000
FZNT31 KNHC 201509
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1109 AM EDT Wed Mar 20 2024

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 Atlantic from
07N to 19N between 55W and 64W

.SYNOPSIS...High pressure located to the NE of the Caribbean Sea
will support fresh to strong trade winds across the eastern and
central Caribbean through this morning. These winds will diminish
to moderate to fresh speeds later today due to a weakened pressure
gradient over the area. Fresh to strong northeast to east winds 
will continue near the coast of Colombia through Sat night, then 
diminish to moderate to fresh Sun and Sun night. These winds may 
reach near gale force Thu night. 

NW Caribbean W of 85W

.THIS AFTERNOON...NE winds less than 10 kt. Seas 3 to 5 ft. 
.TONIGHT...E winds less than 10 kt. Seas 3 to 5 ft. 
.THU...E winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft. 
.THU NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.FRI...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT...W winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.TONIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, NE winds
less than 10 kt, increasing to 10 to 15 kt after midnight. Seas
3 to 5 ft. 
.THU...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 winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...S winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 4 to 6 ft. 
.SUN NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. 

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...NE winds 15 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft. 
.THU...E winds 15 to 20 kt within 90 nm of coast of Colombia,
and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft. 
.THU 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. 
.FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.SUN NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. 

SW Caribbean S of 11N

.THIS AFTERNOON...N winds less than 10 kt. Seas 3 to 5 ft. 
.TONIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.THU NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.FRI NIGHT...NE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 5 to 7 ft. 
.SAT...N winds less than 10 kt. Seas 4 to 6 ft. 
.SAT NIGHT...N winds less than 10 kt. Seas 4 to 6 ft. 
.SUN...Variable winds less than 10 kt, becoming NW less than
10 kt in the afternoon. Seas 3 to 5 ft. 
.SUN NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. 

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.TONIGHT...NE winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft. 
.THU...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to 15 kt
elsewhere. Seas 3 to 5 ft. 
.THU NIGHT...NE winds 15 to 25 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft. 
.FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT...E winds 10 to 20 kt. Seas 5 to 6 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 6 ft. 
.SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft. 
.THU...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.THU NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. 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. Seas 5 to 7 ft. 
.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 10 to 20 kt. Seas 5 to 7 ft. 
.SUN 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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.THU...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.THU NIGHT...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 20 kt. Seas 5 to 7 ft. 
.SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 15 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. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A cold front extending from 31N54W to eastern Cuba 
will reach from near 31N52W to northern Hispaniola this evening,
with weak low pressure forming along the northern end of the 
front. The weak low will be near 30N55W by early Thu with the
trailing cold front extending to Hispaniola. By early Fri, the 
front will shift E of the area. High pressure in the wake of the
front will quickly move eastward through Fri night, allowing for
fresh to strong southerly winds to develop over the western half
of the forecast waters as low pressure tracks northeastward from
the Gulf of Mexico to inland the southeastern U.S. Fri night and
Sat. These winds will expand in coverage ahead of a cold front 
that will trail from the low over the western waters, reaching 
from near 31N72W to eastern Cuba by late Sun. Gale conditions
will be possible over most of the northern and central zones
with the southerly winds Fri and Sat. Strong to near gale 
northwest to north winds along with building seas will follow in 
behind the front. 

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

...GALE CONDITIONS POSSIBLE FRI NIGHT...

.THIS AFTERNOON...W winds less than 10 kt. Seas 4 to 5 ft. 
.TONIGHT...SW winds less than 10 kt. Seas 3 to 4 ft.
.THU...Variable winds less than 10 kt. Seas 3 ft. 
.THU NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less, building to 3 ft after
midnight. 
.FRI...SE winds 15 to 25 kt. Seas 3 to 4 ft, building to 6 to
8 ft in the afternoon. 
.FRI NIGHT...S winds 20 to 30 kt. Seas 7 to 10 ft, building to
8 to 13 ft after midnight. 
.SAT...SW winds 20 to 30 kt, becoming W 10 to 20 kt in the
afternoon. Seas 8 to 13 ft. 
.SAT NIGHT...NW winds less than 10 kt, shifting to N after
midnight. Seas 8 to 11 ft. 
.SUN...N winds 15 to 25 kt. Seas 8 to 13 ft. 
.SUN NIGHT...NE winds 15 to 25 kt. Seas 9 to 14 ft. 

ATLC waters from 27N to 31N between 65W and 77W

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

.THIS AFTERNOON...NW winds less than 10 kt W of 70W, and N 10 to
15 kt elsewhere. Seas 6 to 9 ft. 
.TONIGHT...NW winds less than 10 kt. Seas 5 to 7 ft.
.THU...NE winds less than 10 kt. Seas 4 to 6 ft. 
.THU NIGHT...W of 70W, E winds less than 10 kt, increasing to
10 to 15 kt after midnight. Elsewhere, NE winds less than 10 kt.
Seas 3 to 5 ft. 
.FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI NIGHT...SE winds 15 to 25 kt. Seas 7 to 10 ft. 
.SAT...SE winds 20 to 30 kt. Seas 9 to 14 ft. 
.SAT NIGHT...S winds 20 to 30 kt. Seas 9 to 14 ft.
.SUN...W winds 20 to 30 kt. Seas 9 to 14 ft. 
.SUN NIGHT...NW winds 10 to 20 kt. Seas 9 to 14 ft. 

Bahamas N of 22N

.THIS AFTERNOON...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.TONIGHT...NE winds 10 to 15 kt, shifting to E after midnight.
Seas 3 to 4 ft. 
.THU...E winds less than 10 kt. Seas 3 to 4 ft. 
.THU NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.FRI...E winds 15 to 25 kt. Seas 3 to 5 ft. 
.FRI NIGHT...SE winds 15 to 25 kt. Seas 4 to 6 ft. 
.SAT...S winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...W winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN...NW winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. 

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

.THIS AFTERNOON...N winds less than 10 kt. Seas 5 to 7 ft. 
.TONIGHT...NE winds less than 10 kt. Seas 6 to 8 ft.
.THU...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...E winds 15 to 20 kt. Seas 6 to 8 ft. 
.FRI NIGHT...E winds 20 to 25 kt. Seas 6 to 9 ft. 
.SAT...SE winds 10 to 20 kt. Seas 8 to 10 ft. 
.SAT NIGHT...S winds 15 to 25 kt. Seas 8 to 11 ft.
.SUN...SW winds 15 to 25 kt. Seas 8 to 11 ft. 
.SUN NIGHT...W winds 10 to 20 kt. Seas 8 to 11 ft. 

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...E winds less than 10 kt. Seas 3 to 4 ft. 
.TONIGHT...NE winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 4 to 6 ft. 
.THU...NE winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 to 5 ft. 
.THU NIGHT...NE winds 10 to 15 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 6 to 8 ft. 
.SAT...SE winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...S winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft. 

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

.THIS AFTERNOON...SE winds 10 kt. Seas 4 to 5 ft. 
.TONIGHT...Variable winds less than 10 kt, becoming E less than
10 kt after midnight. Seas 4 to 5 ft. 
.THU...E winds less than 10 kt. Seas 4 to 6 ft. 
.THU NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. 
.FRI...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT...E winds 15 to 20 kt. Seas 6 to 8 ft. 
.SAT NIGHT...E winds 15 to 20 kt. Seas 7 to 8 ft. 
.SUN...E winds 15 to 20 kt. Seas 7 to 8 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft.