175
FZNT34 KWBC 300950
OFFN32

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
550 AM EDT Tue Sep 30 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 stalled front over the N waters
will move E of the region today. Hurricane Humberto will track N
and NE while passing to the SE and E of the waters today into
tonight, then turn more E to NE while moving well E of the area
Wed and Wed night. Tropical Storm Imelda will strengthen to a
hurricane today while turning E and passing just S of the area
into as a hurricane. Imelda will then turn more E to NE into the
N Atlantic later Wed into Fri night. Ongoing SE to E swell from
Humberto will back to NE tonight into Wed as Imelda passes S and
SE of the region, then continue into Fri. See the latest
advisories from the National Hurricane Center. Otherwise, a cold
front will approach from the NW today, then move SE across the
far NE waters tonight. Strong high pressure will build N of the
area Wed into Thu night, then move over the N portion Fri and
persist into Sat night.

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

.TODAY...NE winds 5 to 15 kt, increasing to 15 to 25 kt. Seas
9 to 16 ft. Scattered tstms.
.TONIGHT...NE winds 20 to 30 kt. Seas 11 to 18 ft.
.WED...NE winds 20 to 30 kt. Seas 10 to 18 ft.
.WED NIGHT...NE winds 20 to 30 kt. Seas 8 to 14 ft.
.THU...NE winds 15 to 25 kt. Seas 7 to 13 ft.
.THU NIGHT...E winds 5 to 15 kt, becoming 5 to 10 kt. Seas 6 to
10 ft.
.FRI...NE winds 5 to 10 kt, becoming variable. Seas 4 to 8 ft.
.FRI NIGHT...SW winds 5 to 15 kt, becoming W. Seas 4 to 7 ft.
.SAT...W winds less than 10 kt, becoming W to SW. Seas 4 to
7 ft.
.SAT NIGHT...SW winds 5 to 15 kt, becoming W to SW 5 to 10 kt.
Seas 3 to 6 ft.

Baltimore Canyon to the Hague Line south of 1000 fm

...TROPICAL STORM WARNING...

.TODAY...E to NE winds 5 to 15 kt, becoming NE 20 to 30 kt. Seas
13 to 22 ft. Scattered showers and tstms.
.TONIGHT...NE winds 35 to 45 kt. Seas 16 to 26 ft. Rain.
.WED...N to NE winds 30 to 40 kt. Seas 15 to 22 ft. Rain.
.WED NIGHT...N to NE winds 25 to 35 kt, becoming 25 to 30 kt.
Seas 12 to 19 ft.
.THU...NE winds 20 to 30 kt. Seas 10 to 18 ft.
.THU NIGHT...NE winds 15 to 25 kt, diminishing to 5 to 15 kt.
Seas 9 to 16 ft.
.FRI...N to NE winds 5 to 15 kt, diminishing to less than 10 kt.
Seas 7 to 12 ft.
.FRI NIGHT...Variable winds less than 10 kt, becoming W. Seas
6 to 11 ft.
.SAT...W winds 5 to 15 kt. Seas 5 to 9 ft.
.SAT NIGHT...W winds 5 to 15 kt, diminishing to less than 10 kt.
Seas 5 to 8 ft.

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

...TROPICAL STORM WARNING...

.TODAY...E winds 20 to 30 kt, becoming N to NE 35 to 45 kt. Seas
14 to 27 ft. Scattered showers and tstms.
.TONIGHT...N to NE winds 30 to 40 kt. Seas 15 to 25 ft.
Scattered showers and tstms.
.WED...N to NE winds 25 to 35 kt. Seas 12 to 20 ft.
.WED NIGHT...NE winds 25 to 35 kt, diminishing to 20 to 30 kt.
Seas 11 to 19 ft.
.THU...NE winds 15 to 25 kt. Seas 10 to 17 ft.
.THU NIGHT...NE winds 15 to 25 kt. Seas 9 to 16 ft.
.FRI...NE winds 5 to 15 kt. Seas 7 to 12 ft.
.FRI NIGHT...E winds 5 to 15 kt, becoming E to NE. Seas 6 to
11 ft.
.SAT...E to NE winds 5 to 15 kt, becoming E. Seas 6 to 10 ft.
.SAT NIGHT...E winds 5 to 15 kt. Seas 5 to 9 ft.

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

...TROPICAL STORM WARNING...

.TODAY...NE winds 20 to 30 kt, becoming N to NE 30 to 40 kt.
Seas 15 to 27 ft. Scattered showers and tstms.
.TONIGHT...E to NE winds 25 to 35 kt, becoming N to NE 35 to
45 kt. Seas 13 to 21 ft. Scattered showers and tstms.
.WED...N to NE winds 35 to 45 kt. Seas 12 to 19 ft.
.WED NIGHT...N to NE winds 25 to 35 kt, becoming NE 20 to 25 kt.
Seas 11 to 19 ft.
.THU...NE winds 20 to 25 kt. Seas 10 to 17 ft.
.THU NIGHT...E to NE winds 15 to 25 kt. Seas 9 to 16 ft.
.FRI...E to NE winds 15 to 25 kt. Seas 7 to 13 ft.
.FRI NIGHT...E winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 6 to 11 ft.
.SAT...E winds 10 to 20 kt. Seas 6 to 11 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 10 ft.

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

...TROPICAL STORM WARNING...

.TODAY...E to NE winds 35 to 45 kt. Seas 14 to 24 ft. Scattered
showers and tstms.
.TONIGHT...N to NE winds 40 to 55 kt. Seas 14 to 26 ft.
Scattered showers and tstms.
.WED...N to NE winds 35 to 45 kt. Seas 11 to 19 ft.
.WED NIGHT...N to NE winds 20 to 30 kt. Seas 9 to 16 ft.
.THU...NE winds 20 to 25 kt. Seas 9 to 15 ft.
.THU NIGHT...E to NE winds 20 to 30 kt. Seas 10 to 16 ft.
.FRI...E to NE winds 15 to 25 kt. Seas 7 to 13 ft.
.FRI NIGHT...E winds 15 to 25 kt. Seas 7 to 12 ft.
.SAT...E winds 15 to 25 kt. Seas 7 to 12 ft.
.SAT NIGHT...E winds 15 to 25 kt. Seas 7 to 12 ft.

.Forecaster Holley. Ocean Prediction Center.