678
FZNT31 KNHC 230859
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
459 AM EDT Mon Sep 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...Showers and thunderstorms are beginning to show
signs of organization with a broad low pressure centered over
the NW Caribbean. Environmental conditions appear favorable for
further development of this system, and a tropical depression or
storm is likely to form over the next couple of days as the low
moves north across the NW Caribbean and into the SE Gulf of
Mexico. Regardless of development, heavy rain and increasing
winds and seas are expected across portions of the NW Caribbean
early this week. There is a high chance of tropical formation
within the next 48 hours.

NW Caribbean W of 85W

.TODAY...N winds less than 10 kt. Seas 3 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...NW winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE NIGHT...W winds 10 to 20 kt. Seas 6 to 9 ft.
.WED...SW winds 15 to 25 kt. Seas 6 to 9 ft.
.WED NIGHT...SW winds 10 to 20 kt. Seas 6 to 8 ft.
.THU...SW winds 10 to 20 kt. Seas 5 to 7 ft.
.THU NIGHT...S winds less than 10 kt. Seas 4 to 6 ft.
.FRI...SE winds less than 10 kt. Seas 3 to 5 ft.
.FRI NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft.

Caribbean N of 15N between 72W and 85W

.TODAY...SE winds 10 to 20 kt. Seas 3 to 5 ft.
.TONIGHT...SE winds 10 to 20 kt S of 18N, and SE 15 to 25 kt
elsewhere. Seas 5 to 7 ft.
.TUE...SE winds 10 to 20 kt S of 18N, and SE 15 to 25 kt
elsewhere. Seas 5 to 7 ft.
.TUE NIGHT...SE winds 10 to 20 kt S of 18N, and SE 20 to 30 kt
elsewhere. Seas 6 to 9 ft.
.WED...SE winds 15 to 25 kt. Seas 6 to 9 ft.
.WED NIGHT...SE winds 15 to 25 kt. Seas 6 to 8 ft.
.THU...SE winds 15 to 25 kt. Seas 6 to 8 ft.
.THU NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.

Caribbean from 11N to 15N W of 72W

.TODAY...Within 90 nm of coast of Colombia, SE winds 10 to
15 kt, diminishing to less than 10 kt in the afternoon.
Elsewhere, S winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.TUE...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.FRI...SE winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 3 ft.

SW Caribbean S of 11N

.TODAY...S winds 10 to 15 kt, shifting to SW in the afternoon.
Seas 2 ft or less.
.TONIGHT...Variable winds less than 10 kt, becoming S less than
10 kt after midnight. Seas 2 ft or less.
.TUE...S winds less than 10 kt. Seas 2 ft or less.
.TUE NIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.WED...SW winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 2 ft or less.
.WED NIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.THU...Variable winds less than 10 kt. Seas 2 ft or less.
.THU NIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.FRI...Variable winds less than 10 kt, becoming S less than
10 kt in the afternoon. Seas 2 ft or less.
.FRI NIGHT...SW winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 2 ft or less.

Caribbean between 64W and 72W

.TODAY...Gulf of Venezuela, E winds less than 10 kt in the
morning, becoming variable winds less than 10 kt. Elsewhere, SE
winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to
4 ft elsewhere.
.TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 4 ft elsewhere.
.TUE...Gulf of Venezuela, E winds 10 to 15 kt, diminishing to
less than 10 kt in the afternoon. Elsewhere, E winds 10 to
15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft
elsewhere.
.TUE NIGHT...E winds 10 to 15 kt. Gulf of Venezuela, seas 2 ft
or less, building to 3 ft after midnight. Elsewhere, seas 3 to
5 ft.
.WED...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds 10 to 15 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 4 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

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

.TODAY...Variable winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.TUE...E winds less than 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.WED...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...E winds 10 to 15 kt. 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 less than 10 kt. Seas 4 to 6 ft.

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

.TODAY...E winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...E winds less than 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.WED...E winds less than 10 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds 10 to 15 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 5 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A set of northerly swell will propagate into the
northern waters today, bringing an increase in seas over the
waters N of 28N through mid-week. Low pressure, possibly a
tropical cyclone, is forecast to move northward through the
eastern Gulf of Mexico late this week, which may bring
increasing winds and seas to areas offshore Florida and N of the
Bahamas.

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

.TODAY...E winds less than 10 kt. Seas 4 to 5 ft.
.TONIGHT...E winds 10 kt. Seas 4 to 5 ft.
.TUE...E winds 10 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.WED...E winds 10 to 15 kt. Seas 5 to 6 ft.
.WED NIGHT...SE winds 15 to 25 kt. Seas 5 to 7 ft.
.THU...SE winds 20 to 30 kt. Seas 6 to 9 ft.
.THU NIGHT...SE winds 20 to 30 kt. Seas 7 to 10 ft.
.FRI...S winds 15 to 25 kt. Seas 8 to 11 ft.
.FRI NIGHT...S winds 15 to 25 kt. Seas 6 to 9 ft.

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

.TODAY...N winds less than 10 kt W of 70W, and NW 10 to 15 kt
elsewhere. Seas 5 to 7 ft.
.TONIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft.
.TUE...N winds 10 to 15 kt. Seas 6 to 8 ft.
.TUE NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft.
.WED...N winds 10 kt. Seas 6 to 7 ft.
.WED NIGHT...E winds less than 10 kt. Seas 5 to 7 ft.
.THU...E winds less than 10 kt. Seas 5 to 7 ft.
.THU NIGHT...SE winds 10 to 15 kt. Seas 6 to 7 ft.
.FRI...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft.

Bahamas N of 22N

.TODAY...Variable winds less than 10 kt, becoming E less than
10 kt in the afternoon. Seas 2 ft or less, building to 3 ft in
the afternoon.
.TONIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 ft.
.TUE...E winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft.
.THU...SE winds 10 to 20 kt. Seas 3 to 5 ft.
.THU NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft.
.FRI...S winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...SE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 3 to 4 ft.

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

.TODAY...NW winds less than 10 kt. Seas 4 to 5 ft.
.TONIGHT...N winds less than 10 kt. Seas 4 to 6 ft.
.TUE...Variable winds less than 10 kt. Seas 4 to 6 ft.
.TUE NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft.
.WED...NE winds less than 10 kt. Seas 5 to 6 ft.
.WED NIGHT...E winds less than 10 kt. Seas 5 to 6 ft.
.THU...E winds less than 10 kt. Seas 5 to 6 ft.
.THU NIGHT...SE winds less than 10 kt. Seas 5 to 6 ft.
.FRI...SE winds less than 10 kt. Seas 5 to 6 ft.
.FRI NIGHT...SE winds 10 kt. Seas 5 to 6 ft.

ATLC waters S of 22N W of 65W

.TODAY...Variable winds less than 10 kt. Seas 3 ft.
.TONIGHT...E winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 ft.
.TUE...SE winds less than 10 kt. Seas 3 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.WED...E winds less than 10 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds 10 to 15 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 4 to 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

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

.TODAY...SW winds less than 10 kt. Seas 4 ft.
.TONIGHT...Variable winds less than 10 kt. Seas 4 ft.
.TUE...Variable winds less than 10 kt. Seas 4 ft.
.TUE NIGHT...Variable winds less than 10 kt, becoming E less
than 10 kt after midnight. Seas 4 ft.
.WED...E winds less than 10 kt. Seas 4 to 5 ft.
.WED NIGHT...E winds 10 kt. Seas 4 to 5 ft.
.THU...E winds 10 kt. Seas 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 6 ft.
.FRI NIGHT...E winds 10 kt. Seas 6 ft.