117 
FZNT31 KNHC 151501
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1101 AM EDT Thu Aug 15 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 Ernesto is near 25.0N 69.2W at 11 AM EDT,
and is moving north at 12 kt. Maximum sustained winds are 75 kt 
with gusts to 90 kt, and the minimum central pressure is 975 mb. 
Ernesto will move to 26.6N 68.7W this evening, 28.5N 67.5W Fri 
morning, 30.3N 66.3W Fri evening, then pass very near 
Bermuda at 32.0N 65.5W Sat morning, and continuing northward to
33.6N 65.1W Sat evening and beyond. A weak frontal boundary 
extends from near Bermuda to central Florida and will drift 
southward across the northwestern part of the area, and stall to 
the NW of Ernesto by Fri, producing moderate to fresh NE winds 
behind it. Large swell from Ernesto will spread W of 75W today 
through Fri night before subsiding Sat through Sun. Conditions 
should improve across the basin Sun into early next week in the 
wake of Ernesto.

NW Caribbean W of 85W

.THIS AFTERNOON...E winds less than 10 kt. Seas 2 ft or less. 
.TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less. 
.FRI...E winds less than 10 kt. Seas 2 ft or less. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. 
.SAT...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 2 ft or less. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. 
.SUN...E winds 10 to 15 kt. Seas 2 ft or less. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. 
.MON...E winds 10 to 15 kt. Seas 2 ft or less. 

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 2 ft or less. 
.TONIGHT...E winds 10 to 20 kt. Seas 2 ft or less, building to
3 ft after midnight. 
.FRI...E winds 10 to 20 kt. Seas 3 to 4 ft. 
.FRI NIGHT...S of 18N, E winds 10 to 20 kt. Elsewhere, E winds
10 to 15 kt, diminishing to less than 10 kt after midnight. Seas
3 to 4 ft. 
.SAT...E winds 10 to 20 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. 
.SAT NIGHT...E winds 10 to 20 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. 
.SUN...E winds 10 to 20 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and
2 ft or less elsewhere. 
.MON...E winds 10 to 20 kt. Seas 4 to 6 ft S of 18N, and
2 ft or less elsewhere. 

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...NE winds 10 to 15 kt. Seas 3 ft. 
.TONIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.FRI...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.FRI NIGHT...NE winds 15 to 25 kt. Seas 3 to 5 ft. 
.SAT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...E winds 15 to 25 kt. Seas 4 to 6 ft. 

SW Caribbean S of 11N

.THIS AFTERNOON...NE winds less than 10 kt. Seas 3 ft. 
.TONIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 3 ft. 
.FRI...N winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 3 ft. 
.FRI NIGHT...N winds less than 10 kt. Seas 2 ft or less. 
.SAT...W winds less than 10 kt. Seas 2 ft or less, building to
3 ft in the afternoon. 
.SAT NIGHT...NW winds less than 10 kt. Seas 3 to 4 ft. 
.SUN...W winds less than 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. 
.MON...W winds less than 10 kt. Seas 3 to 4 ft in the morning,
subsiding to 2 ft or less. 

Caribbean between 64W and 72W

.THIS AFTERNOON...Gulf of Venezuela, SE winds 10 to 15 kt,
shifting to W in the afternoon. Elsewhere, SE winds 15 to 25 kt.
Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. 
.TONIGHT...NE winds 15 to 25 kt Gulf of Venezuela, and E 15 to
25 kt elsewhere. Gulf of Venezuela, seas 2 ft or less, building
to 3 to 4 ft after midnight. Elsewhere, seas 4 to 6 ft. 
.FRI...E winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt
elsewhere. Seas 3 to 4 ft Gulf of Venezuela, and 4 to 6 ft
elsewhere. 
.FRI NIGHT...NE winds 15 to 25 kt Gulf of Venezuela, and E 15 to
25 kt elsewhere. 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. Gulf of Venezuela, seas 2 ft
or less, building to 3 ft after midnight. Elsewhere, seas 3 to
5 ft. 
.SUN...NE winds 10 to 15 kt Gulf of Venezuela, and E 15 to 25 kt
elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft
elsewhere. 
.SUN NIGHT...E winds 15 to 25 kt. Gulf of Venezuela, seas 2 ft
or less, building to 3 to 4 ft after midnight. Elsewhere, seas
4 to 6 ft. 
.MON...E winds 15 to 25 kt. Seas 4 to 6 ft. 

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

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Hurricane Ernesto is near 25.0N 69.2W at 11 AM EDT,
and is moving north at 12 kt. Maximum sustained winds are 75 kt 
with gusts to 90 kt, and the minimum central pressure is 975 mb.
Ernesto will continue to move away from the Caribbean. In its 
wake, high pressure will gradually build westward along 22N late 
Fri into early next week, bringing a return to a more typical 
trade wind flow across the basin. A tropical wave along 54W is 
accompanied by scattered thunderstorms and gusty winds. This wave
will move across the Tropical N Atlantic waters later today 
through tonight, and into the eastern Caribbean Fri while 
weakening. Fresh to strong winds will pulse in the south-central 
Caribbean through Fri evening, then return Sun night and expand 
across the central Caribbean into early next week.

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

.THIS AFTERNOON...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.TONIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. 
.FRI...NE winds 10 to 15 kt. Seas 7 to 10 ft. 
.FRI NIGHT...NE winds 10 to 15 kt. Seas 7 to 9 ft. 
.SAT...NE winds 10 to 15 kt. Seas 6 to 8 ft. 
.SAT NIGHT...E winds less than 10 kt. Seas 6 to 7 ft. 
.SUN...SW winds 10 to 15 kt. Seas 6 to 7 ft. 
.SUN NIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON...SW winds 10 to 20 kt. Seas 5 to 7 ft. 

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

...HURRICANE WARNING...

.THIS AFTERNOON...TROPICAL STORM CONDITIONS. NE winds 20 to
30 kt W of 70W, and SE 25 to 35 kt elsewhere. Seas 7 to 10 ft W
of 70W, and 9 to 14 ft elsewhere. 
.TONIGHT...HURRICANE CONDITIONS EXPECTED. W of 70W, NE winds
30 to 40 kt, seas 10 to 15 ft. Elsewhere, E winds 50 to 60 kt,
increasing to 75 to 85 kt after midnight,Seas 13 to 18 ft,
building to 16 to 26 ft after midnight. 
.FRI...HURRICANE CONDITIONS EXPECTED. W of 70W, N winds 15 to
25 kt. Elsewhere, E winds 75 to 95 kt, becoming NW 80 to 90 kt 
in the afternoon. Seas 11 to 16 ft W of 70W, and 21 to 31 ft 
elsewhere.

.FRI NIGHT...HURRICANE CONDITIONS EXPECTED. N winds 15 to 25 kt
W of 70W, and W 75 to 90 kt elsewhere. W of 70W, seas 9 to
14 ft. Elsewhere, seas 21 to 31 ft, subsiding to 18 to 28 ft
after midnight. 
.SAT...HURRICANE CONDITIONS POSSIBLE. W of 70W, N winds 10 to
20 kt, seas 8 to 12 ft. Elsewhere, W winds 50 to 60 kt,
diminishing to 30 to 40 kt in the afternoon,Seas 16 to 21 ft,
subsiding to 13 to 18 ft in the afternoon. 
.SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. 
.SUN...W of 70W, NW winds 10 to 15 kt, shifting to W in the
afternoon. Elsewhere, SW winds 15 to 25 kt. Seas 6 to 9 ft W of
70W, and 8 to 13 ft elsewhere.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 6 to 9 ft. 
.MON...SW winds 10 to 20 kt. Seas 5 to 7 ft. 

Bahamas N of 22N

.THIS AFTERNOON...NW winds 10 to 15 kt. Seas 3 to 5 ft. 
.TONIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...NW winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI NIGHT...N winds 10 to 15 kt, shifting to NE after midnight.
Seas 3 to 5 ft. 
.SAT...NE winds less than 10 kt. Seas 3 to 4 ft. 
.SAT NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. 
.SUN...SE winds less than 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. 
.MON...S winds 10 to 15 kt. Seas 3 to 4 ft. 

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

...HURRICANE WARNING...

.THIS AFTERNOON...HURRICANE CONDITIONS. W of 70W, NW winds
40 to 50 kt. Elsewhere, SE winds 95 to 115 kt, becoming S 65 to
75 kt in the afternoon. Seas 11 to 16 ft W of 70W, and 17 to
22 ft elsewhere. 
.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. NW winds 30 to
40 kt W of 70W, and SW 65 to 75 kt elsewhere. Seas 11 to 16 ft W
of 70W, and 16 to 21 ft elsewhere. 
.FRI...TROPICAL STORM CONDITIONS EXPECTED. W of 70W, NW winds
15 to 25 kt. Elsewhere, SW winds 40 to 50 kt, diminishing to
25 to 35 kt in the afternoon. Seas 8 to 13 ft W of 70W, and
11 to 16 ft elsewhere. 
.FRI NIGHT...NW winds 10 to 20 kt W of 70W, and SW 20 to 30 kt
elsewhere. Seas 7 to 10 ft W of 70W, and 9 to 14 ft elsewhere. 
.SAT...W of 70W, NW winds 10 to 15 kt, diminishing to less than
10 kt in the afternoon. Elsewhere, SW winds 15 to 25 kt. Seas
7 to 10 ft. 
.SAT NIGHT...W of 70W, NW winds less than 10 kt, shifting to SW
after midnight. Elsewhere, SW winds 10 to 20 kt. Seas 6 to 9 ft.
.SUN...S winds less than 10 kt W of 70W, and S 10 to 15 kt
elsewhere. Seas 6 to 8 ft. 
.SUN NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON...SE winds 10 to 15 kt. Seas 5 to 6 ft. 

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...SW winds 20 to 30 kt. Seas 6 to 9 ft. 
.TONIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI...S winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 10 to 15 kt, shifting to SE after midnight.
Seas 3 to 5 ft. 
.SAT...SE winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 to 5 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON...E winds 10 to 20 kt. Seas 3 to 5 ft. 

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

.THIS AFTERNOON...SE winds 10 to 20 kt. Seas 6 to 8 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.FRI...SE winds 10 to 15 kt. Seas 4 to 5 ft. 
.FRI NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. 
.SAT...SE winds 10 to 15 kt. Seas 4 to 5 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.MON...E winds 10 to 15 kt. Seas 5 to 6 ft.