High Frequency Voice Broadcast (Mid Atlantic)

FZNT34 KWBC 232025
OFFN32

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
425 PM EDT Wed Jul 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...A stationary front will continue
across the southern and central waters tonight into Fri as a
series of weak low pressure centers track E along the front. The
front will then weaken and dissipate later Fri and Fri night.
High pressure over the northern portions this evening will shift
E of the area later tonight into Fri night while maintaining a
ridge axis across the region. A cold front will slowly move S
across the N waters Sat and Sat night, then stall across the area
Sun and Sun night as a series of low pressure centers track NE
along the boundary. Another cold front will move SE over the far
NW waters Sun night, then continue moving slowly SE over the area
Mon and Mon night. 

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

.TONIGHT...E winds 5 to 10 kt, becoming S to SE 5 to 15 kt,
then, becoming S 5 to 10 kt. Seas 3 to 4 ft. Scattered showers. 
.THU...S to SW winds less than 10 kt, becoming S 10 to 20 kt.
Seas 3 to 4 ft. 
.THU NIGHT...SW winds 10 to 20 kt. Seas 3 to 4 ft. 
.FRI...SW winds 10 to 20 kt. Seas 3 to 5 ft. 
.FRI NIGHT...SW winds 10 to 20 kt, becoming W to NW 10 to 15 kt.
Seas 3 to 5 ft. 
.SAT...N to NE winds 5 to 15 kt. Seas 3 to 4 ft. 
.SAT NIGHT...E winds 5 to 10 kt, becoming SE. Seas 3 to 4 ft. 
.SUN...S to SE winds 5 to 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...S to SW winds 10 to 15 kt, becoming W to NW. Seas
3 to 4 ft. 
.MON...N winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 3 to
4 ft. 
.MON NIGHT...E to NE winds less than 10 kt, becoming W to SW.
Seas 3 to 4 ft. 

Baltimore Canyon to the Hague Line south of 1000 fm

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

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

.TONIGHT...E winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas
4 to 8 ft. Isolated showers and tstms. 
.THU...E to SE winds 5 to 15 kt. Seas 3 to 5 ft. Isolated
showers and tstms. 
.THU NIGHT...S to SE winds 5 to 15 kt, becoming S to SW. Seas
3 to 4 ft. 
.FRI...S to SW winds 5 to 15 kt. Seas 3 to 4 ft. Isolated
showers and tstms. 
.FRI NIGHT...S to SW winds 10 to 20 kt, becoming SW 5 to 15 kt.
Seas 3 to 4 ft. 
.SAT...S to SW winds 5 to 15 kt. Seas 3 to 4 ft. 
.SAT NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. 
.SUN...Variable winds less than 10 kt, becoming S to SW. Seas
3 to 4 ft. 
.SUN NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 ft.
.MON...N winds 5 to 15 kt, becoming W to SW. Seas 3 to 4 ft. 
.MON NIGHT...W to NW winds 5 to 15 kt, becoming variable. Seas
3 to 4 ft. 

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

.TONIGHT...E winds 15 to 25 kt. Seas 5 to 9 ft. Isolated showers
and tstms. 
.THU...Variable winds 5 to 15 kt. Seas 3 to 6 ft. Scattered
showers and tstms. 
.THU NIGHT...W winds 5 to 15 kt. Seas 3 to 4 ft. Isolated
showers and tstms. 
.FRI...W winds 5 to 15 kt. Seas 3 to 5 ft. Isolated showers and
tstms. 
.FRI NIGHT...W to NW winds 5 to 15 kt. Seas 3 to 4 ft. 
.SAT...W winds 5 to 15 kt, becoming W to SW. Seas 3 to 4 ft. 
.SAT NIGHT...W to SW winds less than 10 kt. Seas 3 to 4 ft. 
.SUN...W to SW winds less than 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 ft.
.MON...W to SW winds 5 to 15 kt. Seas 3 to 4 ft. 
.MON NIGHT...W winds 5 to 10 kt, becoming W to SW 5 to 15 kt.
Seas 3 to 4 ft. 

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

.TONIGHT...E winds 5 to 15 kt, becoming S to SW. Seas 3 to 6 ft.
Scattered showers and tstms. 
.THU...S to SW winds 5 to 15 kt, becoming 5 to 10 kt. Seas 3 to
5 ft. Scattered showers and tstms. 
.THU NIGHT...S to SW winds 5 to 15 kt, becoming W to SW. Seas
3 to 4 ft. 
.FRI...W winds 5 to 15 kt. Seas 3 to 4 ft. 
.FRI NIGHT...W to SW winds 5 to 15 kt. Seas 3 to 4 ft. 
.SAT...W to SW winds 5 to 15 kt. Seas 3 to 4 ft. 
.SAT NIGHT...W to SW winds 5 to 15 kt. Seas 3 to 4 ft. 
.SUN...W to SW winds less than 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 ft.
.MON...SW winds 5 to 15 kt. Seas 3 to 4 ft. 
.MON NIGHT...SW winds 5 to 10 kt, becoming 5 to 15 kt. Seas 3 to
4 ft. 

.Forecaster Kells. Ocean Prediction Center.