643
FZNT34 KWBC 201423
OFFN32

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
923 AM EST Thu Nov 20 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...An area of low pressure just E of
the far outer Mid-Atlantic Waters this morning will track NE away
from the area today. A trailing cold front will move slowly SE
across the southern waters today, while a secondary trough moves
slowly S through the central waters behind the cold front. The
cold front will briefly stall across the southern waters tonight,
then dissipate early Fri. High pressure will quickly pass E
across the waters Fri into Fri night. Another low and associated
warm front will move offshore from the Mid- Atlantic Fri night,
then become absorbed into a cold front moving S into the northern
waters Sat. The low will move NE away from the area Sat night
into Sun as the cold front continues moving SE across the waters.
Another high will move E across the northern and central waters
Sun night through Mon night.

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

.TODAY...N to NE winds 5 to 10 kt. Seas 3 to 4 ft.
.TONIGHT...Variable winds less than 5 kt. Seas 3 ft early,
becoming 2 ft or less.
.FRI...S winds less than 10 kt, becoming S to SW. Seas 2 ft or
less.
.FRI NIGHT...SW winds 5 to 15 kt, becoming W to NW. Seas 3 to
4 ft. Chance of showers.
.SAT...N winds 5 to 15 kt, increasing to 15 to 20 kt. Seas 3 to
6 ft.
.SAT NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt.
Seas 3 to 6 ft.
.SUN...N to NW winds 5 to 10 kt, becoming W to NW 5 to 15 kt.
Seas 3 to 5 ft.
.SUN NIGHT...W winds 10 to 15 kt, increasing to 15 to 20 kt.
Seas 3 to 5 ft.
.MON...NW winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas
3 to 6 ft.
.MON NIGHT...N to NW winds less than 10 kt, becoming variable.
Seas 3 to 5 ft.

Baltimore Canyon to the Hague Line south of 1000 fm

...GALE FORCE WINDS POSSIBLE SAT NIGHT...

.TODAY...N winds 10 to 20 kt. Seas 4 to 7 ft.
.TONIGHT...N winds 10 to 20 kt. Seas 4 to 7 ft.
.FRI...N to NW winds 5 to 15 kt, becoming W to NW. Seas 3 to
6 ft.
.FRI NIGHT...S to SW winds 5 to 15 kt, increasing to 15 to
25 kt. Seas 3 to 5 ft. Chance of showers and tstms.
.SAT...S to SW winds 15 to 25 kt, becoming N to NW. Seas 6 to
10 ft.
.SAT NIGHT...N winds 25 to 35 kt, diminishing to 15 to 25 kt.
Seas 6 to 10 ft.
.SUN...N winds 5 to 15 kt, becoming NW. Seas 4 to 8 ft.
.SUN NIGHT...W winds 5 to 15 kt, increasing to 10 to 20 kt. Seas
3 to 6 ft.
.MON...W winds 15 to 25 kt, becoming NW 20 to 30 kt. Seas 5 to
9 ft.
.MON NIGHT...NW winds 15 to 25 kt. Seas 5 to 8 ft.

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

...GALE FORCE WINDS POSSIBLE SAT...

.TODAY...N winds 10 to 20 kt. Seas 4 to 7 ft. Scattered showers.
.TONIGHT...N winds 10 to 20 kt, becoming N to NW 5 to 15 kt.
Seas 3 to 6 ft. Scattered showers.
.FRI...N to NW winds 5 to 15 kt, becoming W to SW. Seas 3 to
4 ft. Isolated showers.
.FRI NIGHT...SW winds 10 to 20 kt, becoming W to SW 20 to 30 kt.
Seas 3 to 6 ft. Chance of showers and tstms.
.SAT...W to SW winds 25 to 35 kt. Seas 6 to 11 ft.
.SAT NIGHT...N winds 15 to 25 kt. Seas 6 to 11 ft.
.SUN...N winds 10 to 20 kt. Seas 4 to 7 ft.
.SUN NIGHT...N to NW winds 5 to 15 kt. Seas 3 to 6 ft.
.MON...NW winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 4 to
8 ft.
.MON NIGHT...N winds 5 to 15 kt, becoming N to NE 5 to 10 kt.
Seas 4 to 7 ft.

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

.TODAY...N winds 5 to 15 kt. Seas 3 to 6 ft.
.TONIGHT...N winds 5 to 15 kt. Seas 3 to 5 ft.
.FRI...Variable winds 5 to 15 kt, becoming SW 10 to 20 kt. Seas
3 to 4 ft.
.FRI NIGHT...W to SW winds 20 to 30 kt. Seas 3 to 6 ft. Chance
of showers and tstms.
.SAT...W to SW winds 20 to 30 kt. Seas 5 to 9 ft.
.SAT NIGHT...W to NW winds 10 to 20 kt, becoming N. Seas 4 to
8 ft.
.SUN...N winds 10 to 20 kt. Seas 4 to 7 ft.
.SUN NIGHT...N winds 5 to 15 kt. Seas 3 to 6 ft.
.MON...N to NE winds 5 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E to NE winds 5 to 10 kt, becoming E to SE. Seas
3 to 5 ft.

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

.TODAY...N to NE winds 5 to 15 kt, diminishing to less than
10 kt. Seas 3 to 4 ft. Isolated showers.
.TONIGHT...N to NE winds less than 10 kt, becoming variable.
Seas 3 to 4 ft. Isolated showers.
.FRI...Variable winds less than 10 kt, becoming SW 10 to 20 kt.
Seas 3 to 4 ft.
.FRI NIGHT...SW winds 15 to 25 kt. Seas 3 to 5 ft.
.SAT...W to SW winds 20 to 30 kt. Seas 4 to 7 ft.
.SAT NIGHT...W to NW winds 15 to 25 kt. Seas 3 to 6 ft.
.SUN...N to NE winds 10 to 20 kt. Seas 4 to 7 ft.
.SUN NIGHT...NE winds 5 to 15 kt. Seas 3 to 6 ft.
.MON...E to NE winds 5 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E to SE winds 5 to 15 kt. Seas 3 to 5 ft.

.Forecaster Holley. Ocean Prediction Center.