Offshore Forecast
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000
FZNT31 KNHC 170905
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
505 AM EDT Wed Apr 17 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...A 1021 mb high pressure system centered northwest of
the Bahamas is forcing moderate to fresh easterly trade winds in
the south-central Caribbean, pulsing to strong speeds at night
through tonight. Fresh to occasionally strong winds will also
pulse in the Windward Passage and the lee of Cuba through early
Thu, then in the Windward Passage at night through Sun. Otherwise,
moderate to locally fresh winds and moderate seas can be expected
across much of the basin through the forecast period.

NW Caribbean W of 85W

.TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 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 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 4 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 20 kt. Seas 3 to 5 ft.

Caribbean N of 15N between 72W and 85W

.TODAY...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...E winds 10 to 20 kt. Seas 4 to 6 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...E winds 10 to 15 kt. 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 less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft.

Caribbean from 11N to 15N W of 72W

.TODAY...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.
.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...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 NIGHT...NE winds 15 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 3 to 5 ft.
.FRI...E 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. Seas 3 to 4 ft.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

SW Caribbean S of 11N

.TODAY...N winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...N winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.FRI NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.SAT...NE winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.SUN...N winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.

Caribbean between 64W and 72W

.TODAY...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 4 ft Gulf of Venezuela, and 4 to 6 ft
elsewhere.
.TONIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 4 to 6 ft.
.THU...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt
elsewhere. Gulf of Venezuela, seas 3 ft in the morning,
subsiding to 2 ft or less. Elsewhere, seas 4 to 6 ft.
.THU NIGHT...E winds 10 to 15 kt. Gulf of Venezuela, seas 3 ft
in the evening, subsiding to 2 ft or less. Elsewhere, seas 4 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...E winds 10 to 15 kt. 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 20 kt. Seas 3 to 5 ft.

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

.TODAY...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.TONIGHT...SE winds less than 10 kt. Seas 5 to 7 ft.
.THU...SE winds less than 10 kt. Seas 5 to 7 ft.
.THU NIGHT...E winds less than 10 kt. Seas 5 to 7 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 4 to 6 ft.
.SAT NIGHT...E winds 10 kt. Seas 3 to 5 ft.
.SUN...E winds 10 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

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

.TODAY...E winds 10 to 15 kt. Seas 6 to 9 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft.
.THU...E winds 10 to 15 kt. Seas 6 to 8 ft.
.THU NIGHT...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 20 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 5 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Subtropical ridge between Bermuda and the Bahamas is
forcing moderate to locally strong winds west of 70W. A surface
trough analyzed along 63W is producing scattered showers and
isolated thunderstorms between 57W and 63W. This storm activity
will continue affecting Hispaniola and Puerto Rico through early
Thu as a weak low pressure forms along it and tracks
northeastward. Rough seas north of the Leeward Islands will
gradually subside over the next few days. Later this week, high
pressure will build over the waters north of about 20N allowing
for generally tranquil marine conditions. A cold front may move
over the waters off NE Florida late Sun night. Scattered showers
and thunderstorms could precede this front.

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

.TODAY...SE winds 10 to 15 kt. Seas 4 to 5 ft.
.TONIGHT...SE winds 10 kt. Seas 4 to 5 ft.
.THU...S winds 10 kt. Seas 4 to 5 ft.
.THU NIGHT...S winds less than 10 kt. Seas 4 ft.
.FRI...S winds less than 10 kt. Seas 4 ft.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...SW winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft.

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

.TODAY...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...W of 70W, SE winds less than 10 kt. Elsewhere, 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. Seas 4 to 6 ft.
.THU NIGHT...NE winds less than 10 kt, shifting to SE after
midnight. Seas 4 to 5 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. Seas 3 to 4 ft.
.SAT NIGHT...SW winds less than 10 kt. Seas 3 to 4 ft.
.SUN...SW winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 4 to 5 ft.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft.

Bahamas N of 22N

.TODAY...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 20 kt. 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 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

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

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

ATLC waters S of 22N W of 65W

.TODAY...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 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...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...NE winds 10 to 15 kt. Seas 4 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 5 to 7 ft.

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

.TODAY...SE winds 10 to 15 kt. Seas 7 to 8 ft.
.TONIGHT...W winds less than 10 kt, shifting to E after
midnight. Seas 6 to 7 ft.
.THU...SE winds less than 10 kt, shifting to N in the afternoon.
Seas 6 to 7 ft.
.THU NIGHT...E winds less than 10 kt. Seas 5 to 6 ft.
.FRI...Variable winds less than 10 kt. Seas 5 ft.
.FRI NIGHT...Variable winds less than 10 kt, becoming E less
than 10 kt after midnight. Seas 4 to 5 ft.
.SAT...NE winds less than 10 kt. Seas 4 to 5 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.


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