Offshore Forecast
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664
FZNT34 KWBC 171510
OFFN32

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
1110 AM 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 N waters
will slowly move SE today and tonight, then weaken Mon. Low
pressure across the S and central waters will slowly move E today
through Mon while slowly pulling a cold front across far SE
portions. Another weakening cold front will move S over the
northern waters late Mon and Mon night, before another high
builds just N of the waters Tue and Tue night. The high will
shift NE of the area Wed and Wed night. Hurricane Erin, currently
well SE of the waters, will approach the region from the SE and S
Tue and Tue night, track N and NE over the far outer S and
central waters Wed and Wed night, then turn more NE while passing
just E of the area Thu and Thu night. 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, and continue through Thu
night while backing to the E and NE. 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

.TODAY...S to SW winds less than 10 kt, becoming S 10 to 20 kt.
Seas 3 to 4 ft.
.TONIGHT...S winds 10 to 20 kt, becoming N to NW. Seas 3 to
4 ft. Chance of showers and tstms.
.MON...NE winds 20 to 30 kt. Seas 5 to 9 ft. Chance of showers
and slight chance of tstms.
.MON NIGHT...E winds 15 to 25 kt. Seas 5 to 9 ft. Chance of
rain.
.TUE...E winds 15 to 20 kt. Seas 6 to 10 ft.
.TUE NIGHT...E winds 15 to 20 kt, becoming E to NE 10 to 15 kt.
Seas 6 to 10 ft.
.WED...E to NE winds 15 to 20 kt. Seas 7 to 13 ft.
.WED NIGHT...NE winds 15 to 25 kt. Seas 11 to 18 ft.
.THU...NE winds 20 to 30 kt. Seas 12 to 20 ft.
.THU NIGHT...NE winds 15 to 25 kt. Seas 10 to 17 ft.

Baltimore Canyon to the Hague Line south of 1000 fm

...HURRICANE CONDITIONS POSSIBLE THU...

.TODAY...E to SE winds 5 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...S to SW winds 5 to 15 kt, becoming W to SW. Seas 3 to
5 ft.
.MON...NE winds 15 to 25 kt. Seas 4 to 8 ft. Chance of showers
and tstms.
.MON NIGHT...E to NE winds 15 to 25 kt. Seas 5 to 9 ft.
.TUE...E winds 10 to 20 kt. Seas 6 to 11 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 7 to 12 ft.
.WED...E winds 10 to 20 kt. Seas 10 to 17 ft.
.WED NIGHT...Tropical storm conditions possible.
.THU...Hurricane conditions possible.
.THU NIGHT...Hurricane conditions possible.

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

...HURRICANE CONDITIONS POSSIBLE WED NIGHT...

.TODAY...NE winds 10 to 20 kt. Seas 4 to 7 ft. Scattered showers
and tstms.
.TONIGHT...E to NE winds 5 to 15 kt. Seas 3 to 6 ft. Scattered
showers and tstms.
.MON...NE winds 5 to 15 kt. Seas 4 to 8 ft. Scattered showers
and tstms.
.MON NIGHT...E to NE winds 10 to 20 kt. Seas 6 to 10 ft.
.TUE...E winds 10 to 20 kt. Seas 7 to 12 ft.
.TUE NIGHT...E to NE winds 10 to 20 kt. Seas 11 to 18 ft.
.WED...Tropical storm conditions possible.
.WED NIGHT...Hurricane conditions possible.
.THU...Hurricane conditions possible.
.THU NIGHT...N winds 20 to 30 kt, diminishing to 10 to 20 kt.
Seas 12 to 20 ft, subsiding to 8 to 14 ft.

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

...HURRICANE CONDITIONS POSSIBLE WED...

.TODAY...N winds 10 to 20 kt. Seas 4 to 7 ft. Scattered showers
and tstms.
.TONIGHT...N to NE winds 5 to 15 kt. Seas 4 to 7 ft. Scattered
showers and tstms.
.MON...N winds 5 to 15 kt, becoming NE. Seas 5 to 9 ft.
Scattered showers and tstms.
.MON NIGHT...NE winds 5 to 15 kt, increasing to 10 to 20 kt.
Seas 6 to 11 ft. Chance of showers and slight chance of tstms.
.TUE...E to NE winds 10 to 20 kt. Seas 10 to 16 ft.
.TUE NIGHT...E to NE winds 20 to 30 kt. Seas 14 to 23 ft.
.WED...Hurricane conditions possible.
.WED NIGHT...Hurricane conditions possible.
.THU...Tropical storm conditions possible.
.THU NIGHT...N winds 15 to 25 kt. Seas 9 to 15 ft.

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

...HURRICANE CONDITIONS POSSIBLE WED...

.TODAY...N to NE winds 5 to 15 kt. Seas 3 to 6 ft. Scattered
showers and tstms.
.TONIGHT...N to NE winds 5 to 15 kt. Seas 4 to 7 ft. Scattered
showers and tstms.
.MON...NE winds 5 to 15 kt. Seas 6 to 10 ft. Scattered showers
and tstms.
.MON NIGHT...E to NE winds 5 to 15 kt, becoming NE 10 to 20 kt.
Seas 7 to 13 ft. Chance of showers and slight chance of tstms.
.TUE...NE winds 15 to 25 kt. Seas 11 to 19 ft.
.TUE NIGHT...NE winds 20 to 30 kt, increasing to 30 to 40 kt.
Seas 14 to 24 ft.
.WED...Hurricane conditions possible.
.WED NIGHT...Hurricane conditions possible.
.THU...N to NW winds 15 to 25 kt. Seas 10 to 17 ft.
.THU NIGHT...N to NE winds 5 to 15 kt. Seas 7 to 12 ft.

.Forecaster Huffman. Ocean Prediction Center.