615
FZNT31 KNHC 230837
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
437 AM EDT Thu May 23 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 strong deep-layered trough continues across the
Caribbean tonight, from central Cuba to Costa Rica, and will
begin to lift out to the NE this afternoon through Sat night.
This feature will support active weather across the central
portions of the basin, which will gradually shift NE and into
the Atlc through Fri night. Fresh E to SE winds in the
north-central Caribbean will shift northeastward today and
diminishing to moderate speeds. A broad and weak trough will
prevail across the north-central Caribbean Thu night through
Sat, yielding moderate trade winds across E portions and
moderate to fresh winds across NW portions of the basin. Smoke
due to agricultural fires in Central America continues across
the Gulf of Honduras, and spreads NW to the Yucatan coast.

NW Caribbean W of 85W

.TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...SE winds 10 to 20 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.

Caribbean N of 15N between 72W and 85W

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

Caribbean from 11N to 15N W of 72W

.TODAY...E winds 10 to 15 kt within 90 nm of coast of Colombia,
and E less than 10 kt elsewhere. Seas 4 to 6 ft.
.TONIGHT...NE winds 10 to 15 kt within 90 nm of coast of
Colombia, and E less than 10 kt elsewhere. Seas 3 to 5 ft.
.FRI...E winds less than 10 kt. Seas 3 to 5 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.SAT...E winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. 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.
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.

SW Caribbean S of 11N

.TODAY...E winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.FRI...Variable winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 3 ft.
.SAT...E winds less than 10 kt. Seas 3 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 3 ft.
.SUN...NE winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.MON...E winds less than 10 kt in the morning, becoming variable
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

.TODAY...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and
4 to 6 ft elsewhere.
.TONIGHT...E winds 10 to 15 kt. Seas 3 ft Gulf of Venezuela, and
4 to 6 ft elsewhere.
.FRI...Gulf of Venezuela, E winds less than 10 kt in the
morning, becoming variable winds less than 10 kt. Elsewhere, E
winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to
5 ft elsewhere.
.FRI NIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 5 ft elsewhere.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 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 5 ft.
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.

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

.TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft.
.SUN NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. 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 3 to 5 ft.

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

.TODAY...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 4 to 6 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 15 kt. Seas 4 to 6 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A surface trough extends from 30N70W to the central
Bahamas. Scattered showers and thunderstorms prevail across the
western Atlantic between the trough and 60W, supported by a deep
layered upper trough extending from well offshore of North
Carolina through central Cuba. The surface trough will weaken
and dissipate through Fri. A second surface trough extending
through the Windward Passage, across the SE Bahamas to 25N69W
will drift eastward through Sat. Weak low pressure is expected to
develop along the trough just N of Hispaniola tonight and shift
N-NE through Sat, moving beyond 31N Sat night. The low will be
accompanied by fresh to locally strong winds and active weather
Fri through Sat.

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

.TODAY...NE winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.FRI...Variable winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...SE winds less than 10 kt. Seas 3 ft.
.SAT...SW winds less than 10 kt. Seas 3 ft.
.SAT NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.SUN...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...SW winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...S winds 10 to 20 kt. Seas 4 to 6 ft.

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

.TODAY...Variable winds less than 10 kt, becoming SE less than
10 kt in the afternoon. Seas 3 to 4 ft.
.TONIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.FRI...Variable winds less than 10 kt W of 70W, and E 10 to
15 kt elsewhere. Seas 4 to 6 ft.
.FRI NIGHT...Variable winds less than 10 kt W of 70W, and NE
10 to 20 kt elsewhere. Seas 5 to 7 ft.
.SAT...W winds less than 10 kt. Seas 5 to 7 ft.
.SAT NIGHT...SW winds less than 10 kt. Seas 4 to 6 ft.
.SUN...SW winds less than 10 kt. Seas 3 to 5 ft.
.SUN NIGHT...SW winds less than 10 kt. Seas 3 to 4 ft.
.MON...SW winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...SW winds less than 10 kt, shifting to S after
midnight. Seas 3 to 5 ft.

Bahamas N of 22N

.TODAY...NE winds less than 10 kt. Seas 3 ft.
.TONIGHT...E winds less than 10 kt. Seas 3 ft.
.FRI...NE winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 3 ft.
.SAT...E winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less.
.SAT NIGHT...SE winds less than 10 kt. Seas 2 ft or less.
.SUN...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...SE winds less than 10 kt. Seas 2 ft or less.
.MON...SE winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...SE winds less than 10 kt. Seas 2 ft or less.

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

.TODAY...SE winds less than 10 kt W of 70W, and SE 10 to 15 kt
elsewhere. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI...NE winds less than 10 kt W of 70W, and S 10 to 20 kt
elsewhere. Seas 5 to 7 ft.
.FRI NIGHT...E winds less than 10 kt W of 70W, and W 10 to 15 kt
elsewhere. Seas 5 to 7 ft.
.SAT...N winds less than 10 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 4 to 5 ft.
.SUN...Variable winds less than 10 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.MON...E winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.

ATLC waters S of 22N W of 65W

.TODAY...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...SW winds less than 10 kt. Seas 3 to 5 ft.
.FRI NIGHT...W winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 to 5 ft.
.SAT...Variable winds less than 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.SUN...E winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.MON...E winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

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

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