755
FZNT34 KWBC 220316
OFFN32

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
1116 PM EDT Thu Aug 21 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...The center of large Hurricane
Erin will track along but just S of the central waters late
tonight through Fri. Erin will then turn NE and move away from
the waters Fri and Fri night into the weekend. Significant S to
SE swell will continue through Fri night while gradually backing
to the E. A high pressure area will build over the waters Fri
night into Sat night while a stationary front forms over the far
S waters. Weak low pressure will form along the front off the
South Carolina coast Sat night, then lift NE and begin to
strengthen some while passing through the central and N waters
Sun into early Mon while the area of high pressure to the N
shifts E of the region. A cold front will approach the area from
the W late Sun night, then move E across the area Mon and Mon
night while the developing low passes N and NE of the area.
Another cold front will move over the region Tue and Tue night.
For more information on Hurricane Erin, please closely monitor
the latest forecasts from the National Hurricane Center.

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

.TONIGHT...N winds 20 to 30 kt. Seas 14 to 24 ft. Chance of
showers.
.FRI...N winds 20 to 30 kt, becoming N to NE 10 to 20 kt. Seas
12 to 20 ft.
.FRI NIGHT...E to NE winds 5 to 15 kt, becoming W to SW. Seas
8 to 14 ft.
.SAT...N to NE winds less than 10 kt, becoming S to SE. Seas
5 to 9 ft.
.SAT NIGHT...S to SE winds 10 to 15 kt. Seas 4 to 8 ft.
.SUN...S winds less than 10 kt, increasing to 10 to 15 kt. Seas
4 to 7 ft.
.SUN NIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt.
Seas 3 to 6 ft.
.MON...Variable winds less than 10 kt, becoming W to SW. Seas
3 to 5 ft.
.MON NIGHT...W winds 5 to 15 kt, increasing to 10 to 20 kt. Seas
3 to 5 ft.
.TUE...W to NW winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...W winds 10 to 20 kt, becoming NW 10 to 15 kt. Seas
3 to 5 ft.

Baltimore Canyon to the Hague Line south of 1000 fm

...HURRICANE WARNING...

.TONIGHT...E to NE winds 60 to 75 kt, becoming N to NE. Seas
34 to 49 ft. Showers and tstms.
.FRI...N winds 45 to 55 kt, becoming N to NW 25 to 35 kt. Seas
27 to 42 ft. Tstms and scattered showers.
.FRI NIGHT...N to NW winds 25 to 35 kt, becoming N to NE 15 to
25 kt. Seas 16 to 31 ft.
.SAT...N to NE winds 10 to 20 kt, becoming E 5 to 15 kt. Seas
9 to 16 ft.
.SAT NIGHT...S to SE winds 5 to 15 kt. Seas 7 to 11 ft.
.SUN...SE winds 5 to 15 kt, becoming S. Seas 6 to 9 ft.
.SUN NIGHT...S winds 10 to 20 kt. Seas 5 to 8 ft.
.MON...S winds 15 to 25 kt. Seas 4 to 8 ft.
.MON NIGHT...W to SW winds 15 to 25 kt. Seas 4 to 8 ft.
.TUE...W winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 4 to
7 ft.
.TUE NIGHT...W winds 10 to 20 kt. Seas 4 to 6 ft.

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

.TONIGHT...N to NW winds 20 to 30 kt. Seas 22 to 37 ft. Chance
of showers and tstms.
.FRI...N winds 20 to 30 kt. Seas 14 to 24 ft. Chance of showers
and tstms.
.FRI NIGHT...N to NE winds 10 to 20 kt, becoming E to NE 5 to
15 kt. Seas 10 to 17 ft.
.SAT...E to NE winds 5 to 15 kt. Seas 7 to 12 ft.
.SAT NIGHT...S to SE winds 5 to 15 kt. Seas 6 to 10 ft.
.SUN...S to SE winds 5 to 15 kt. Seas 4 to 8 ft.
.SUN NIGHT...SE winds 10 to 20 kt, becoming S. Seas 4 to 8 ft.
.MON...W to SW winds 10 to 20 kt. Seas 4 to 8 ft.
.MON NIGHT...W winds 5 to 15 kt, becoming W to NW 10 to 20 kt.
Seas 4 to 7 ft.
.TUE...W to NW winds 5 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...W to NW winds 5 to 15 kt. Seas 3 to 5 ft.

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

.TONIGHT...N to NW winds 20 to 30 kt. Seas 14 to 24 ft. Chance
of showers and tstms.
.FRI...N to NW winds 10 to 20 kt. Seas 11 to 19 ft. Chance of
showers and tstms.
.FRI NIGHT...N to NE winds 10 to 15 kt, becoming E to NE 5 to
10 kt. Seas 8 to 14 ft. Chance of showers and tstms.
.SAT...E winds 5 to 15 kt. Seas 6 to 11 ft. Scattered showers
and tstms.
.SAT NIGHT...E winds 10 to 15 kt, becoming SE 5 to 15 kt. Seas
5 to 9 ft.
.SUN...SE winds 10 to 15 kt, becoming 10 to 20 kt. Seas 4 to
8 ft.
.SUN NIGHT...S winds 10 to 20 kt, becoming SW. Seas 4 to 8 ft.
.MON...W to SW winds 10 to 20 kt. Seas 4 to 8 ft.
.MON NIGHT...W winds 10 to 20 kt, becoming 10 to 15 kt. Seas
4 to 8 ft.
.TUE...W to NW winds less than 10 kt. Seas 3 to 6 ft.
.TUE NIGHT...W to NW winds less than 10 kt, becoming variable.
Seas 3 to 4 ft.

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

.TONIGHT...N to NW winds 15 to 25 kt. Seas 10 to 17 ft.
Scattered showers and tstms.
.FRI...N to NE winds 5 to 15 kt, becoming E to NE. Seas 8 to
14 ft. Scattered showers and tstms.
.FRI NIGHT...E to NE winds 5 to 15 kt. Seas 7 to 12 ft.
Scattered showers and tstms.
.SAT...E winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 6 to
10 ft. Scattered showers and tstms.
.SAT NIGHT...E to SE winds 10 to 20 kt, becoming SE 5 to 15 kt.
Seas 5 to 9 ft.
.SUN...S to SE winds 5 to 15 kt, becoming W to SW. Seas 4 to
8 ft.
.SUN NIGHT...W to SW winds 10 to 20 kt. Seas 4 to 8 ft.
.MON...W to NW winds 10 to 20 kt, becoming W to SW. Seas 5 to
8 ft.
.MON NIGHT...W to SW winds 10 to 20 kt, becoming W 5 to 15 kt.
Seas 4 to 8 ft.
.TUE...N to NW winds less than 10 kt, becoming variable. Seas
3 to 6 ft.
.TUE NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft.

.Forecaster Byrd. Ocean Prediction Center.