.MON NIGHT...E to NE winds 5 to 15 kt. Seas 3 to 5 ft. 

.Forecaster Holley. Ocean Prediction Center.