Hurricane Force Warnings in Effect
Atlantic:  High SeasPacific:  High Seas EP1 and EPI

High Frequency Voice Broadcast (Mid Atlantic)

[Printable Version]   [Alt Link/Previous Versions]
FZNT34 KWBC 201451
OFFN32

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
951 AM EST Wed Jan 20 2021

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.

.SYNOPSIS FOR MID ATLC WATERS...A cold front will move E across
the waters today, while low pressure develops and moves through
the N portion while rapidly intensifying. The low and front will
pass E of the area later today. A high pressure ridge will build
across the waters tonight, then shift E of the area Thu. Another
developing low will move E near the N waters Thu night into Fri
while pulling a cold front over the area. The cold front will
slow down over the far S waters Fri, then drift S of the area Fri
night. Another high will build slowly E and SE towards the coast
later Fri night into Sun, then move offshore Sun night.  

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

...GALE WARNING...

.TODAY...NW winds 25 to 35 kt. Seas 6 to 10 ft. 
.TONIGHT...NW winds 20 to 30 kt, becoming W to NW 10 to 20 kt.
Seas 6 to 10 ft. 
.THU...SW winds 15 to 25 kt. Seas 4 to 7 ft. 
.THU NIGHT...W winds 15 to 25 kt. Seas 4 to 7 ft. 
.FRI...W winds 20 to 30 kt. Seas 5 to 9 ft. 
.FRI NIGHT...NW winds 20 to 30 kt. Seas 6 to 10 ft. 
.SAT...NW winds 25 to 30 kt, becoming 25 to 35 kt. Seas 6 to
11 ft. 
.SAT NIGHT...NW winds 20 to 30 kt. Seas 7 to 12 ft. 
.SUN...NW winds 15 to 25 kt. Seas 6 to 10 ft. 
.SUN NIGHT...W to NW winds 15 to 25 kt. Seas 4 to 7 ft. 

Baltimore Canyon to the Hague Line south of 1000 fm

...STORM WARNING...

.TODAY...W winds 25 to 35 kt, becoming NW 40 to 50 kt. Seas 8 to
13 ft, building to 13 to 20 ft. Rain with vsby 1 nm or less. 
.TONIGHT...N to NW winds 45 to 55 kt, becoming NW 20 to 30 kt.
Seas 13 to 21 ft. 
.THU...W to NW winds 20 to 30 kt. Seas 7 to 13 ft. 
.THU NIGHT...W to NW winds 20 to 30 kt. Seas 6 to 10 ft. 
.FRI...W winds 20 to 30 kt. Seas 7 to 12 ft. 
.FRI NIGHT...W to NW winds 20 to 30 kt. Seas 7 to 13 ft. 
.SAT...NW winds 20 to 30 kt, increasing to 25 to 35 kt. Seas
9 to 16 ft. 
.SAT NIGHT...NW winds 30 to 40 kt. Seas 12 to 20 ft. 
.SUN...NW winds 30 to 40 kt. Seas 13 to 21 ft. 
.SUN NIGHT...NW winds 30 to 40 kt. Seas 10 to 18 ft. 

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

...GALE WARNING...

.TODAY...W winds 30 to 40 kt, becoming NW. Seas 11 to 18 ft. 
.TONIGHT...NW winds 25 to 35 kt, diminishing to 15 to 25 kt.
Seas 10 to 17 ft. 
.THU...W to SW winds 10 to 20 kt, increasing to 20 to 30 kt.
Seas 6 to 10 ft. 
.THU NIGHT...W to NW winds 20 to 30 kt. Seas 6 to 10 ft. 
.FRI...W to NW winds 15 to 25 kt. Seas 6 to 10 ft. 
.FRI NIGHT...NW winds 20 to 30 kt. Seas 7 to 12 ft. 
.SAT...NW winds 20 to 30 kt, increasing to 25 to 35 kt. Seas
9 to 15 ft. 
.SAT NIGHT...NW winds 25 to 35 kt, diminishing to 20 to 30 kt.
Seas 10 to 16 ft. 
.SUN...NW winds 20 to 30 kt. Seas 9 to 15 ft. 
.SUN NIGHT...W to NW winds 15 to 25 kt. Seas 7 to 11 ft. 

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

...GALE WARNING...

.TODAY...W to NW winds 30 to 40 kt. Seas 10 to 16 ft. 
.TONIGHT...NW winds 20 to 30 kt, becoming W to NW 10 to 20 kt.
Seas 9 to 15 ft. 
.THU...W to SW winds 10 to 20 kt, increasing to 20 to 30 kt.
Seas 6 to 10 ft. 
.THU NIGHT...W to NW winds 20 to 30 kt. Seas 7 to 11 ft. 
.FRI...W to NW winds 10 to 20 kt. Seas 6 to 10 ft. 
.FRI NIGHT...W to NW winds 15 to 25 kt. Seas 5 to 9 ft. 
.SAT...NW winds 20 to 30 kt. Seas 6 to 11 ft. 
.SAT NIGHT...N to NW winds 20 to 30 kt. Seas 9 to 14 ft. 
.SUN...N to NW winds 15 to 25 kt. Seas 7 to 13 ft. 
.SUN NIGHT...W to NW winds 10 to 20 kt. Seas 6 to 10 ft. 

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

...GALE WARNING...

.TODAY...W winds 25 to 35 kt, becoming W to NW 20 to 30 kt. Seas
7 to 12 ft. 
.TONIGHT...NW winds 15 to 25 kt, becoming W to NW 5 to 15 kt.
Seas 7 to 12 ft. 
.THU...W winds 10 to 20 kt, increasing to 20 to 30 kt. Seas 5 to
8 ft. 
.THU NIGHT...W winds 20 to 30 kt. Seas 7 to 11 ft. Chance of
rain. 
.FRI...W to NW winds 15 to 25 kt. Seas 6 to 11 ft. 
.FRI NIGHT...W winds 20 to 30 kt, becoming N 10 to 20 kt. Seas
4 to 8 ft. 
.SAT...N to NW winds 15 to 25 kt. Seas 5 to 8 ft. 
.SAT NIGHT...N to NE winds 15 to 25 kt. Seas 6 to 10 ft. 
.SUN...N to NE winds 5 to 15 kt, becoming variable. Seas 6 to
10 ft. 
.SUN NIGHT...Variable winds 5 to 15 kt, becoming S to SW 10 to
20 kt. Seas 5 to 8 ft. 

.Forecaster Kosier. Ocean Prediction Center.