High Frequency Voice Broadcast (Mid Atlantic)

FZNT34 KWBC 240253
OFFN32

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
1053 PM EDT Sat Aug 23 2025

West central North Atlantic continental shelf and slope waters
beyond 20 nm to 250 nm offshore, including south of Georges Bank
from 1000 fm to 250 nm offshore.

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 MID ATLC WATERS...High pressure will remain over
the central and N portions tonight, while a stationary front
persists across the far S waters. Weak low pressure will persist
along the stalled front off the Georgia coast tonight, then lift
NE while gradually strengthening over the central and N portions
Sun and Sun night as the high shifts E and NE. A cold front will
slowly approach from the NW Sun night into Mon, gradually push
across the waters Mon night into Tue night, then stall across the
outer and S portions Wed into Thu night. High pressure will build
SE across the waters behind the front Tue through Thu night.  

Hudson Canyon to Baltimore Canyon including the waters west of
39.3N 71.9W...SW to 37.7N 72.9W

.TONIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas
5 to 9 ft. 
.SUN...S winds 5 to 10 kt, becoming 5 to 15 kt. Seas subsiding to 
3 to 6 ft. Isolated showers. 
.SUN NIGHT...S to SE winds 5 to 15 kt, becoming N to NW. Seas
3 to 6 ft. Scattered showers and tstms. 
.MON...W to NW winds 5 to 10 kt, becoming SW 5 to 15 kt. Seas
3 to 6 ft. Chance of showers and tstms. 
.MON NIGHT...W winds 5 to 15 kt, becoming NW. Seas 3 to 5 ft. 
.TUE...N to NW winds 5 to 10 kt, becoming W to SW 5 to 15 kt.
Seas 3 to 4 ft. 
.TUE NIGHT...W to NW winds 5 to 15 kt. Seas 3 to 4 ft. 
.WED...N to NW winds 5 to 15 kt, becoming NW 5 to 10 kt. Seas
3 to 4 ft. 
.WED NIGHT...W to NW winds 5 to 15 kt, becoming N. Seas 3 to
4 ft. 
.THU...N to NW winds less than 10 kt, becoming variable. Seas
3 to 4 ft. 
.THU NIGHT...S to SW winds 5 to 15 kt, becoming SW 5 to 10 kt.
Seas 3 to 4 ft. 

Baltimore Canyon to the Hague Line south of 1000 fm

.TONIGHT...S to SE winds 5 to 15 kt. Seas 7 to 12 ft. 
.SUN...S to SE winds 10 to 20 kt. Seas subsiding to 5 to 9 ft. 
Isolated showers. 
.SUN NIGHT...S winds increasing to 20 to 30 kt. Seas 6 to 10 ft.
Scattered showers and tstms. 
.MON...S to SW winds 15 to 25 kt. Seas 5 to 9 ft. Scattered
showers and tstms. 
.MON NIGHT...W winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 4 to 8 ft. 
.TUE...W to NW winds 5 to 15 kt. Seas 3 to 6 ft. 
.TUE NIGHT...W to NW winds 5 to 15 kt. Seas 3 to 5 ft. 
.WED...W to NW winds less than 10 kt, increasing to 5 to 15 kt.
Seas 3 to 5 ft. 
.WED NIGHT...N to NW winds 5 to 15 kt. Seas 3 to 4 ft. 
.THU...N winds less than 10 kt, becoming variable. Seas 3 to
4 ft. 
.THU NIGHT...W to SW winds 5 to 10 kt. Seas 3 to 4 ft. 

Baltimore Canyon to Hatteras Canyon out to 36N 70W to 34N 71W

.TONIGHT...S to SE winds 5 to 15 kt. Seas 7 to 13 ft. Scattered
showers and tstms. 
.SUN...S to SE winds 10 to 20 kt. Seas subsiding to 5 to 9 ft. 
Scattered showers and tstms. 
.SUN NIGHT...S to SW winds 15 to 25 kt. Seas 5 to 9 ft.
Scattered showers and tstms. 
.MON...W to SW winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 4 to 8 ft. Scattered showers and tstms. 
.MON NIGHT...W to SW winds 5 to 15 kt, becoming N to NW. Seas
3 to 6 ft. 
.TUE...Variable winds 5 to 15 kt, becoming W to SW. Seas 3 to
5 ft. 
.TUE NIGHT...Variable winds less than 10 kt, becoming N to NE.
Seas 3 to 4 ft. 
.WED...N to NE winds 5 to 15 kt. Seas 3 to 4 ft. 
.WED NIGHT...N to NE winds 10 to 20 kt, diminishing to 5 to
15 kt. Seas 3 to 4 ft. 
.THU...N to NE winds 5 to 15 kt. Seas 3 to 4 ft. 
.THU NIGHT...E to NE winds 5 to 10 kt. Seas 3 to 4 ft. 

Hatteras Canyon to Cape Fear out to 34N 71W to 32N 73W

.TONIGHT...SE winds 10 to 20 kt. Seas 7 to 12 ft. Scattered
showers and tstms. 
.SUN...S to SE winds 10 to 20 kt, becoming S to SW. Seas
subsiding to 5 to 9 ft. Scattered showers and tstms. 
.SUN NIGHT...S to SW winds 10 to 20 kt, becoming W to SW. Seas
4 to 8 ft. Scattered showers and tstms. 
.MON...W to SW winds 10 to 20 kt. Seas 4 to 8 ft. Scattered
showers and tstms. 
.MON NIGHT...SW winds 10 to 20 kt, becoming W to SW 5 to 15 kt.
Seas 4 to 7 ft. 
.TUE...W to SW winds less than 10 kt. Seas 3 to 6 ft. 
.TUE NIGHT...W to SW winds less than 10 kt, becoming variable.
Seas 3 to 4 ft. 
.WED...N to NE winds 5 to 15 kt, increasing to 10 to 20 kt. Seas
3 to 4 ft. 
.WED NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.THU...NE winds 10 to 20 kt, becoming E to NE 5 to 15 kt. Seas
3 to 5 ft. 
.THU NIGHT...E to NE winds 5 to 15 kt, becoming E 5 to 10 kt.
Seas 3 to 6 ft. 

Cape Fear to 31N out to 32N 73W to 31N 74W

.TONIGHT...S to SE winds 10 to 20 kt. Seas 6 to 10 ft. Scattered
showers and tstms. 
.SUN...SW winds 10 to 20 kt. Seas 5 to 9 ft. Scattered showers
and tstms. 
.SUN NIGHT...W to SW winds 10 to 20 kt. Seas 5 to 8 ft.
Scattered showers and tstms. 
.MON...W to SW winds 10 to 20 kt. Seas 4 to 8 ft. Scattered
showers and tstms. 
.MON NIGHT...SW winds 10 to 20 kt, becoming W to SW 5 to 15 kt.
Seas 4 to 7 ft. 
.TUE...Variable winds 5 to 15 kt, diminishing to less than
10 kt. Seas 3 to 6 ft. 
.TUE NIGHT...W to SW winds 5 to 15 kt. Seas 3 to 4 ft. 
.WED...N to NE winds 5 to 15 kt. Seas 3 to 4 ft. 
.WED NIGHT...NE winds 5 to 15 kt, increasing to 10 to 20 kt.
Seas 3 to 5 ft. 
.THU...E to NE winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 3 to 5 ft. 
.THU NIGHT...E to NE winds 5 to 15 kt. Seas 3 to 6 ft. 

.Forecaster Mills. Ocean Prediction Center.