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000
FZNT31 KNHC 181520
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1120 AM EDT Thu Apr 18 2024

Marine Weather HF Voice Broadcast for the Tropical N Atlantic
from 07N to 19N W of 55W, the N Atlantic from 19N to
31N W of 55W including the 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 W of 55W

.SYNOPSIS...Broad high pressure located between Bermuda and the
Bahamas will support fresh to locally strong trade winds in the
lee of Cuba and Windward Passage at night during the next few
days. These winds will gradually diminish this weekend into
early next week as a cold front moves across the western
Atlantic and the pressure gradient relaxes. High pressure that
will build in behind the front is expected to support fresh to
locally strong trade winds in the south-central Caribbean
starting Mon.

NW Caribbean W of 85W

.THIS AFTERNOON...E 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 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 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 to 4 ft.

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds 10 to 20 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 3 to 5 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...E winds 10 to 15 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 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...E 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.
.FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...Within 90 nm of coast of Colombia, NE 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.
.SAT...E winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 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 to 5 ft.

SW Caribbean S of 11N

.THIS AFTERNOON...N winds less than 10 kt, increasing to 10 to
15 kt in the afternoon. Seas 3 to 5 ft.
.TONIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...N winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.
.FRI NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.SAT...NE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.SUN...NE winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.MON...N winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 4 to 6 ft elsewhere.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...E winds 10 to 15 kt. Gulf of Venezuela, seas 3 ft in the
morning, subsiding to 2 ft or less. Elsewhere, seas 3 to 5 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 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 6 ft.

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

.THIS AFTERNOON...SE winds less than 10 kt. Seas 5 to 7 ft.
.TONIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.FRI...SE winds less than 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.SAT...E winds less than 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...E winds 10 to 15 kt. Seas 4 to 6 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

.THIS AFTERNOON...E winds 10 to 15 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 5 to 7 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...E winds 10 to 15 kt. Seas 4 to 6 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 20 kt. Seas 4 to 6 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Low pressure of 1012 mb is centered near 25N56W. A
trough extends from the low to near 18N62W. Scattered showers
and isolated thunderstorms are well east of this system. Fresh
to strong southerly winds are southeast of the low. The low will
move northeast of the forecast waters by early this afternoon. he
remainder of the SW N Atlantic is under the influence of high
pressure that supports moderate to fresh easterly winds south of
27N. Winds will diminish and seas will subside over these waters
as the low pressure continues to pull away allowing for the
pressure gradient to relax. Looking ahead, moderate to fresh
southerly winds will develop over the Florida offshore waters N
of the NW Bahamas starting Sun afternoon ahead of a cold front
forecast to move off NE Florida Sun night. These winds will reach
strong speeds Sun night and diminish to moderate to fresh speeds
Mon.

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

.THIS AFTERNOON...S winds 10 kt. Seas 4 to 5 ft.
.TONIGHT...S winds less than 10 kt. Seas 4 to 5 ft.
.FRI...SW winds less than 10 kt. Seas 4 to 5 ft.
.FRI NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 ft.
.SAT...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...SW winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft.
.MON...W winds 10 to 20 kt. Seas 4 to 6 ft.
.MON NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft.

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

.THIS AFTERNOON...NE winds less than 10 kt. Seas 4 to 6 ft.
.TONIGHT...N winds less than 10 kt, shifting to SW after
midnight. Seas 4 to 6 ft.
.FRI...W winds less than 10 kt. Seas 4 to 5 ft.
.FRI NIGHT...W winds less than 10 kt. Seas 4 ft.
.SAT...SW winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 to 4 ft.
.SAT NIGHT...SW winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 3 to 5 ft.
.SUN...SW winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft.
.MON...S winds 10 to 20 kt. Seas 5 to 7 ft.
.MON NIGHT...SW winds 10 to 20 kt. Seas 5 to 7 ft.

Bahamas N of 22N

.THIS AFTERNOON...E 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 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.MON NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.

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

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

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...NE 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 4 to 6 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 6 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 20 kt. Seas 5 to 7 ft.
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

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

.THIS AFTERNOON...NW winds less than 10 kt. Seas 6 to 7 ft.
.TONIGHT...NE winds less than 10 kt. Seas 6 to 7 ft.
.FRI...NW winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 5 to 6 ft.
.FRI NIGHT...NE winds less than 10 kt. Seas 5 to 6 ft.
.SAT...NE winds less than 10 kt. Seas 5 to 6 ft.
.SAT NIGHT...NE 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 6 to 8 ft.
.MON...E winds 10 to 15 kt. Seas 6 to 8 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.