000
FZNT31 KNHC 120854
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
354 AM EST Tue Dec 12 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 broad stationary front will gradually dissipate
from the near the Windward Passage to the SW Caribbean through
the middle of the week. Strong to near gale force northerly
winds W of the front will gradually diminish from the NW through
Thu. Strong nocturnal trades will resume along the NW coast of
Colombia on Wed and Thu nights, with near gale force trades
possible Sat night. 

NW Caribbean W of 85W

.TODAY...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.TONIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.WED...N winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 3 to 4 ft. 
.THU...NE winds less than 10 kt. Seas 3 to 4 ft. 
.THU NIGHT...NE winds 10 to 15 kt, shifting to E after midnight.
Seas 3 ft. 
.FRI...NE winds less than 10 kt, shifting to N in the afternoon.
Seas 3 to 4 ft. 
.FRI NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 

Caribbean N of 15N between 72W and 85W

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

Caribbean from 11N to 15N W of 72W

...GALE CONDITIONS POSSIBLE E OF 80W SAT NIGHT...

.TODAY...W of 80W, N winds 20 to 25 kt. Seas 7 to 11 ft. E of 
80W, E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...W of 80W, N winds 20 to 25 kt. Seas 6 to 9 ft. E of 
80W, N to NE winds 5 to 10 kt. Seas 4 to 6 ft in NW to N swell. 
.WED...W of 80W, N winds 20 to 25 kt. Seas 6 to 9 ft. E of 80W, 
NE to E winds 10 to 15 kt Within 90 nm of coast of Colombia, and 
NE to E 5 to 10 kt elsewhere. Seas 4 to 6 ft in NW to N swell. 
.WED NIGHT...W of 80W, N to NE winds 20 to 25 kt. Seas 6 to 9 ft.
E of 80W, NE to E winds 15 to 20 kt Within 90 nm of coast of 
Colombia, and NE to E 10 to 15 kt elsewhere. Seas 4 to 6 ft in NW
to N swell. 
.THU...W of 80W, NE winds 15 to 20 kt. Seas 5 to 7 ft. E of 
80W, NE to E winds 15 to 20 kt. Seas 4 to 6 ft. 
.THU NIGHT...W of 80W, NE winds 15 to 20 kt. Seas 3 to 5 ft. E 
of 80W, NE to E winds 20 to 25 kt. Seas 6 to 9 ft. 
.FRI...W of 80W, NE to E winds 10 to 15 kt. Seas 3 to 5 ft. E 
of 80W, E winds 20 to 25 kt. Seas 6 to 9 ft. 
.FRI NIGHT...W of 80W, NE winds 15 to 20 kt. Seas 5 to 7 ft. E 
of 80W, NE to E winds 20 to 25 kt. Seas 7 to 9 ft. 
.SAT...W of 80W, NE to E winds 15 to 20 kt. Seas 5 to 7 ft. E 
of 80W, NE to E winds 20 to 25 kt. Seas 8 to 11 ft in E swell.
.SAT NIGHT...W of 80W, NE to E winds 15 to 20 kt. Seas 6 to 9 ft. 
E of 80W, NE to E winds 25 to 35 kt. Seas 8 to 13 ft in NE to E 
swell. 

SW Caribbean S of 11N

.TODAY...N winds 15 to 20 kt. Seas 6 to 9 ft.
.TONIGHT...NW to N winds 15 to 20 kt. Seas 6 to 8 ft.
.WED...N to NE winds 15 to 20 kt. Seas 6 to 8 ft.
.WED NIGHT...N to NE winds 15 to 20 kt. Seas 6 to 9 ft.
.THU...NE winds 15 to 20 kt. Seas 5 to 7 ft. 
.THU NIGHT...N to NE winds 15 to 20 kt. Seas 4 to 6 ft. 
.FRI...N to NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI NIGHT...N to NE winds 15 to 20 kt. Seas 5 to 7 ft. 
.SAT...NE winds 15 to 20 kt. Seas 6 to 9 ft. 
.SAT NIGHT...NE winds 20 to 25 kt. Seas 7 to 10 ft. 

Caribbean between 64W and 72W

.TODAY...SE winds less than 10 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 5 ft elsewhere. 
.TONIGHT...NE winds 10 to 15 kt Gulf of Venezuela, and E less
than 10 kt elsewhere. Seas 3 ft. 
.WED...E winds less than 10 kt. Seas 3 to 4 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI NIGHT...E winds 10 to 20 kt. 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. 

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

.TODAY...SE winds less than 10 kt. Seas 4 to 6 ft. 
.TONIGHT...SE winds less than 10 kt. Seas 4 to 6 ft.
.WED...SE winds less than 10 kt. Seas 4 to 6 ft. 
.WED NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 to 6 ft. 
.THU...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. 
.SAT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 

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

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

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...A broad stationary front from 27N65W to the Windward
Passage will begin to move E again on Wed and gradually
dissipate across the tropical waters N of Puerto Rico on Wed 
night through Fri. A cold front will move offshore NE Florida 
later today, and reach from Bermuda to Central Cuba on Wed night,
then weaken from 22N65W to the Windward Passage on Thu and Fri. 
Another cold front will move off the NE Florida coast on Fri, and
race E reaching a position from 27N65W to Central Cuba on Sat. 
Gale force winds will be possible N of 27N with the front.

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

...GALE CONDITIONS POSSIBLE FRI NIGHT...

.TODAY...N of 29N, SW winds 20 to 30 kt. Elsewhere, NW winds 5 to
10 kt, becoming W 20 to 30 kt behind front. Seas 5 to 8 ft. 
.TONIGHT...W winds 20 to 30 kt. Seas 8 to 13 ft.
.WED...W to NW winds 20 to 25 kt. Seas 9 to 14 ft. 
.WED NIGHT...W winds 10 to 15 kt. Seas 7 to 10 ft. 
.THU...SW to W winds 15 to 20 kt. Seas 6 to 8 ft. 
.THU NIGHT...SW to W winds 15 to 20 kt. Seas 5 to 7 ft. 
.FRI...SW winds 20 to 25 kt. Seas 6 to 8 ft. 
.FRI NIGHT...SW to W winds 25 to 35 kt. Seas 8 to 13 ft. 
.SAT...NW winds 20 to 25 kt. Seas 8 to 13 ft. 
.SAT NIGHT...N to NE winds 10 to 15 kt. Seas 6 to 9 ft. 

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

...GALE CONDITIONS POSSIBLE FRI NIGHT AND SAT...

.TODAY...NE to E winds 10 to 15 kt. Seas 5 to 7 ft. 
.TONIGHT...SW to W winds 20 to 25 kt. Seas 5 to 8 ft. 
.WED...W winds 20 to 25 kt. Seas 8 to 13 ft. 
.WED NIGHT...W to NW winds 15 to 20 kt. Seas 9 to 14 ft. 
.THU...W winds 10 to 15 kt. Seas 8 to 11 ft. 
.THU NIGHT...SW to W winds 15 to 20 kt. Seas 6 to 9 ft. 
.FRI...S to SW winds 15 to 20 kt. Seas 6 to 9 ft. 
.FRI NIGHT...S to SW winds 20 to 30 kt, increasing to 25 to 35 kt
late. Seas 7 to 10 ft in W to NW swell, building to 8 to 13 ft
late.
.SAT...W to NW winds 20 to 30 kt, except 25 to 35 kt in the
morning. Seas 9 to 14 ft. 
.SAT NIGHT...N winds 15 to 20 kt. Seas 9 to 14 ft. 

Bahamas N of 22N

.TODAY...NW to N winds 10 to 15 kt. ATLC Exposures, seas 4 to
6 ft. Elsewhere, seas 3 to 4 ft in the morning, subsiding to
2 ft or less. 
.TONIGHT...NW winds 15 to 20 kt. ATLC Exposures, seas 3 to 5 ft.
Elsewhere, seas 2 ft or less, building to 3 to 4 ft. 
.WED...NW to N winds 15 to 20 kt. Seas 3 to 5 ft. 
.WED NIGHT...N winds 10 to 15 kt, diminishing to 5 kt late. ATLC
Exposures, seas 3 to 5 ft. Elsewhere, seas 3 ft, subsiding to
2 ft or less. 
.THU...NE to E winds 5 to 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less. 
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft or less. 
.FRI...SE to S winds 5 to 10 kt, shifting to SW in the
afternoon. Seas 2 ft or less, building to 3 ft in the afternoon.
.FRI NIGHT...W to NW winds 15 to 20 kt. Seas 3 to 4 ft. 
.SAT...N to NE winds 15 to 20 kt. Seas 3 to 4 ft. 
.SAT NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft.

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

.TODAY...W of 70W, N winds 10 to 15 kt, shifting to NW in the
afternoon. Elsewhere, S winds less than 10 kt, increasing to
10 to 15 kt in the afternoon. Seas 4 to 6 ft. 
.TONIGHT...W winds 10 to 20 kt. Seas 5 to 7 ft. 
.WED...NW winds 10 to 15 kt. Seas 6 to 9 ft. 
.WED NIGHT...NW winds 10 to 15 kt, shifting to N after midnight.
Seas 6 to 9 ft. 
.THU...Variable winds less than 10 kt. Seas 6 to 9 ft. 
.THU NIGHT...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...S winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT...W winds 10 to 15 kt, shifting to N in the afternoon. Seas
6 to 8 ft. 
.SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. 

ATLC waters S of 22N W of 65W

.TODAY...NE winds 15 to 20 kt, except E to SE winds E of front. 
Seas 3 to 5 ft.
.TONIGHT...NW to N winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED...N winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED NIGHT...N to NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.THU...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SAT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SAT NIGHT...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. 

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

.TODAY...SE winds 10 kt in the morning, becoming variable winds
less than 10 kt. Seas 5 to 6 ft. 
.TONIGHT...SE winds less than 10 kt. Seas 5 to 6 ft.
.WED...S winds 10 kt. Seas 5 to 6 ft. 
.WED NIGHT...Variable winds less than 10 kt, becoming SE less
than 10 kt after midnight. Seas 5 to 6 ft. 
.THU...E winds 10 kt. Seas 5 to 6 ft. 
.THU NIGHT...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 7 to 8 ft. 
.SAT...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.