704
FZNT31 KNHC 250317
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1117 PM EDT Tue Sep 24 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...Tropical Storm Helene is near 19.9N 85.5W at 11 PM
EDT, and is moving west-northwest at 9 kt. Maximum sustained
winds are 50 kt with gusts to 60 kt, and the minimum central
pressure is 991 mb. Helene will strengthen to a hurricane near
21.1N 86.3W Wed morning, move to 22.7N 86.4W Wed evening, then
be near 25.4N 85.5W Thu morning. Hurricane Helene will be at
29.5N 84.2W Thu evening, then move inland and weaken to a
tropical depression in the southeastern U.S. Fri morning.

NW Caribbean W of 85W

...HURRICANE WARNING...

.OVERNIGHT...TROPICAL STORM CONDITIONS. W winds 45 to 55 kt.
Seas 8 to 13 ft.
.WED...TROPICAL STORM CONDITIONS EXPECTED. SW winds 55 to
70 kt. Seas 9 to 14 ft.
.WED NIGHT...TROPICAL STORM CONDITIONS EXPECTED. SW winds 50 to
60 kt, diminishing to 30 to 40 kt after midnight. Seas 8 to
11 ft.
.THU...SW winds 20 to 30 kt. Seas 6 to 8 ft.
.THU NIGHT...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...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 4 ft.

Caribbean N of 15N between 72W and 85W

...TROPICAL STORM WARNING...

.OVERNIGHT...TROPICAL STORM CONDITIONS. SE winds 25 to 35 kt S
of 18N, and SE 45 to 55 kt elsewhere. Seas 5 to 7 ft S of 18N,
and 8 to 11 ft elsewhere.
.WED...TROPICAL STORM CONDITIONS EXPECTED. S of 18N, SE winds
15 to 25 kt. Elsewhere, SE winds 40 to 50 kt, becoming S 30 to
40 kt in the afternoon. Seas 5 to 7 ft S of 18N, and 7 to 10 ft
elsewhere.
.WED NIGHT...TROPICAL STORM CONDITIONS EXPECTED. SE winds 10 to
20 kt S of 18N, and S 30 to 40 kt elsewhere. Seas 4 to 6 ft S of
18N, and 7 to 10 ft elsewhere.
.THU...TROPICAL STORM CONDITIONS POSSIBLE. S of 18N, SE winds
10 to 20 kt. Elsewhere, S winds 25 to 35 kt, diminishing to
15 to 25 kt in the afternoon. Seas 3 to 5 ft S of 18N, and 6 to
8 ft elsewhere.
.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.
.SAT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 4 ft.

Caribbean from 11N to 15N W of 72W

.OVERNIGHT...SE winds 10 to 20 kt. 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...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...Within 90 nm of coast of Colombia, E winds 10 to 15 kt,
diminishing to less than 10 kt in the afternoon. Elsewhere, SE
winds 10 to 15 kt. Seas 3 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.SAT...SE winds less than 10 kt within 90 nm of coast of
Colombia, and E 10 to 15 kt elsewhere. Seas 2 ft or less.
.SAT NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.SUN...SE winds 10 to 15 kt. Seas 2 ft or less.

SW Caribbean S of 11N

.OVERNIGHT...SW winds 10 to 15 kt. Seas 2 ft or less.
.WED...SW 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...S winds less than 10 kt. Seas 2 ft or less.
.THU NIGHT...Variable winds less than 10 kt, becoming W less
than 10 kt after midnight. Seas 2 ft or less.
.FRI...SW winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...NW winds less than 10 kt. Seas 2 ft or less.
.SAT...W winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...W winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less.
.SUN...SW winds 10 to 15 kt. Seas 2 ft or less.

Caribbean between 64W and 72W

.OVERNIGHT...E winds 10 to 20 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 5 ft elsewhere.
.WED...E winds 10 to 20 kt. Gulf of Venezuela, seas 3 ft in the
morning, subsiding to 2 ft or less. Elsewhere, seas 3 to 5 ft.
.WED NIGHT...E winds 10 to 20 kt. Gulf of Venezuela, seas 2 ft
or less, building to 3 ft after midnight. Elsewhere, 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...NE winds less than 10 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 to
4 ft elsewhere.
.FRI NIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 4 ft elsewhere.
.SAT...E winds less than 10 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 to
4 ft elsewhere.
.SAT NIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 4 ft elsewhere.
.SUN...SW winds less than 10 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. 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

.OVERNIGHT...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 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 3 to 5 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.SUN...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

.OVERNIGHT...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.
.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.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Tropical Storm Helene is near 19.9N 85.5W at 11 PM
EDT, and is moving west-northwest at 9 kt. Maximum sustained
winds are 50 kt with gusts to 60 kt, and the minimum central
pressure is 991 mb. Helene will strengthen to a hurricane near
21.1N 86.3W Wed morning, move to 22.7N 86.4W Wed evening, then
be near 25.4N 85.5W Thu morning. Hurricane Helene will be at
29.5N 84.2W Thu evening, then move inland and weaken to a
tropical depression near 34.0N 84.5W Fri morning.

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

...TROPICAL STORM WARNING...

.OVERNIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.WED...SE winds 10 to 20 kt. Seas 5 to 6 ft.
.WED NIGHT...SE winds 15 to 25 kt. Seas 5 to 7 ft.
.THU...SE winds 15 to 25 kt. Seas 6 to 8 ft.
.THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 30 to
40 kt. Seas 8 to 13 ft.
.FRI...S winds 20 to 30 kt. Seas 8 to 13 ft.
.FRI NIGHT...S winds 15 to 25 kt. Seas 7 to 10 ft.
.SAT...SW winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 4 to 5 ft.
.SUN...W winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.

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

.OVERNIGHT...N winds 10 to 15 kt. Seas 6 to 7 ft.
.WED...N winds 10 to 15 kt. Seas 5 to 6 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...E winds 10 to 20 kt. Seas 5 to 7 ft.
.THU NIGHT...SE winds 15 to 25 kt W of 70W, and E 10 to 15 kt
elsewhere. Seas 5 to 7 ft.
.FRI...S winds 15 to 25 kt W of 70W, and E 10 kt elsewhere. Seas
5 to 7 ft.
.FRI NIGHT...SE winds 10 to 20 kt. Seas 6 to 8 ft W of 70W, and
5 to 6 ft elsewhere.
.SAT...S winds 10 to 15 kt W of 70W, and N less than 10 kt
elsewhere. Seas 5 to 6 ft.
.SAT NIGHT...W winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 to 5 ft.
.SUN...NW winds 10 to 15 kt. Seas 4 to 5 ft.

Bahamas N of 22N

.OVERNIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft.
.WED...SE winds 15 to 25 kt. Seas 3 to 5 ft.
.WED NIGHT...SE winds 15 to 25 kt. Seas 3 to 4 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.
.FRI NIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.SUN...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft in the morning, subsiding to 2 ft or
less.

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

.OVERNIGHT...E winds 10 to 15 kt W of 70W, and N less than 10 kt
elsewhere. 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 NE less than
10 kt elsewhere. Seas 5 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...W of 70W, SE winds 10 to 20 kt. Elsewhere, E winds
10 to 15 kt, diminishing to less than 10 kt after midnight. Seas
5 to 6 ft.
.FRI...E winds 10 to 20 kt. Seas 5 to 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.SAT NIGHT...NE winds less than 10 kt. Seas 4 to 5 ft.
.SUN...NE winds less than 10 kt. Seas 4 to 5 ft.

ATLC waters S of 22N W of 65W

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

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

.OVERNIGHT...E winds less than 10 kt. Seas 4 ft.
.WED...E winds 10 kt. Seas 4 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.THU...E winds 10 to 15 kt. Seas 4 to 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 5 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 5 ft.
.SAT NIGHT...E winds 10 kt. Seas 5 ft.
.SUN...E winds 10 kt. Seas 5 to 6 ft.