Offshore Forecast
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000
FZNT31 KNHC 141512
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1012 AM EST Thu Dec 14 2017

Marine Weather HF Voice Broadcast for the Tropical N Atlantic
from 07N to 22N between 55W and 64W, the SW N Atlantic S of
31N W of 65W including Bahamas, and the Caribbean Sea.

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 Caribbean Sea and Tropical N ATLC from 07N to 19N
between 55W and 64W

.SYNOPSIS...A trough extending from just SW of Jamaica to
central Panama will dissipate by late tonight. Seas to 8 ft in
NE swell near the trough will subsiding to less than 8 ft.
Strong nocturnal trades along the coast of Colombia will
intensify to gale force beginning Friday night then diminish to
just below gale force early on Saturday afternoon before pulsing
back up to gale force at night on Saturday and Sunday.

NW Caribbean W of 85W

.TODAY...Variable winds less than 10 kt, becoming NE less than
10 kt in the afternoon. Seas 3 to 5 ft in the morning, subsiding
to 2 ft or less.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...E winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.

Caribbean N of 15N between 72W and 85W

.TODAY...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...E winds 10 to 20 kt. Seas 5 to 7 ft S of 18N, and 3 to
4 ft elsewhere.
.FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft S of 18N, and
3 to 4 ft elsewhere.
.SAT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN...E winds 15 to 25 kt. Seas 6 to 9 ft.
.SUN NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.MON...E winds 15 to 25 kt. Seas 6 to 9 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.

Caribbean from 11N to 15N W of 72W

...GALE WARNING WITHIN 90 NM OF COAST OF COLOMBIA...

.TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...E winds 20 to 25 kt within 90 nm of coast of
Colombia, and NE 15 to 25 kt elsewhere. Seas 7 to 10 ft within
90 nm of coast of Colombia, and 5 to 7 ft elsewhere.
.FRI...E winds 15 to 25 kt. Seas 6 to 8 ft.
.FRI NIGHT...E winds 30 to 35 kt within 90 nm of coast of
Colombia, and E 15 to 25 kt elsewhere. Seas 9 to 12 ft within 90
nm of coast of Colombia, and 6 to 9 ft elsewhere.
.SAT...E winds 15 to 25 kt. Seas 8 to 11 ft.
.SAT NIGHT...E winds 15 to 25 kt, except 25 to 35 kt within
90 nm of coast of Colombia. Seas 8 to 12 ft, EXCEPT 10 to 15 ft
within 90 nm of coast of Colombia.
.SUN...E winds 15 to 25 kt, except 20 to 30 kt W of 72W and
25 to 35 kt within 90 nm of coast of Colombia. Seas 8 to 13 ft,
except 10 to 15 ft within 90 nm of coast of Colombia.
.SUN NIGHT...E winds 20 to 30 kt, except 30 to 35 kt within
90 nm of coast of Colombia. Seas 8 to 13 ft, except 10 to 15 ft
within 90 nm of coast of Colombia.
.MON...E winds 15 to 25 kt, except 30 to 35 kt within 60 nm of
coast of Colombia. Seas 8 to 13 ft, except 10 to 15 ft S of 14N
between 74W and 77W.
.MON NIGHT...E winds 15 to 25 kt, except 25 to 35 kt near coast
of Colombia. Seas 8 to 12 ft, except 10 to 14 ft near coast of
Colombia.

SW Caribbean S of 11N

.TODAY...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.TONIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft.
.SUN...NE winds 15 to 25 kt. Seas 8 to 11 ft.
.SUN NIGHT...NE winds 15 to 25 kt. Seas 8 to 13 ft.
.MON...E winds 15 to 25 kt. Seas 8 to 13 ft.
.MON NIGHT...NE winds 10 to 20 kt. Seas 8 to 11 ft.

Caribbean between 64W and 72W

.TODAY...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft.
.FRI...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt
elsewhere. Seas 4 to 6 ft.
.FRI NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft.
.SAT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN...E winds 15 to 25 kt. Seas 6 to 9 ft.
.SUN NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.MON...E winds 10 to 20 kt. Seas 6 to 9 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.

Offshore Leeward Islands and adjacent ATLC waters from 15N to
19N W of 55W

.TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...E winds 10 to 15 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.

Offshore Windward Islands and adjacent ATLC waters from 07N to
15N W of 55W

.TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.MON...E winds 10 to 15 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...A stalling cold front from 27N65W to across the SE
Bahamas and eastern Cuba will gradually dissipate through early
Friday. A ridge will build along 25N in the wake of the front. A
weak cold front will move off the NE Florida coast early on
Friday, reach from Bermuda to S Florida Saturday, then will
stall and gradually dissipate along 25N through early next week
as high pres from the SE United States builds eastward across
the area.

ATLC waters from 27N to 31N W of 77W

.TODAY...W winds 10 to 20 kt. Seas 4 to 6 ft.
.TONIGHT...W winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...W winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...W winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...N winds 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...NE winds 10 kt. Seas 3 to 4 ft.
.SUN...SE winds 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...SE winds 10 kt. Seas 3 to 4 ft.
.MON...S winds 10 kt. Seas 3 to 4 ft.
.MON NIGHT...S winds 10 kt. Seas 3 to 4 ft.

ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W

.TODAY...W winds 10 to 20 kt. W of 70W, seas 7 to 10 ft.
Elsewhere, seas 9 to 13 ft, subsiding to 7 to 10 ft in the
afternoon.
.TONIGHT...W winds 10 to 15 kt. Seas 6 to 8 ft.
.FRI...W of 70W, SW winds 10 to 15 kt. Elsewhere, SW winds
10 to 15 kt in the afternoon. Seas 5 to 7 ft.
.FRI NIGHT...W winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT...NW winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft.
.SUN...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 5 to 7 ft.
.MON...SE winds less than 10 kt. Seas 4 to 6 ft.
.MON NIGHT...S winds less than 10 kt. Seas 4 to 6 ft.

Bahamas N of 22N

.TODAY...Variable winds less than 10 kt. Seas 3 ft.
.TONIGHT...E winds less than 10 kt. Seas 2 ft or less.
.FRI...E winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...NE winds 10 to 20 kt. Seas 3 to 4 ft.
.SUN...E winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 ft.

ATLC waters from 22N to 27N between 65W and the Bahamas

.TODAY...Variable winds less than 10 kt. Seas 6 to 8 ft.
.TONIGHT...E winds less than 10 kt. Seas 5 to 7 ft.
.FRI...SE winds less than 10 kt. Seas 5 to 7 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.SAT...NE winds less than 10 kt. Seas 4 to 5 ft.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.MON...E winds 10 to 15 kt. Seas 6 to 8 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.

ATLC waters S of 22N W of 65W

.TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.

ATLC waters from 19N to 22N between 55W and 65W

.TODAY...E winds 10 kt. Seas 5 to 7 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 7 to 8 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft.
.SAT...NE winds 10 to 15 kt. Seas 6 to 8 ft.
.SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 7 ft.
.SUN...NE winds 10 to 20 kt. Seas 6 to 7 ft.
.SUN NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.MON...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.MON NIGHT...NE winds 10 to 15 kt. Seas 7 to 8 ft.



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