High Frequency Voice Broadcast (Mid Atlantic)

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FZNT34 KWBC 180823
OFFN32

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
423 AM EDT Thu Apr 18 2024

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 high pressure ridge over the
far S waters this morning will drift SE of the area today into
Sun. A warm front across the central waters will drift N today as
developing low pressure moves off the Mid-Atlantic coast. The low
will drift slowly E to SE across the N and central waters tonight
into Fri while pulling a weak cold front across the area, then
move slowly NE over the far NE waters Fri night and Sat. A cold
front will move E and SE over the waters Sat and Sat night, and
stall over the S and central waters Sun. A series of low pressure
centers will move NE along the front Sun night into Mon night.
High pressure will build E across the N waters Sun and Sun night,
and then shift well E of the region Mon and Mon night.  

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

.TODAY...E to SE winds 15 to 25 kt, becoming N to NE. Seas 5 to
9 ft. Tstms and scattered showers. Areas of fog. Vsby 1 NM or
less. 
.TONIGHT...NE winds 15 to 25 kt. Seas 6 to 10 ft. Chance of
rain. 
.FRI...E to NE winds 10 to 15 kt, becoming E 5 to 10 kt. Seas
5 to 8 ft. Chance of rain. 
.FRI NIGHT...SE winds 5 to 10 kt, becoming variable. Seas 4 to
7 ft. Chance of rain. 
.SAT...W to NW winds 5 to 10 kt. Seas 4 to 6 ft. 
.SAT NIGHT...W to NW winds 5 to 15 kt, becoming N 10 to 15 kt.
Seas 3 to 4 ft. 
.SUN...N winds 5 to 10 kt, becoming W to SW. Seas 3 to 4 ft. 
.SUN NIGHT...SW winds 5 to 15 kt, becoming W. Seas 3 to 4 ft. 
.MON...N to NE winds 5 to 10 kt. Seas 3 to 4 ft. 
.MON NIGHT...S to SE winds less than 10 kt, becoming variable.
Seas 3 to 4 ft. 

Baltimore Canyon to the Hague Line south of 1000 fm

...GALE WARNING...

.TODAY...E winds 20 to 30 kt. Seas 6 to 10 ft. Scattered showers
and tstms with vsby 1 nm or less. 
.TONIGHT...E winds 20 to 30 kt, increasing to 25 to 35 kt. Seas
7 to 12 ft. Scattered showers and tstms. 
.FRI...E winds 20 to 30 kt. Seas 7 to 12 ft. Scattered showers
and tstms. 
.FRI NIGHT...E winds 10 to 20 kt, becoming E to SE 5 to 15 kt.
Seas 6 to 10 ft. Chance of rain. 
.SAT...S to SE winds 5 to 15 kt, becoming S to SW. Seas 4 to
7 ft. 
.SAT NIGHT...W to NW winds 10 to 20 kt, becoming N to NW. Seas
4 to 7 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 to NW winds 5 to 15 kt, becoming N to NW. Seas
3 to 5 ft. 
.MON...NE winds 10 to 20 kt. Seas 3 to 6 ft. 
.MON NIGHT...N to NE winds 10 to 20 kt. Seas 4 to 7 ft. 

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

.TODAY...W to SW winds 15 to 25 kt, becoming N to NW. Seas 4 to
7 ft. Tstms and scattered showers. 
.TONIGHT...N to NW winds 15 to 25 kt. Seas 6 to 10 ft. Scattered
showers and tstms. 
.FRI...N to NE winds 15 to 25 kt, diminishing to 5 to 15 kt.
Seas 7 to 11 ft. Scattered showers and tstms. 
.FRI NIGHT...Variable winds less than 10 kt. Seas 6 to 10 ft.
Chance of rain with vsby 1 nm or less. 
.SAT...Variable winds less than 10 kt, becoming SW. Seas 4 to
7 ft. 
.SAT NIGHT...N to NW winds 10 to 20 kt. Seas 3 to 6 ft. 
.SUN...NE winds 5 to 15 kt, becoming E to NE. Seas 3 to 6 ft. 
.SUN NIGHT...E to NE winds 5 to 15 kt, becoming NE 15 to 25 kt.
Seas 5 to 8 ft. 
.MON...NE winds 20 to 30 kt, diminishing to 10 to 20 kt. Seas
6 to 10 ft. 
.MON NIGHT...N to NE winds 10 to 20 kt. Seas 5 to 8 ft. 

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

...GALE FORCE WINDS POSSIBLE MON...

.TODAY...W to SW winds 10 to 20 kt. Seas 4 to 7 ft. Tstms and
scattered showers with vsby 1 nm or less. 
.TONIGHT...W winds 5 to 15 kt, becoming N to NW 10 to 20 kt.
Seas 4 to 7 ft. Scattered showers and tstms. 
.FRI...N to NW winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 4 to 8 ft. Showers and scattered tstms. 
.FRI NIGHT...Variable winds less than 10 kt, becoming S to SW.
Seas 4 to 7 ft. 
.SAT...SW winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3 to
6 ft. 
.SAT NIGHT...W to SW winds 10 to 20 kt, becoming NE 5 to 15 kt.
Seas 3 to 6 ft. 
.SUN...E winds 5 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...E to NE winds 15 to 25 kt. Seas 5 to 9 ft. 
.MON...NE winds 25 to 35 kt, becoming N to NE 15 to 25 kt. Seas
7 to 12 ft. 
.MON NIGHT...N to NE winds 15 to 25 kt. Seas 6 to 10 ft. 

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

.TODAY...W to SW winds 10 to 20 kt. Seas 3 to 6 ft. 
.TONIGHT...W to SW winds 5 to 15 kt. Seas 3 to 6 ft. Scattered
showers and tstms. 
.FRI...W to SW winds 5 to 15 kt, diminishing to less than 10 kt.
Seas 3 to 5 ft. Scattered showers and tstms. 
.FRI NIGHT...S to SW winds 5 to 15 kt. Seas 3 to 5 ft. 
.SAT...SW winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3 to
6 ft. 
.SAT NIGHT...W to SW winds 5 to 15 kt. Seas 3 to 6 ft. 
.SUN...SW winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3 to
6 ft. 
.SUN NIGHT...W to SW winds 10 to 20 kt. Seas 4 to 8 ft. 
.MON...N to NE winds 15 to 25 kt. Seas 6 to 10 ft. 
.MON NIGHT...N winds 15 to 25 kt. Seas 6 to 10 ft. 

.Forecaster Kells. Ocean Prediction Center.