957
FZNT34 KWBC 200300
OFFN32

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
1100 PM EDT Tue Aug 19 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 persist
across the central waters tonight, with high pressure over the N
waters to the N of the front. The front and high pressure will
lift NE Wed as Hurricane Erin approaches the waters from the S.
Hurricane Erin is expected to move N into the outer S waters late
Wed, then continue N and NE through the outer S and central
waters Wed night and Thu. It will then turn more NE and move
through the Outer Mid-Atlantic Waters Thu night through Fri
night. Long period SE to S swell from Erin will continue to
spread N into the central and N waters tonight. Significant swell
will continue through Fri night while gradually backing to the E
Wed through Thu night. Another high will build over the waters
Fri through Sat night while a stationary front forms over the far
S waters. The high will shift E of the region Sat night through
Sun night, while a cold front will approach the area from the W
Sun 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

...TROPICAL STORM WARNING...

.TONIGHT...E winds 10 to 15 kt. Seas 6 to 10 ft.
.WED...E winds 10 to 15 kt. Seas 6 to 11 ft.
.WED NIGHT...E to NE winds 15 to 25 kt. Seas 11 to 18 ft.
Scattered showers and tstms.
.THU...NE winds 25 to 30 kt, increasing to 30 to 40 kt. Seas
15 to 25 ft. Showers and tstms.
.THU NIGHT...N winds 30 to 40 kt. Seas 15 to 25 ft.
.FRI...N winds 20 to 30 kt. Seas 12 to 21 ft.
.FRI NIGHT...NE winds 5 to 15 kt, becoming variable. Seas 9 to
16 ft.
.SAT...Variable winds less than 10 kt, becoming S. Seas 6 to
11 ft.
.SAT NIGHT...S winds 10 to 15 kt. Seas 5 to 9 ft.
.SUN...S winds 10 to 15 kt. Seas 4 to 7 ft.
.SUN NIGHT...S winds 10 to 15 kt, becoming S to SW 5 to 10 kt.
Seas 4 to 7 ft.

Baltimore Canyon to the Hague Line south of 1000 fm

...HURRICANE WARNING...

.TONIGHT...E winds 5 to 15 kt. Seas 6 to 10 ft.
.WED...E winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 7 to
12 ft. Scattered showers and tstms.
.WED NIGHT...E winds 20 to 30 kt. Seas 13 to 22 ft. Scattered
showers and tstms with vsby 1 nm or less.
.THU...E winds 30 to 40 kt, increasing to 50 to 65 kt. Seas
17 to 32 ft, building to 28 to 43 ft. Showers and tstms with
vsby 1 nm or less.
.THU NIGHT...E to NE winds 70 to 90 kt. Seas 33 to 48 ft.
.FRI...N to NE winds 65 to 85 kt. Seas 30 to 45 ft.
.FRI NIGHT...N winds 35 to 45 kt. Seas 17 to 32 ft, subsiding to
14 to 24 ft.
.SAT...N winds 15 to 25 kt, becoming N to NE 5 to 15 kt. Seas
11 to 18 ft.
.SAT NIGHT...E to SE winds 5 to 15 kt, becoming SE 5 to 10 kt.
Seas 7 to 12 ft.
.SUN...S to SE winds 5 to 15 kt. Seas 6 to 10 ft.
.SUN NIGHT...S winds 5 to 15 kt. Seas 6 to 8 ft.

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

...HURRICANE WARNING...

.TONIGHT...E winds 5 to 15 kt, increasing to 10 to 20 kt. Seas
7 to 12 ft. Isolated showers and tstms.
.WED...E winds 20 to 30 kt. Seas 12 to 20 ft. Scattered showers
and tstms.
.WED NIGHT...E winds 30 to 40 kt, increasing to 45 to 60 kt.
Seas 19 to 29 ft, building to 31 to 46 ft. Showers and tstms
with vsby 1 nm or less.
.THU...S to SE winds 85 to 100 kt, becoming S to SW 80 to 95 kt.
Seas 46 to 61 ft. Showers and tstms with vsby 1 nm or less.
.THU NIGHT...N to NW winds 70 to 85 kt, diminishing to 40 to
50 kt. Seas 31 to 46 ft, subsiding to 19 to 34 ft.
.FRI...N to NW winds 25 to 35 kt, becoming N 15 to 25 kt. Seas
15 to 25 ft.
.FRI NIGHT...N to NE winds 10 to 20 kt, becoming NE 5 to 15 kt.
Seas 10 to 18 ft.
.SAT...E to NE winds 5 to 15 kt. Seas 8 to 14 ft.
.SAT NIGHT...SE winds 5 to 15 kt, becoming 5 to 10 kt. Seas 6 to
11 ft.
.SUN...S to SE winds 5 to 15 kt. Seas 5 to 9 ft.
.SUN NIGHT...S winds 5 to 15 kt. Seas 4 to 8 ft.

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

...HURRICANE WARNING...

.TONIGHT...E winds 10 to 20 kt, increasing to 20 to 30 kt. Seas
11 to 19 ft. Scattered showers and tstms.
.WED...E winds 30 to 40 kt, increasing to 45 to 55 kt. Seas
18 to 27 ft, building to 27 to 42 ft. Showers and tstms with
vsby 1 nm or less.
.WED NIGHT...E to SE winds 80 to 95 kt, becoming S to SE 85 to
100 kt. Seas 44 to 59 ft. Showers and tstms with vsby 1 nm or
less.
.THU...S to SW winds 85 to 100 kt, becoming W 65 to 80 kt. Seas
45 to 60 ft. Showers and tstms with vsby 1 nm or less.
.THU NIGHT...W to NW winds 35 to 45 kt, becoming N to NW 20 to
30 kt. Seas 18 to 33 ft, subsiding to 16 to 24 ft.
.FRI...N winds 15 to 25 kt. Seas 12 to 20 ft.
.FRI NIGHT...N winds 10 to 15 kt, becoming NE 5 to 10 kt. Seas
9 to 15 ft.
.SAT...E to NE winds 5 to 10 kt. Seas 7 to 13 ft.
.SAT NIGHT...E to SE winds 5 to 10 kt. Seas 6 to 11 ft.
.SUN...S to SE winds 5 to 15 kt. Seas 5 to 9 ft.
.SUN NIGHT...S winds 5 to 15 kt, becoming SW. Seas 5 to 8 ft.

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

...HURRICANE WARNING...

.TONIGHT...E to NE winds 20 to 30 kt, becoming NE 30 to 40 kt.
Seas 12 to 18 ft, building to 18 to 26 ft. Scattered showers and
tstms with vsby 1 nm or less.
.WED...NE winds 45 to 55 kt, becoming E to NE 75 to 90 kt. Seas
27 to 42 ft, building to 38 to 53 ft. Showers and tstms with
vsby 1 nm or less.
.WED NIGHT...S to SE winds 80 to 95 kt, becoming W to SW. Seas
44 to 59 ft. Scattered showers and tstms with vsby 1 nm or less.
.THU...W to NW winds 40 to 50 kt, diminishing to 30 to 40 kt.
Seas 25 to 35 ft, subsiding to 18 to 26 ft. Showers and tstms.
.THU NIGHT...W to NW winds 20 to 30 kt, becoming N to NW 10 to
20 kt. Seas 12 to 20 ft.
.FRI...N to NE winds 5 to 15 kt, becoming E to NE. Seas 9 to
15 ft.
.FRI NIGHT...E winds 5 to 10 kt, becoming 5 to 15 kt. Seas 7 to
12 ft.
.SAT...E winds 5 to 15 kt. Seas 6 to 10 ft.
.SAT NIGHT...E to SE winds less than 10 kt. Seas 6 to 10 ft.
.SUN...S to SW winds 5 to 15 kt. Seas 5 to 8 ft.
.SUN NIGHT...W to SW winds 5 to 15 kt. Seas 5 to 8 ft.

.Forecaster Connelly. Ocean Prediction Center.