350
FZNT31 KNHC 190313
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1113 PM EDT Wed Sep 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...A weak pressure gradient across the Caribbean Sea
will support moderate to fresh winds and moderate seas across
the E and central Caribbean, and light to gentle winds and
slight to moderate seas across the NW and SW portions of the
basin through at least Sat. Looking ahead, a broad area of low
pressure could form late this weekend or early next week over
the western and northwestern Caribbean Sea. Thereafter, some
slow development of this system is possible through the middle
of next week while it moves slowly to the north or northwest
over the northwestern Caribbean Sea or the southeastern Gulf of
Mexico. There is a low chance of tropical cyclone formation in
the next seven days.

NW Caribbean W of 85W

.OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.THU...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.FRI...E 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 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...NE winds 10 to 15 kt. Seas 3 to 5 ft.

Caribbean N of 15N between 72W and 85W

.OVERNIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 4 to 6 ft S of 18N, and 2 ft or less elsewhere.
.THU...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 4 to 6 ft S of 18N, and 2 ft or less elsewhere.
.THU NIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere.
.FRI...E winds 10 to 15 kt S of 18N, and Variable less than
10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less
elsewhere.
.FRI NIGHT...E winds less than 10 kt. Seas 3 ft.
.SAT...E winds 10 to 15 kt. Seas 3 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...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft.

Caribbean from 11N to 15N W of 72W

.OVERNIGHT...NE winds 15 to 20 kt within 90 nm of coast of
Colombia, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft.
.THU...E winds 10 to 20 kt. Seas 4 to 6 ft.
.THU NIGHT...NE 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, diminishing to less than 10 kt
after midnight. 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 4 ft.
.SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...S winds less than 10 kt. Seas 3 to 5 ft.
.MON...SE winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...SE winds less than 10 kt. Seas 3 ft.

SW Caribbean S of 11N

.OVERNIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.THU...Variable winds less than 10 kt, becoming W less than
10 kt in the afternoon. Seas 3 to 4 ft.
.THU NIGHT...W winds less than 10 kt. Seas 3 to 4 ft.
.FRI...Variable winds less than 10 kt, becoming SW less than
10 kt in the afternoon. Seas 3 to 4 ft.
.FRI NIGHT...SW winds less than 10 kt. Seas 3 to 4 ft.
.SAT...SW winds less than 10 kt. Seas 3 ft.
.SAT NIGHT...SW winds less than 10 kt. Seas 3 ft.
.SUN...SW winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...S winds less than 10 kt. Seas 3 to 4 ft.
.MON...S winds 10 to 15 kt. Seas 3 to 4 ft.
.MON NIGHT...S winds less than 10 kt. Seas 3 ft.

Caribbean between 64W and 72W

.OVERNIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.THU...Gulf of Venezuela, E winds 10 to 20 kt, becoming NE less
than 10 kt in the afternoon. Elsewhere, 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...Gulf of Venezuela, E winds 10 to 15 kt, shifting to S in
the afternoon,Seas 3 ft in the morning, subsiding to 2 ft or
less. Elsewhere, 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. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

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

.OVERNIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft.
.THU...SW winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...SW winds less than 10 kt. Seas 3 to 5 ft.
.FRI...SW winds less than 10 kt. Seas 3 to 5 ft.
.FRI NIGHT...S winds less than 10 kt. Seas 3 to 5 ft.
.SAT...SW winds less than 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...SW winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 to 5 ft.
.SUN...Variable winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.MON...Variable winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.

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

.OVERNIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.THU...SE winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...SE 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...E winds 10 to 15 kt. Seas 4 to 6 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.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A non-tropical low pressure system located just E of
the forecast area near 26N53W is producing fresh to strong winds
and rough seas across the NE waters, mainly N of 25N and E of
60W. These marine conditions will persist tonight and Thu, and
gradually diminish on Fri. Expect pulsing fresh trades off the
coast of Hispaniola through tonight. Otherwise, gentle to
moderate winds and slight to moderate seas will prevail across
the rest of the basin.

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

.OVERNIGHT...S winds 10 kt. Seas 4 to 5 ft.
.THU...W winds less than 10 kt. Seas 4 to 5 ft.
.THU NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.FRI...NE winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.SAT...NE winds less than 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.MON...NE winds less than 10 kt. Seas 4 to 6 ft.
.MON NIGHT...NE winds 10 kt. Seas 6 to 8 ft.

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

.OVERNIGHT...Variable winds less than 10 kt. Seas 5 ft.
.THU...W winds less than 10 kt. Seas 4 to 5 ft.
.THU NIGHT...Variable winds less than 10 kt, becoming SW less
than 10 kt after midnight. Seas 4 to 5 ft.
.FRI...Variable winds less than 10 kt. Seas 4 to 5 ft.
.FRI NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft.
.SAT...Variable winds less than 10 kt. Seas 4 to 5 ft.
.SAT NIGHT...NW winds less than 10 kt. Seas 4 to 6 ft.
.SUN...NW winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft.
.MON...NW winds 10 to 15 kt. Seas 6 to 9 ft.
.MON NIGHT...NW winds 10 to 15 kt. Seas 7 to 10 ft.

Bahamas N of 22N

.OVERNIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.THU...SE winds less than 10 kt. Seas 3 to 4 ft in the morning,
subsiding to 2 ft or less.
.THU NIGHT...SE winds less than 10 kt. Seas 2 ft or less,
building to 3 ft after midnight.
.FRI...S winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...Variable winds less than 10 kt, becoming SE less
than 10 kt after midnight. Seas 2 ft or less.
.SAT...S winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.SUN...Variable winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...NE winds less than 10 kt. Seas 2 ft or less.
.MON...NE 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 22N to 27N between 65W and the Bahamas

.OVERNIGHT...NE winds less than 10 kt. Seas 5 ft.
.THU...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 4 to 5 ft.
.THU NIGHT...E winds less than 10 kt. Seas 4 to 5 ft.
.FRI...E winds less than 10 kt. Seas 4 to 5 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 4 to 5 ft.
.SAT...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 4 to 5 ft.
.SAT NIGHT...Variable winds less than 10 kt. Seas 4 ft.
.SUN...Variable winds less than 10 kt, becoming W less than
10 kt in the afternoon. Seas 3 to 4 ft.
.SUN NIGHT...NW winds less than 10 kt. Seas 3 to 5 ft.
.MON...NW winds less than 10 kt. Seas 4 to 5 ft.
.MON NIGHT...NW winds less than 10 kt. Seas 4 to 6 ft.

ATLC waters S of 22N W of 65W

.OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...E winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...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 5 ft.
.SAT...SE winds less than 10 kt in the morning, becoming
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...Variable winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...Variable winds less than 10 kt. Seas 3 ft.
.MON...Variable winds less than 10 kt. Seas 3 ft.
.MON NIGHT...Variable winds less than 10 kt. Seas 3 ft.

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

.OVERNIGHT...N winds 10 kt. Seas 5 to 7 ft.
.THU...NW winds less than 10 kt. Seas 5 to 7 ft.
.THU NIGHT...NW winds less than 10 kt. Seas 5 to 7 ft.
.FRI...W winds less than 10 kt. Seas 5 to 6 ft.
.FRI NIGHT...W winds less than 10 kt. Seas 5 to 6 ft.
.SAT...W winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 5 ft.
.SAT NIGHT...W winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 4 to 5 ft.
.SUN...W winds less than 10 kt. Seas 4 to 5 ft.
.SUN NIGHT...W winds less than 10 kt. Seas 4 to 5 ft.
.MON...Variable winds less than 10 kt. Seas 4 ft.
.MON NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.