456
FZNT31 KNHC 261512
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1112 AM EDT Thu Sep 26 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 near 25.5N 85.5W at 11 AM EDT,
and is moving north-northeast at 12 kt. Maximum sustained winds
are 90 kt with gusts to 110 kt, and the minimum central pressure
is 960 mb. Helene will move to 28.8N 84.3W this evening, move
inland and weaken to a tropical storm near 33.9N 84.5W Fri
morning, weaken as an extratropical cyclone near 36.4N 86.6W Fri
evening, 36.5N 87.5W Sat morning, 36.3N 87.6W Sat evening, and
36.2N 87.2W Sun morning. Helene will dissipate early Mon.
Tropical storm conditions and very rough seas will continue
today over the NW Caribbean as Helen gradually moves away from
the area. Gentle to moderate winds and slight seas will prevail
across the area beginning on Fri night through early next week.

NW Caribbean W of 85W

...TROPICAL STORM WARNING...

.THIS AFTERNOON...TROPICAL STORM CONDITIONS POSSIBLE. W winds
20 to 30 kt. Seas 5 to 7 ft.
.TONIGHT...SW winds 10 to 15 kt, shifting to S after midnight.
Seas 5 to 7 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 4 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 3 ft.
.SUN...E winds 10 to 15 kt. Seas 3 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.MON...E winds 10 to 15 kt. Seas 3 ft in the morning, subsiding
to 2 ft or less.

Caribbean N of 15N between 72W and 85W

...TROPICAL STORM WARNING...

.THIS AFTERNOON...TROPICAL STORM CONDITIONS POSSIBLE. SE winds
10 to 20 kt S of 18N, and S 20 to 30 kt elsewhere. Seas 3 to
5 ft S of 18N, and 6 to 8 ft elsewhere.
.TONIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft.
.SAT...E winds 10 to 20 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.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.MON...SE winds 10 to 15 kt. Seas 3 ft.

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...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 E 10 to 15 kt elsewhere. Seas 3 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.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 within 90 nm of coast of
Colombia, and S 10 to 15 kt elsewhere. Seas 2 ft or less.

SW Caribbean S of 11N

.THIS AFTERNOON...SW winds less than 10 kt. Seas 2 ft or less.
.TONIGHT...W winds less than 10 kt in the evening, becoming
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...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.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 2 ft or less.
.MON...SW winds 10 to 15 kt. Seas 2 ft or less.

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...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 2 ft or less Gulf of
Venezuela, and 3 to 4 ft elsewhere.
.SAT...NE 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.
.SUN NIGHT...Gulf of Venezuela, Variable winds less than 10 kt,
becoming SE less than 10 kt after midnight. Elsewhere, E winds
10 to 15 kt, diminishing to less than 10 kt after midnight. Seas
2 ft or less Gulf of Venezuela, and 3 to 4 ft elsewhere.
.MON...E winds less than 10 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 ft elsewhere.

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 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 3 to 5 ft.
.SAT NIGHT...NE 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 4 to 6 ft.
.SUN NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft.
.MON...NE winds less than 10 kt. Seas 3 to 5 ft.

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

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...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.
.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...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS....Hurricane Helene is near 25.5N 85.5W at 11 AM EDT,
and is moving north-northeast at 12 kt. Maximum sustained winds
are 90 kt with gusts to 110 kt, and the minimum central pressure
is 960 mb. Helene will move to 28.8N 84.3W this evening, move
inland and weaken to a tropical storm near 33.9N 84.5W Fri
morning, weaken as an extratropical cyclone near 36.4N 86.6W Fri
evening, 36.5N 87.5W Sat morning, 36.3N 87.6W Sat evening, and
36.2N 87.2W Sun morning. Helene will dissipate early Mon.
Elsewhere, Tropical Storm Issac, well N of the region to the NE
of Bermuda, will continue moving away from the area, but
generate N swell that will propagate into waters N of 28N and E
of 65W, producing seas of 6 to 8 ft.

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

...TROPICAL STORM WARNING...

.THIS AFTERNOON...SE winds 20 to 30 kt. Seas 6 to 8 ft.
.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. SE winds 30 to
40 kt. Seas 8 to 11 ft, building to 9 to 14 ft after midnight.
.FRI...TROPICAL STORM CONDITIONS POSSIBLE. S winds 25 to 35 kt.
Seas 9 to 14 ft, subsiding to 8 to 11 ft in the afternoon.
.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...S winds 10 to 15 kt. Seas 4 to 5 ft.
.SUN...SW winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...S winds 10 kt. Seas 3 to 4 ft.
.MON...SW winds less than 10 kt. Seas 3 ft.

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

.THIS AFTERNOON...SE winds 10 to 20 kt W of 70W, and E less than
10 kt elsewhere. Seas 5 to 6 ft.
.TONIGHT...SE winds 15 to 25 kt W of 70W, and E less than 10 kt
elsewhere. Seas 5 to 7 ft.
.FRI...S winds 15 to 25 kt W of 70W, and E 10 kt elsewhere. Seas
6 to 8 ft.
.FRI NIGHT...S winds 10 to 20 kt W of 70W, and E less than 10 kt
elsewhere. Seas 6 to 8 ft W of 70W, and 5 to 6 ft elsewhere.
.SAT...S winds 10 to 20 kt W of 70W, and NE less than 10 kt
elsewhere. Seas 5 to 6 ft.
.SAT NIGHT...S winds 10 to 15 kt W of 70W, and NW less than
10 kt elsewhere. Seas 4 to 6 ft.
.SUN...W winds 10 to 15 kt. Seas 4 to 5 ft.
.SUN NIGHT...NW winds less than 10 kt. Seas 3 to 4 ft.
.MON...N winds less than 10 kt. Seas 3 to 5 ft.

Bahamas N of 22N

.THIS AFTERNOON...SE winds 20 to 30 kt. Seas 3 to 5 ft.
.TONIGHT...SE winds 15 to 25 kt. Seas 3 to 5 ft.
.FRI...S winds 15 to 25 kt. Seas 3 to 5 ft.
.FRI NIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.SUN...E winds 10 to 15 kt. Seas 3 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.MON...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft.

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

.THIS AFTERNOON...SE winds 10 to 20 kt. Seas 5 to 6 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 5 to 6 ft.
.FRI...SE 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 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.SUN...NE winds 10 to 15 kt. Seas 4 to 5 ft.
.SUN NIGHT...NE winds 10 kt. Seas 4 to 5 ft.
.MON...NE winds 10 kt. Seas 3 to 4 ft.

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 3 to 5 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.FRI...E winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT...E winds 10 to 20 kt. Seas 4 to 6 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.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 ft.
.TONIGHT...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 to 15 kt. Seas 5 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 5 to 6 ft.
.SUN...NE winds 10 kt. Seas 5 to 6 ft.
.SUN NIGHT...NE winds 10 kt. Seas 5 to 6 ft.
.MON...N winds 10 kt. Seas 5 to 6 ft.