898
FZNT34 KWBC 180305
OFFN32

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
1105 PM EDT Sun Aug 17 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 across the Outer
Mid-Atlantic Waters tonight will drift SE and dissipate on Mon.
Low pressure just SE of the S waters will lift slowly NE along a
stationary front tonight through Mon night. A cold front will
move S into the N waters Mon before becoming stationary across
the central waters Mon night through Tue night. High pressure
will build S into the N waters behind the front, then move NE
away from the area Wed. Hurricane Erin, currently well SE of the
waters, will track N over the far outer S waters Wed and Wed
night, then turn NE and move through the outer central waters
Thu, and the Outer Mid-Atlantic Waters Thu night into Fri. Long
period SE to S swell from Erin will move into the S waters
tonight, expand across the remainder of the area Mon through Tue
night, and continue through Fri night while gradually backing to
the E Wed through Thu night from the S waters to the N waters.
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...SW winds 10 to 15 kt, becoming NE 15 to 25 kt. Seas
3 to 4 ft. Scattered showers and tstms.
.MON...E to NE winds 20 to 30 kt. Seas 4 to 8 ft. Isolated
showers and tstms.
.MON NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. Isolated
showers and tstms.
.TUE...E winds 10 to 20 kt. Seas 6 to 10 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 10 ft.
.WED...E winds 10 to 20 kt. Seas 8 to 14 ft.
.WED NIGHT...E winds 15 to 25 kt, becoming NE. Seas 12 to 21 ft.
.THU...NE winds 20 to 30 kt. Seas 13 to 22 ft.
.THU NIGHT...NE winds 20 to 30 kt, becoming N. Seas 12 to 20 ft.
.FRI...N to NE winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 8 to 14 ft.
.FRI NIGHT...E to SE winds 5 to 10 kt. Seas 6 to 10 ft.

Baltimore Canyon to the Hague Line south of 1000 fm

...HURRICANE CONDITIONS POSSIBLE THU...

.TONIGHT...S to SW winds 5 to 15 kt, becoming W to SW. Seas 3 to
5 ft. Isolated showers and tstms.
.MON...N to NE winds 15 to 25 kt. Seas 5 to 8 ft. Isolated
showers and tstms.
.MON NIGHT...E to NE winds 15 to 25 kt. Seas 5 to 9 ft. Isolated
showers and tstms.
.TUE...E winds 10 to 20 kt. Seas 6 to 10 ft. Scattered showers
and tstms.
.TUE NIGHT...E winds 10 to 20 kt. Seas 7 to 12 ft.
.WED...E winds 10 to 20 kt. Seas 11 to 18 ft.
.WED NIGHT...E winds 15 to 25 kt, increasing to 25 to 35 kt.
Seas 15 to 30 ft.
.THU...Hurricane conditions possible.
.THU NIGHT...Hurricane conditions possible.
.FRI...Tropical storm conditions possible.
.FRI NIGHT...N winds 15 to 25 kt, becoming N to NE 5 to 15 kt.
Seas 9 to 16 ft.

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

...HURRICANE CONDITIONS POSSIBLE WED NIGHT...

.TONIGHT...E to NE winds 5 to 15 kt. Seas 3 to 6 ft.
.MON...NE winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 4 to
7 ft. Isolated showers and tstms.
.MON NIGHT...E to NE winds 10 to 20 kt. Seas 6 to 10 ft.
Isolated showers and tstms.
.TUE...E winds 10 to 20 kt. Seas 7 to 12 ft. Scattered showers
and tstms.
.TUE NIGHT...E winds 10 to 20 kt. Seas 9 to 16 ft.
.WED...E winds 20 to 30 kt, increasing to 25 to 35 kt. Seas
15 to 23 ft, building to 18 to 33 ft.
.WED NIGHT...E winds 45 to 55 kt, increasing to 75 to 90 kt.
Seas 32 to 47 ft.
.THU...Hurricane conditions possible.
.THU NIGHT...Tropical storm conditions possible.
.FRI...N winds 15 to 25 kt. Seas 9 to 15 ft.
.FRI NIGHT...NE winds 10 to 15 kt, becoming E 5 to 10 kt. Seas
7 to 12 ft.

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

...HURRICANE CONDITIONS POSSIBLE WED...

.TONIGHT...N to NE winds 5 to 15 kt. Seas 3 to 6 ft. Isolated
showers and tstms.
.MON...N winds 5 to 15 kt, becoming NE. Seas 4 to 8 ft. Isolated
showers and tstms.
.MON NIGHT...E to NE winds 5 to 15 kt. Seas 7 to 12 ft. Isolated
showers and tstms.
.TUE...E winds 10 to 15 kt, becoming 10 to 20 kt. Seas 9 to
16 ft. Scattered showers and tstms.
.TUE NIGHT...E winds 20 to 30 kt, increasing to 25 to 35 kt.
Seas 13 to 20 ft, building to 18 to 27 ft.
.WED...E winds 35 to 45 kt, increasing to 65 to 80 kt. Seas
33 to 48 ft.
.WED NIGHT...E to NE winds 80 to 95 kt. Seas 36 to 51 ft.
.THU...Hurricane conditions possible.
.THU NIGHT...N to NW winds 20 to 30 kt. Seas 11 to 18 ft.
.FRI...N winds 10 to 20 kt, becoming N to NE 5 to 15 kt. Seas
7 to 13 ft.
.FRI NIGHT...NE winds 10 to 15 kt, becoming E 5 to 15 kt. Seas
7 to 11 ft.

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

...HURRICANE CONDITIONS POSSIBLE WED...

.TONIGHT...E to NE winds 5 to 10 kt, becoming N to NE. Seas 4 to
7 ft. Isolated showers and tstms.
.MON...NE winds 5 to 15 kt. Seas 5 to 9 ft.
.MON NIGHT...E to NE winds 5 to 15 kt. Seas 7 to 13 ft. Isolated
showers and tstms.
.TUE...NE winds 10 to 20 kt, becoming E to NE 20 to 30 kt. Seas
11 to 18 ft. Scattered showers and tstms.
.TUE NIGHT...E to NE winds 20 to 30 kt, becoming NE 35 to 45 kt.
Seas 16 to 24 ft, building to 23 to 33 ft.
.WED...E to NE winds 75 to 95 kt. Seas 31 to 46 ft.
.WED NIGHT...W to NW winds 70 to 90 kt. Seas 23 to 38 ft,
subsiding to 19 to 28 ft.
.THU...Tropical storm conditions possible.
.THU NIGHT...N to NW winds 15 to 25 kt. Seas 8 to 14 ft.
.FRI...N to NE winds 5 to 15 kt, becoming E to NE 5 to 10 kt.
Seas 6 to 11 ft.
.FRI NIGHT...E to NE winds 5 to 10 kt. Seas 6 to 9 ft.

.Forecaster Connelly. Ocean Prediction Center.