905
FZNT31 KNHC 252113
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
513 PM EDT Wed Sep 25 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...Hurricane Helene is in the Gulf of Mexico near 22.5N
86.6W at 5 PM EDT, and is moving north at 10 kt. Maximum
sustained winds are 75 kt with gusts to 90 kt, and the minimum
central pressure is 978 mb. Tropical storm conditions and very
rough seas are still expected over the NW Caribbean tonight.
Helene will continue to move away from the NW Caribbean tonight
and Thu. Marine conditions will gradually improve across the
basin by late Thu or Thu night.

NW Caribbean W of 85W

...HURRICANE WARNING...

.TONIGHT...SW winds 25 to 35 kt, diminishing to 15 to 25 kt
after midnight. Seas 9 to 14 ft.
.THU...SW winds 10 to 20 kt. Seas 7 to 10 ft.
.THU NIGHT...S winds less than 10 kt. Seas 5 to 7 ft.
.FRI...SW winds less than 10 kt. Seas 4 to 6 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 5 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...SE winds 10 to 15 kt, shifting to E in the afternoon.
Seas 3 to 4 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 ft.
.MON...E winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less.
.MON NIGHT...E winds less than 10 kt. Seas 2 ft or less.

Caribbean N of 15N between 72W and 85W

...TROPICAL STORM WARNING...

.TONIGHT...SE winds 10 to 15 kt S of 18N, and S 15 to 25 kt
elsewhere. Seas 5 to 7 ft S of 18N, and 8 to 13 ft elsewhere.
.THU...SE winds 10 to 15 kt S of 18N, and S 15 to 25 kt
elsewhere. Seas 4 to 6 ft S of 18N, and 6 to 9 ft elsewhere.
.THU NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...S of 18N, SE winds less than 10 kt, increasing to 10 to
15 kt in the afternoon. Elsewhere, S winds 10 to 15 kt. Seas
3 to 5 ft.
.FRI NIGHT...SE winds less than 10 kt, shifting to E after
midnight. Seas 3 to 4 ft.
.SAT...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 3 ft.
.SUN...E winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.MON...E winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...SE winds less than 10 kt. Seas 2 ft or less.

Caribbean from 11N to 15N W of 72W

.TONIGHT...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...NE winds 10 to 15 kt within 90 nm of coast of
Colombia, and E less than 10 kt elsewhere. 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 in the evening,
subsiding to 2 ft or less.
.SAT...E winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.SUN...S winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...S winds less than 10 kt. Seas 2 ft or less.
.MON...S winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...S winds less than 10 kt. Seas 2 ft or less.

SW Caribbean S of 11N

.TONIGHT...SW winds less than 10 kt. Seas 2 ft or less.
.THU...S winds less than 10 kt in the morning, becoming 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. Seas 2 ft or less.
.FRI NIGHT...NW winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 2 ft or less.
.SAT...Variable winds less than 10 kt, becoming W less than
10 kt in the afternoon. Seas 2 ft or less.
.SAT NIGHT...W winds less than 10 kt. Seas 2 ft or less.
.SUN...SW winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...SW winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less.
.MON...SW winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft
in the afternoon.
.MON NIGHT...SW winds 10 to 15 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.

Caribbean between 64W and 72W

.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela,
and 3 to 5 ft elsewhere.
.THU NIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 4 ft elsewhere.
.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 3 to 4 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 4 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 ft.
.MON...SE winds less than 10 kt. Seas 3 ft.
.MON NIGHT...E winds less than 10 kt. Seas 2 ft or less.

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

.TONIGHT...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, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft.
.SAT...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. 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 3 to 5 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.MON...SE winds less than 10 kt. Seas 3 to 5 ft.
.MON NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft.

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

.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.
.THU NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft.
.FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.
.FRI NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft.
.SAT...E winds less than 10 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 3 to 5 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.MON...E winds less than 10 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS....Hurricane Helene is near 22.5N 86.6W at 5 PM EDT,
and is moving north at 10 kt. Maximum sustained winds are 75 kt
with gusts to 90 kt, and the minimum central pressure is 978 mb.
Helene will move to 24.1N 86.2W Thu morning, 27.4N 85.2W Thu
afternoon, inland near 32.1N 84.6W Fri morning, and weaken as an
extratropical cyclone near 37.1N 88.1W Sat morning. As Helene
continues to move across the eastern Gulf of Mexico tonight and
Thu, expect increasing winds and building across the waters just
E of the Florida Peninsula.

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

...TROPICAL STORM WARNING...

.TONIGHT...SE winds 15 to 20 kt. Seas 5 to 7 ft.
.THU...SE winds 15 to 25 kt. Seas 6 to 8 ft.
.THU NIGHT...S winds 20 to 30 kt. Seas 8 to 11 ft, building to
9 to 14 ft after midnight.
.FRI...S winds 20 to 30 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 9 to 14 ft, subsiding to 8 to 11 ft in the
afternoon.
.FRI NIGHT...S winds 10 to 20 kt. Seas 7 to 10 ft.
.SAT...SW winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN...W winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...SW winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.MON...W winds 10 to 15 kt. Seas 3 ft.
.MON NIGHT...W winds less than 10 kt. Seas 3 ft.

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

.TONIGHT...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 15 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 8 ft.
.FRI...S winds 10 to 20 kt W of 70W, and E less than 10 kt
elsewhere. Seas 6 to 9 ft W of 70W, and 5 to 6 ft elsewhere.
.FRI NIGHT...SE winds less than 10 kt. Seas 6 to 8 ft.
.SAT...S winds less than 10 kt. Seas 5 to 7 ft.
.SAT NIGHT...SW winds less than 10 kt. Seas 4 to 6 ft.
.SUN...W winds less than 10 kt. Seas 4 to 5 ft.
.SUN NIGHT...W winds less than 10 kt. Seas 3 to 4 ft.
.MON...W winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...W winds less than 10 kt. Seas 3 to 5 ft.

Bahamas N of 22N

.TONIGHT...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...SE winds 10 to 15 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 4 ft.
.SAT...SE winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 3 ft.
.SUN...E winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 ft.
.MON...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 3 ft in the morning, subsiding to
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

.TONIGHT...W of 70W, E winds less than 10 kt, shifting to SE
after midnight. Elsewhere, E winds less than 10 kt. Seas 5 ft.
.THU...SE winds 10 to 15 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 E less than 10 kt
elsewhere. Seas 5 to 6 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 5 to 6 ft.
.SAT...E winds less than 10 kt. Seas 4 to 5 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 4 to 5 ft.
.SUN...NE winds less than 10 kt. Seas 4 to 5 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.MON...Variable winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...Variable winds less than 10 kt, becoming SW less
than 10 kt after midnight. Seas 3 to 4 ft.

ATLC waters S of 22N W of 65W

.TONIGHT...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.
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 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 from 19N to 22N between 55W and 65W

.TONIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.THU...E winds 10 kt. Seas 4 to 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 5 to 6 ft.
.SAT...E winds 10 kt. Seas 5 to 6 ft.
.SAT NIGHT...NE winds 10 kt. Seas 5 to 6 ft.
.SUN...E winds less than 10 kt. Seas 5 to 6 ft.
.SUN NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft.
.MON...Variable winds less than 10 kt. Seas 4 to 6 ft.
.MON NIGHT...Variable winds less than 10 kt. Seas 5 ft.