000
FZNT31 KNHC 012017
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
317 PM EST Thu Mar 1 2018

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...High pressure E of Bermuda extending SW to S Florida
will support moderate to fresh trade winds across the basin,
with strong winds pulsing at night off Colombia through Sat.
Large NE swell will impact the tropical Atlantic waters through
Sat. A very large and powerful low pressure system will develop
across the NW Atlc Fri through the weekend and produce a very
large N swell event that will penetrate the NE Caribbean
Passages Sun through late Mon, reaching the A-B-C Islands and
coastal Venezuela. 

NW Caribbean W of 85W

.TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 ft. 
.SAT...NE winds 10 to 15 kt. Seas 3 ft. 
.SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 

Caribbean N of 15N between 72W and 85W

.TONIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 to 4 ft. 
.FRI...E winds 10 to 15 kt S of 18N, and NE less than 10 kt
elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. 
.FRI NIGHT...S of 18N, NE winds 10 to 15 kt, diminishing to less
than 10 kt after midnight. Elsewhere, N winds less than 10 kt,
increasing to 10 to 15 kt after midnight. Seas 3 ft. 
.SAT...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft. 
.SAT NIGHT...N winds 10 to 20 kt. Seas 3 to 4 ft. 
.SUN...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 

Caribbean from 11N to 15N W of 72W

.TONIGHT...E winds 15 to 25 kt within 90 nm of coast of
Colombia, and E 10 to 20 kt elsewhere. Seas 6 to 9 ft within
90 nm of coast of Colombia, and 4 to 6 ft elsewhere. 
.FRI...E winds 15 to 25 kt within 90 nm of coast of Colombia,
and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. 
.FRI NIGHT...NE winds 15 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 5 to 7 ft. 
.SAT...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN...N winds less than 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 

SW Caribbean S of 11N

.TONIGHT...NE 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 4 to 6 ft. 
.SAT...N winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN...N winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON...N winds less than 10 kt. Seas 3 ft. 
.MON NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 

Caribbean between 64W and 72W

.TONIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 4 to 6 ft. 
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 10 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 4 to 6 ft. 
.SAT...NE winds 10 to 15 kt Gulf of Venezuela, and E less than
10 kt elsewhere. Seas 3 to 5 ft. 
.SAT NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. 
.SUN...Variable winds less than 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...N winds less than 10 kt. Seas 4 to 6 ft. 
.MON...N winds less than 10 kt. Seas 5 to 7 ft. 
.MON NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 5 to 7 ft. 
.TUE...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.TUE NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. 

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

.TONIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. 
.FRI...E winds 10 to 15 kt. Seas 6 to 9 ft. 
.FRI NIGHT...E winds less than 10 kt. Seas 5 to 7 ft.
.SAT...S winds less than 10 kt. Seas 5 to 7 ft. 
.SAT NIGHT...S winds less than 10 kt, shifting to SW after
midnight. Seas 4 to 6 ft. 
.SUN...SW winds 10 to 15 kt. Seas 5 to 7 ft, building to 7 to
10 ft in the afternoon. 
.SUN NIGHT...W winds 10 to 15 kt. Seas 8 to 13 ft. 
.MON...W winds 10 to 15 kt. Seas 9 to 14 ft. 
.MON NIGHT...NW winds less than 10 kt. Seas 8 to 13 ft. 
.TUE...N winds less than 10 kt. Seas 8 to 11 ft. 
.TUE NIGHT...N winds 10 to 15 kt. Seas 8 to 11 ft. 

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

.TONIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. 
.FRI...E winds 10 to 15 kt. Seas 6 to 9 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 6 to 9 ft. 
.MON...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 7 to 10 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 7 to 10 ft. 
.TUE...E winds 10 to 15 kt. Seas 6 to 9 ft. 
.TUE NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. 

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...Weakening Atlc ridge from E of Bermuda to S Florida
will shift E ahead of a cold front moving off the NE Florida 
coast tonight. The front will reach from Bermuda to SE Florida 
Fri afternoon, just ahead of a reinforcing front which will 
generate strong to gale force winds north of 24N east of 75W as 
deep low pressure moves off the mid-Atlc coast. The fronts will 
merge Sat from 22N65W to the Windward Passage then weaken and
sweep ESE across the NE Caribbean Sun before dissipating SE of
the area Mon. The largest swell event of this winter season will
accompany this system, affecting all waters E of Florida and the
Bahamas through the weekend. 

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

.TONIGHT...W winds 15 to 25 kt. Seas 6 to 9 ft. 
.FRI...NW winds 10 to 20 kt. Seas 7 to 10 ft. 
.FRI NIGHT...N winds 15 to 25 kt. Seas 7 to 10 ft. 
.SAT...N winds 15 to 25 kt. Seas 9 to 14 ft. 
.SAT NIGHT...N winds 20 to 25 kt. Seas 11 to 16 ft. 
.SUN...N winds 20 to 25 kt. Seas 14 to 19 ft. 
.SUN NIGHT...N winds 20 to 25 kt. Seas 14 to 19 ft. 
.MON...N winds 15 to 20 kt. Seas 14 to 19 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 13 to 17 ft. 
.TUE...SE winds 10 kt. Seas 12 to 15 ft. 
.TUE NIGHT...SW winds 10 to 20 kt. Seas 12 to 13 ft. 

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

...GALE WARNING...
...GALE CONDITIONS POSSIBLE...

.TONIGHT...SW winds 15 to 25 kt. Seas 6 to 9 ft. 
.FRI...W winds 20 to 30 kt W of 70W, and SW 20 to 30 kt
elsewhere. Seas 8 to 11 ft, building to 9 to 14 ft in the
afternoon. 
.FRI NIGHT...NW winds 20 to 30 kt W of 70W, and W 25 to 35 kt
elsewhere. W of 70W, seas 11 to 16 ft, building to 14 to 19 ft
after midnight. Elsewhere, seas 13 to 18 ft, building to 17 to
22 ft after midnight. 
.SAT...NW winds 20 to 30 kt W of 70W, and W 30 to 40 kt
elsewhere. W of 70W, seas 16 to 21 ft, building to 15 to 25 ft
in the afternoon. Elsewhere, seas 18 to 28 ft, building to 21 to
30 ft in the afternoon. 
.SAT NIGHT...NW winds 25 to 35 kt. Seas 18 to 28 ft. 
.SUN...NW winds 20 to 30 kt. Seas 19 to 27 ft. 
.SUN NIGHT...N winds 20 to 30 kt. Seas 20 to 26 ft. 
.MON...N winds 20 to 30 kt. Seas 19 to 25 ft. 
.MON NIGHT...N winds 15 to 25 kt. Seas 17 to 22 ft. 
.TUE...N winds 15 to 25 kt. Seas 15 to 20 ft. 
.TUE NIGHT...NW winds 10 to 15 kt. Seas 12 to 17 ft. 

Bahamas N of 22N

.TONIGHT...SW winds less than 10 kt. Seas 3 to 5 ft.
.FRI...NW winds less than 10 kt. Seas 3 to 5 ft. 
.FRI NIGHT...N winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...N winds 15 to 20 kt. Seas 7 to 10 ft.
.SUN...N winds 15 to 20 kt. Seas 8 to 11 ft. 
.SUN NIGHT...N winds 10 to 20 kt. Seas 8 to 11 ft. 
.MON...N winds 10 to 20 kt. Seas 8 to 11 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 7 to 10 ft. 
.TUE...E winds 10 to 15 kt. Seas 7 to 10 ft. 
.TUE NIGHT...E winds 10 kt. Seas 6 to 9 ft. 

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

.TONIGHT...W of 70W, SW winds less than 10 kt, increasing to
10 to 15 kt after midnight. Elsewhere, Variable winds less than
10 kt, becoming SW less than 10 kt after midnight. Seas 6 to
9 ft. 
.FRI...SW winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI NIGHT...NW winds 10 to 20 kt W of 70W, and W 15 to 25 kt
elsewhere. Seas 7 to 10 ft. 
.SAT...NW winds 15 to 25 kt W of 70W, and W 20 to 30 kt
elsewhere. Seas 10 to 15 ft. 
.SAT NIGHT...NW winds 20 to 30 kt. Seas 16 to 21 ft. 
.SUN...NW winds 20 to 30 kt. Seas 17 to 23 ft. 
.SUN NIGHT...NW winds 20 to 25 kt. Seas 18 to 22 ft. 
.MON...NW winds 15 to 25 kt. Seas 17 to 21 ft. 
.MON NIGHT...NW winds 15 to 25 kt. Seas 16 to 20 ft. 
.TUE...N winds 10 to 20 kt. Seas 14 to 18 ft. 
.TUE NIGHT...NE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 13 to 15 ft. 

ATLC waters S of 22N W of 65W

.TONIGHT...E winds 10 kt. Seas 5 to 7 ft. 
.FRI...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 5 to 7 ft. 
.FRI NIGHT...W winds less than 10 kt. Seas 4 to 6 ft.
.SAT...W winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT NIGHT...NW winds 10 to 20 kt. Seas 6 to 8 ft, building to
8 to 11 ft after midnight. 
.SUN...NW winds 10 to 20 kt. Seas 9 to 14 ft. 
.SUN NIGHT...NW winds 10 to 20 kt. Seas 9 to 14 ft. 
.MON...NW winds 10 to 20 kt. Seas 9 to 14 ft. 
.MON NIGHT...N winds 10 to 20 kt. Seas 8 to 13 ft. 
.TUE...N winds 10 to 15 kt. Seas 8 to 13 ft. 
.TUE NIGHT...NE winds 10 kt. Seas 8 to 11 ft. 

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

.TONIGHT...NE winds less than 10 kt. Seas 9 ft. 
.FRI...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 7 to 9 ft. 
.FRI NIGHT...Variable winds less than 10 kt, becoming SW less
than 10 kt after midnight. Seas 6 to 8 ft. 
.SAT...SW winds 10 to 20 kt. Seas 6 to 7 ft. 
.SAT NIGHT...SW winds 10 to 20 kt. Seas 6 to 9 ft, building to
8 to 13 ft after midnight. 
.SUN...W winds 15 to 25 kt. Seas 10 to 15 ft, building to 13 to
18 ft in the afternoon. 
.SUN NIGHT...W winds 15 to 20 kt. Seas 15 to 18 ft. 
.MON...W winds 15 to 20 kt. Seas 14 to 17 ft. 
.MON NIGHT...W winds 10 to 20 kt. Seas 12 to 15 ft. 
.TUE...W winds 10 to 15 kt. Seas 11 to 14 ft. 
.TUE NIGHT...NW winds 10 to 15 kt. Seas 11 to 13 ft.