623
FZNT31 KNHC 231551
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1151 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...Advisories for Potential Tropical Cyclone Nine have
been initiated this morning. Nine is located near 17.6N 82.0W
moving N at 5 kt. Maximum sustained winds are 25 kt with gusts
to 35 kt. Minimum central pressure is 1004 mb. Nine is expected
to move slowly N-NW today and gradually become better organized,
reaching near 18.6N 82.4W this evening as a Tropical Depression,
near 19.5N 83.7W Tue morning as a Tropical Storm, near 22.1N 96W
Wed morning as a hurricane, then continue moving northward and
intensify across the eastern Gulf of Mexico. Widespread showers
and thunderstorms will continue across the W and NW Caribbean as
Nine moves through and then exits the region.

NW Caribbean W of 85W

.THIS AFTERNOON...N winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...NE winds 15 to 25 kt. Seas 3 to 5 ft.
.TUE...TROPICAL STORM CONDITIONS POSSIBLE. N winds 20 to 30 kt.
Seas 5 to 7 ft.
.TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. W winds 35 to
45 kt. Seas 7 to 10 ft.
.WED...HURRICANE CONDITIONS POSSIBLE. SW winds 45 to 60 kt.
Seas 7 to 10 ft.
.WED NIGHT...TROPICAL STORM CONDITIONS POSSIBLE.
.THU...SW winds 20 to 30 kt, diminishing to 10 to 20 kt in the
afternoon. Seas 5 to 7 ft.
.THU NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...S winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...SE winds 20 to 30 kt. Seas 4 to 6 ft.
.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 20 to
30 kt S of 18N, and E 25 to 35 kt elsewhere. Seas 5 to 7 ft.
.TUE...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 20 to 30 kt
S of 18N, and SE 35 to 45 kt elsewhere. Seas 4 to 6 ft S of 18N,
and 6 to 9 ft elsewhere.
.TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 20 to
30 kt S of 18N, and SE 45 to 55 kt elsewhere. Seas 4 to 6 ft S
of 18N, and 7 to 10 ft elsewhere.
.WED...TROPICAL STORM CONDITIONS POSSIBLE. S of 18N, SE winds
15 to 25 kt. Elsewhere, SE winds 50 to 60 kt, becoming S 35 to
45 kt in the afternoon. Seas 4 to 6 ft S of 18N, and 6 to 9 ft
elsewhere.
.WED NIGHT...TROPICAL STORM CONDITIONS POSSIBLE.
.THU...SE winds 10 to 20 kt S of 18N, and S 15 to 25 kt
elsewhere. Seas 5 to 7 ft.
.THU NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI...SE winds 10 to 20 kt. Seas 3 to 5 ft.

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...SE winds 10 to 20 kt. Seas 3 to 4 ft.
.TONIGHT...NE winds 10 to 15 kt within 90 nm of coast of
Colombia, and SE 15 to 25 kt elsewhere. Seas 3 to 4 ft.
.TUE...SE winds 10 to 20 kt. Seas 3 to 5 ft.
.TUE NIGHT...E winds 10 to 20 kt within 90 nm of coast of
Colombia, and SE 15 to 25 kt elsewhere. Seas 3 to 5 ft.
.WED...SE winds 10 to 20 kt. Seas 3 to 5 ft.
.WED NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft.
.THU...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...E winds less than 10 kt within 90 nm of coast of
Colombia, and SE 10 to 15 kt elsewhere. Seas 3 to 4 ft.

SW Caribbean S of 11N

.THIS AFTERNOON...S winds 10 to 15 kt. Seas 3 ft, subsiding to
2 ft or less.
.TONIGHT...SW winds 10 to 15 kt. Seas 2 ft or less.
.TUE...S winds 10 to 15 kt. Seas 2 ft or less.
.TUE NIGHT...SW winds less than 10 kt, shifting to S after
midnight. Seas 2 ft or less.
.WED...S winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 2 ft or less.
.WED NIGHT...SW winds less than 10 kt. Seas 2 ft or less.
.THU...SW 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.

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds less than 10 kt Gulf of Venezuela, and
SE 10 to 15 kt elsewhere. Seas 3 to 4 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft.
.TUE...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela,
and 3 to 5 ft elsewhere.
.TUE NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.WED...E winds 10 to 20 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.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 3 to
4 ft elsewhere.

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

.THIS AFTERNOON...SE 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 10 to 15 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 20 kt. Seas 4 to 6 ft.
.FRI...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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED...E winds 10 to 15 kt. Seas 3 to 4 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.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Moderate N to NE swell will propagate into the
northern waters today, bringing an increase in seas over the
waters N of 25N through mid-week. Advisories for Potential
Tropical Cyclone Nine in the western Caribbean have been
initiated this morning. Nine is located near 17.6N 82.0W moving
N at 5 kt. Maximum sustained winds are 25 kt with gusts to
35 kt. Minimum central pressure is 1004 mb. Nine is forecast to
move northward through the eastern Gulf of Mexico Tue night
through Thu night and become a large and powerful hurricane.
This will bring increasing winds and seas to areas offshore
Florida and N of the Bahamas during that time.

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

.THIS AFTERNOON...E winds less than 10 kt. Seas 4 to 5 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.TUE...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.WED...E winds 10 to 20 kt. Seas 5 to 6 ft.
.WED NIGHT...SE winds 15 to 25 kt. Seas 5 to 7 ft.
.THU...TROPICAL STORM CONDITIONS POSSIBLE.
.THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE.
.FRI...S winds 20 to 30 kt. Seas 8 to 13 ft, subsiding to 7 to
10 ft in the afternoon.

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

.THIS AFTERNOON...N winds 10 to 15 kt. 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 to 15 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 10 to 15 kt W of 70W, and NE less than
10 kt elsewhere. Seas 5 to 6 ft.
.THU...SE winds 10 to 20 kt W of 70W, and E less than 10 kt
elsewhere. Seas 5 to 7 ft.
.THU NIGHT...SE winds 10 to 20 kt W of 70W, and E less than
10 kt elsewhere. Seas 6 to 7 ft.
.FRI...S winds 10 to 20 kt W of 70W, and SE less than 10 kt
elsewhere. Seas 5 to 7 ft.

Bahamas N of 22N

.THIS AFTERNOON...E winds less than 10 kt. Seas 3 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 ft.
.TUE...E winds 10 to 15 kt. Seas 3 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft.
.WED...SE winds 10 to 20 kt. Seas 3 to 5 ft.
.WED NIGHT...SE winds 15 to 25 kt. Seas 3 to 5 ft.
.THU...SE winds 15 to 25 kt. Seas 3 to 5 ft.
.THU NIGHT...SE winds 15 to 25 kt. Seas 3 to 4 ft.
.FRI...S winds 10 to 20 kt. Seas 3 to 4 ft.

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

.THIS AFTERNOON...NW winds less than 10 kt. Seas 4 to 5 ft.
.TONIGHT...N winds less than 10 kt. Seas 4 to 5 ft.
.TUE...N winds less than 10 kt. Seas 4 to 6 ft.
.TUE NIGHT...W of 70W, NE winds less than 10 kt, shifting to E
after midnight. Elsewhere, N winds less than 10 kt. Seas 4 to
6 ft.
.WED...E winds 10 to 15 kt W of 70W, and NE less than 10 kt
elsewhere. Seas 5 to 6 ft.
.WED NIGHT...E winds 10 to 15 kt W of 70W, and E less than 10 kt
elsewhere. Seas 5 to 6 ft.
.THU...SE winds 10 to 20 kt W of 70W, and E less than 10 kt
elsewhere. Seas 5 to 6 ft.
.THU NIGHT...SE winds 10 to 15 kt W of 70W, and E less than
10 kt elsewhere. Seas 5 to 6 ft.
.FRI...SE winds 10 to 15 kt W of 70W, and SE less than 10 kt
elsewhere. Seas 5 to 6 ft.

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...SE winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.TUE...SE 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 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 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.

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

.THIS AFTERNOON...SW winds 10 kt. Seas 4 ft.
.TONIGHT...S winds less than 10 kt. Seas 4 ft.
.TUE...S winds less than 10 kt. Seas 4 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 4 ft.
.WED...E winds less than 10 kt. Seas 4 to 5 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.THU...E winds 10 to 15 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.