Offshore Forecast
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000
FZNT34 KWBC 131442
OFFN32

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
942 AM EST Wed Dec 13 2017

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 strong low pressure system just
E of Maine will move N to the Gulf of Saint Lawrence this
afternoon, and then move over eastern Canada tonight. The next
low pressure system will move E across the northern mid-Atlantic
waters Thu, followed by yet another low pressure system Fri into
Fri night. High pressure will build E toward the region Sat, pass
E over the waters Sat night into Sun, then shift E of the waters
Sun night ahead of the next cold front.

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

...GALE WARNING...

.TODAY...W winds 30 to 40 kt. Seas 10 to 19 ft.
.TONIGHT...W winds 20 to 30 kt, becoming SW 25 to 35 kt. Seas
8 to 13 ft. Chance of rain and snow.
.THU...W winds 20 to 30 kt, becoming NW. Seas 7 to 12 ft.
.THU NIGHT...NW winds 15 to 25 kt, diminishing to 10 to 15 kt.
Seas 6 to 10 ft.
.FRI...W winds less than 10 kt. Seas subsiding to 3 to 5 ft.
.FRI NIGHT...W to NW winds 5 to 15 kt, becoming W 15 to 25 kt.
Seas 1 to 3 ft, building to 4 to 7 ft.
.SAT...W to NW winds 20 to 30 kt. Seas 7 to 12 ft.
.SAT NIGHT...NW winds 20 to 30 kt, becoming N to NW 10 to 20 kt.
Seas 7 to 11 ft.
.SUN...Variable winds less than 10 kt, becoming SW 10 to 20 kt.
Seas subsiding to 2 to 4 ft.
.SUN NIGHT...S to SW winds 10 to 20 kt. Seas 3 to 6 ft.

Baltimore Canyon to the Hague Line south of 1000 fm

...STORM WARNING...

.TODAY...W winds 35 to 45 kt. Seas 13 to 25 ft. Scattered
showers with VSBY 1 nm or less.
.TONIGHT...W to SW winds 35 to 45 kt. Seas 15 to 25 ft.
Scattered showers.
.THU...W to SW winds 40 to 50 kt, becoming W 35 to 45 kt. Seas
12 to 20 ft. Scattered showers with VSBY 1 nm or less.
.THU NIGHT...W to NW winds 20 to 30 kt. Seas 10 to 17 ft.
.FRI...W winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 7 to
12 ft.
.FRI NIGHT...W to NW winds 25 to 35 kt. Seas 7 to 12 ft.
.SAT...W to NW winds 30 to 40 kt. Seas 11 to 18 ft.
.SAT NIGHT...NW winds 25 to 35 kt, diminishing to 20 to 30 kt.
Seas 12 to 20 ft.
.SUN...NW winds 15 to 25 kt, becoming W 5 to 15 kt. Seas 8 to
14 ft.
.SUN NIGHT...S to SW winds 10 to 20 kt, increasing to 20 to
30 kt. Seas subsiding to 5 to 9 ft.

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

...GALE WARNING...

.TODAY...W winds 25 to 35 kt. Seas 12 to 24 ft. Scattered
showers.
.TONIGHT...W winds 20 to 25 kt, becoming SW 30 to 40 kt. Seas
10 to 17 ft. Chance of showers.
.THU...W winds 30 to 40 kt. Seas 10 to 18 ft. Scattered showers.
.THU NIGHT...W to NW winds 15 to 25 kt, becoming N to NW 10 to
20 kt. Seas 8 to 14 ft.
.FRI...Variable winds less than 10 kt, becoming SW 15 to 25 kt.
Seas subsiding to 4 to 8 ft.
.FRI NIGHT...W to NW winds 25 to 35 kt. Seas 8 to 14 ft.
.SAT...NW winds 20 to 30 kt. Seas 8 to 13 ft.
.SAT NIGHT...N to NW winds 20 to 30 kt. Seas 8 to 13 ft.
.SUN...N winds 10 to 20 kt, becoming S to SW. Seas 6 to 10 ft.
.SUN NIGHT...S to SW winds 20 to 30 kt. Seas 6 to 10 ft.

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

...GALE WARNING...

.TODAY...W to NW winds 25 to 35 kt, diminishing to 20 to 30 kt.
Seas 11 to 21 ft.
.TONIGHT...W to SW winds 15 to 25 kt, becoming SW 25 to 35 kt.
Seas 8 to 14 ft.
.THU...W winds 25 to 35 kt, diminishing to 20 to 30 kt. Seas
9 to 15 ft.
.THU NIGHT...W winds 15 to 25 kt. Seas 8 to 13 ft.
.FRI...W to SW winds 5 to 15 kt, increasing to 15 to 25 kt. Seas
subsiding to 4 to 7 ft.
.FRI NIGHT...W winds 25 to 35 kt, becoming W to NW 20 to 30 kt.
Seas building to 7 to 12 ft.
.SAT...NW winds 15 to 25 kt. Seas 7 to 12 ft.
.SAT NIGHT...N to NW winds 10 to 20 kt, becoming N 5 to 15 kt.
Seas 5 to 9 ft.
.SUN...N to NE winds 5 to 15 kt, becoming S to SE. Seas 4 to
8 ft.
.SUN NIGHT...S winds 20 to 30 kt. Seas 6 to 10 ft.

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

.TODAY...NW winds 15 to 25 kt. Seas 9 to 17 ft.
.TONIGHT...W to SW winds 20 to 30 kt. Seas subsiding to 7 to 11
ft.
.THU...W winds 20 to 30 kt. Seas 7 to 11 ft.
.THU NIGHT...W winds 15 to 25 kt. Seas 6 to 9 ft.
.FRI...W winds 5 to 15 kt, increasing to 15 to 25 kt. Seas 4 to
7 ft.
.FRI NIGHT...W to NW winds 20 to 30 kt. Seas 6 to 10 ft.
.SAT...N to NW winds 10 to 20 kt, diminishing to 5 to 15 kt.
Seas 6 to 10 ft.
.SAT NIGHT...N to NE winds 5 to 15 kt, becoming E to NE 5 to
10 kt. Seas 4 to 7 ft.
.SUN...E to SE winds 5 to 15 kt, becoming S to SE. Seas 3 to
5 ft.
.SUN NIGHT...S winds 20 to 30 kt. Seas building to 5 to 9 ft.

.Forecaster Mills. Ocean Prediction Center.


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