Offshore Forecast
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831
FZNT34 KWBC 122045
OFFN32

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
445 PM EDT Sun Oct 12 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 broad and complex coastal low
will remain nearly stationary just offshore of the SE and
Mid-Atlantic coasts tonight. The parent low off the SE coast will
move E-NE through early Tue, while the secondary low about 150 nm
E of the Virginia Capes will drift toward the coast through Tue.
By Tue night, the northern low will become absorbed or dissipate
and the southern low will finally move E of the waters Tue night
into Wed. Mariners should continue to monitor later forecasts on
this coastal system as it will be highly impactful to the mariner
through the middle of the week. High pressure will build S into
the eastern U.S. Wed through Thu, maintaining a strong pressure
gradient across the waters, then persist through Fri night. A new
area of low pressure will likely form just E of the outer
Mid-Atlantic waters Thu and quickly move farther E and SE into
the Atlantic by Fri night.

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

...STORM WARNING...

.TONIGHT...NE winds 35 to 50 kt, becoming E to NE 30 to 40 kt.
Seas 14 to 24 ft. Rain.
.MON...E to NE winds 25 to 35 kt, diminishing to 20 to 30 kt.
Seas 12 to 20 ft. Scattered showers.
.MON NIGHT...E to NE winds 20 to 30 kt. Seas 8 to 14 ft.
Scattered showers and tstms.
.TUE...N to NE winds 20 to 30 kt. Seas 8 to 12 ft. Chance of
rain.
.TUE NIGHT...N winds 20 to 30 kt. Seas 7 to 13 ft.
.WED...N winds 15 to 25 kt. Seas 6 to 11 ft.
.WED NIGHT...N winds 20 to 30 kt. Seas 6 to 10 ft.
.THU...N winds 20 to 25 kt. Seas 6 to 10 ft.
.THU NIGHT...N winds 20 to 30 kt. Seas 6 to 10 ft.
.FRI...N winds 15 to 25 kt. Seas 6 to 10 ft.
.FRI NIGHT...N to NW winds 5 to 15 kt. Seas 5 to 8 ft.

Baltimore Canyon to the Hague Line south of 1000 fm

...STORM WARNING...

.TONIGHT...E to NE winds 40 to 50 kt, becoming E 35 to 45 kt.
Seas 14 to 24 ft. Rain.
.MON...E winds 30 to 40 kt. Seas 14 to 23 ft. Scattered showers
and slight chance of tstms with vsby 1 nm or less.
.MON NIGHT...E to SE winds 20 to 30 kt. Seas 10 to 18 ft.
Scattered showers and tstms with vsby 1 nm or less.
.TUE...N winds 10 to 20 kt, increasing to 20 to 30 kt. Seas 9 to
14 ft. Scattered showers and tstms with vsby 1 nm or less.
.TUE NIGHT...N winds 20 to 30 kt, increasing to 25 to 35 kt.
Seas 9 to 16 ft.
.WED...N winds 25 to 35 kt, diminishing to 20 to 30 kt. Seas
9 to 16 ft.
.WED NIGHT...N winds 20 to 30 kt. Seas 7 to 12 ft.
.THU...N winds 20 to 30 kt, increasing to 25 to 35 kt. Seas 9 to
14 ft.
.THU NIGHT...N winds 30 to 40 kt. Seas 12 to 20 ft.
.FRI...N winds 30 to 40 kt. Seas 13 to 21 ft.
.FRI NIGHT...N winds 25 to 35 kt, diminishing to 20 to 30 kt.
Seas 12 to 20 ft.

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

...GALE WARNING...

.TONIGHT...NE winds 30 to 40 kt, becoming N to NE 20 to 30 kt.
Seas 13 to 22 ft. Scattered showers and tstms.
.MON...N to NW winds 15 to 25 kt. Seas 9 to 15 ft. Scattered
showers and slight chance of tstms.
.MON NIGHT...N to NW winds 15 to 25 kt. Seas 7 to 12 ft.
Scattered showers and tstms.
.TUE...N winds 20 to 30 kt. Seas 7 to 12 ft. Scattered showers
and tstms.
.TUE NIGHT...N winds 20 to 30 kt, increasing to 25 to 35 kt.
Seas 8 to 14 ft.
.WED...N winds 20 to 30 kt. Seas 9 to 15 ft.
.WED NIGHT...N winds 20 to 30 kt. Seas 7 to 13 ft.
.THU...N winds 20 to 30 kt. Seas 8 to 14 ft.
.THU NIGHT...N winds 20 to 30 kt. Seas 9 to 15 ft.
.FRI...N winds 20 to 30 kt. Seas 10 to 16 ft.
.FRI NIGHT...N winds 15 to 25 kt. Seas 9 to 15 ft.

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

...GALE WARNING...

.TONIGHT...S to SW winds 15 to 25 kt. Seas 9 to 16 ft. Scattered
showers and tstms.
.MON...N to NE winds 20 to 30 kt, becoming N 25 to 35 kt. Seas
7 to 13 ft. Scattered showers and tstms.
.MON NIGHT...N winds 25 to 35 kt, becoming N to NW 20 to 30 kt.
Seas 8 to 13 ft. Scattered showers and tstms.
.TUE...NW winds 20 to 30 kt, becoming N. Seas 7 to 12 ft. Chance
of rain.
.TUE NIGHT...N winds 20 to 30 kt. Seas 8 to 14 ft.
.WED...N winds 20 to 30 kt. Seas 8 to 14 ft.
.WED NIGHT...N winds 20 to 30 kt. Seas 7 to 13 ft.
.THU...N winds 20 to 30 kt. Seas 7 to 13 ft.
.THU NIGHT...N winds 20 to 30 kt. Seas 8 to 14 ft.
.FRI...N winds 20 to 30 kt. Seas 9 to 14 ft.
.FRI NIGHT...N winds 15 to 25 kt. Seas 9 to 14 ft.

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

...GALE WARNING...

.TONIGHT...W to SW winds 20 to 30 kt, becoming N to NW. Seas
9 to 15 ft. Scattered showers and tstms.
.MON...N to NW winds 20 to 30 kt, increasing to 25 to 35 kt.
Seas 7 to 13 ft. Scattered showers and tstms.
.MON NIGHT...N to NW winds 25 to 35 kt, diminishing to 20 to
30 kt. Seas 8 to 14 ft. Scattered showers and tstms.
.TUE...N to NW winds 15 to 25 kt. Seas 7 to 11 ft.
.TUE NIGHT...N winds 20 to 30 kt. Seas 7 to 12 ft.
.WED...N winds 15 to 25 kt. Seas 7 to 12 ft.
.WED NIGHT...N winds 15 to 25 kt. Seas 7 to 11 ft.
.THU...N winds 15 to 25 kt. Seas 7 to 11 ft.
.THU NIGHT...N winds 15 to 25 kt. Seas 7 to 12 ft.
.FRI...N winds 10 to 20 kt. Seas 8 to 12 ft.
.FRI NIGHT...N winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 7 to 12 ft.

.Forecaster Huffman. Ocean Prediction Center.