455 
FZNT31 KNHC 090851
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
351 AM EST Thu Jan 9 2025

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...A surface ridge extending southward from the eastern
Gulf of Mexico will sustain moderate to fresh N to NE winds and
moderate seas across the western Caribbean through early Fri.
Afterward, the high is going to build eastward into the western
Atlantic through early next week, causing these winds and seas
to also shift eastward into the central Caribbean. In addition,
winds at the south-central basin will pulse to strong at night
through early next week. 

NW Caribbean W of 85W

.TODAY...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.SAT...S winds less than 10 kt. Seas 3 to 4 ft. 
.SAT NIGHT...Variable winds less than 10 kt. Seas 3 ft in the
evening, subsiding to 2 ft or less. 
.SUN...E winds less than 10 kt. 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 to 4 ft. 
.MON NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft. 

Caribbean N of 15N between 72W and 85W

.TODAY...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.TONIGHT...NE 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...SE 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. 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. Seas 3 to 5 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 

Caribbean from 11N to 15N W of 72W

.TODAY...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.TONIGHT...E winds 15 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft. 
.FRI...E winds 10 to 20 kt within 90 nm of coast of Colombia,
and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. 
.FRI NIGHT...E winds 20 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 20 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. Seas 5 to 7 ft. 
.SUN...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. 

SW Caribbean S of 11N

.TODAY...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...NE winds 10 to 15 kt, shifting to N in the afternoon.
Seas 4 to 5 ft. 
.FRI NIGHT...N winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft. 
.SAT...NE winds 10 to 15 kt, shifting to N in the afternoon.
Seas 4 to 6 ft. 
.SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 

Caribbean between 64W and 72W

.TODAY...Gulf of Venezuela, NE winds 10 to 15 kt. Elsewhere, E
winds 10 to 15 kt, diminishing to less than 10 kt in the
afternoon. Seas 3 to 4 ft. 
.TONIGHT...E winds 10 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft. 
.FRI...E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela,
and 3 to 5 ft elsewhere. 
.FRI NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and NE 10 to
20 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 15 kt. Seas 4 to 6 ft. 
.SUN...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 5 ft. 
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 

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

.TODAY...SE winds less than 10 kt. Seas 4 to 6 ft. 
.TONIGHT...SE winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 to 5 ft. 
.FRI...NW winds less than 10 kt. Seas 4 to 6 ft. 
.FRI NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. 
.SAT...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 7 to 10 ft. 
.SAT NIGHT...E winds less than 10 kt. Seas 7 to 10 ft. 
.SUN...E winds less than 10 kt. Seas 6 to 9 ft. 
.SUN NIGHT...NE winds less than 10 kt. Seas 6 to 8 ft. 
.MON...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 5 to 7 ft. 
.MON NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 to 6 ft. 

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

.TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 5 to 7 ft. 
.TONIGHT...E winds less than 10 kt. Seas 4 to 6 ft. 
.FRI...E winds less than 10 kt. Seas 3 to 5 ft. 
.FRI NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 to 6 ft. 
.SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. 
.SUN...E winds 10 to 15 kt. Seas 6 to 9 ft. 
.SUN NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. 
.MON...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A cold front extends from 31N44W to 19N70W. Fresh to
strong winds will persist ahead and behind the front, mainly N
of 29N through today. Meanwhile, large long-period NW swell will
continues to spread across the area N of 26N. A reinforcing cold
front is expected to bring strong to gale-force W to NW winds 
north of 27N and east of 70W this afternoon through Sat. This 
will also prolong very rough to high seas in the central and 
eastern Atlantic through the weekend. In the long term, a third 
frontal system this weekend could bring yet another round of 
increasing winds and seas east of Florida and northeast of the 
Bahamas. 

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

...GALE CONDITIONS POSSIBLE FRI NIGHT...

.TODAY...N winds 15 to 25 kt. Seas 7 to 10 ft. 
.TONIGHT...N winds 10 to 20 kt. Seas 7 to 10 ft. 
.FRI...E winds less than 10 kt. Seas 6 to 8 ft. 
.FRI NIGHT...S winds 10 to 20 kt, increasing to 20 to 35 kt 
after midnight. Seas 4 to 6 ft, building to 6 to 9 ft after 
midnight. 
.SAT...W winds 20 to 30 kt. Seas 8 to 11 ft. 
.SAT NIGHT...NW winds 10 to 20 kt. Seas 6 to 9 ft. 
.SUN...NW winds 10 kt. Seas 3 to 5 ft. 
.SUN NIGHT...NW winds 10 kt. Seas 3 to 4 ft. 
.MON...NW winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...NW winds 10 to 20 kt. Seas 5 to 7 ft. 

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

...GALE WARNING...

.TODAY...NW winds 20 to 30 kt W of 70W, and W 25 to 35 kt
elsewhere. Seas 11 to 16 ft. 
.TONIGHT...NW winds 15 to 25 kt W of 70W, and NW 20 to 30 kt
elsewhere. Seas 11 to 16 ft W of 70W, and 15 to 19 ft elsewhere.
.FRI...W of 70W, N winds 10 to 20 kt, diminishing to less than
10 kt in the afternoon. Elsewhere, NW winds 15 to 25 kt. Seas
9 to 14 ft W of 70W, and 14 to 19 ft elsewhere. 
.FRI NIGHT...W of 70W, W winds less than 10 kt, becoming SW
10 to 20 kt after midnight. Elsewhere, NW winds 10 to 20 kt.
Seas 8 to 11 ft W of 70W, and 11 to 16 ft elsewhere. 
.SAT...SW winds 15 to 25 kt. Seas 8 to 11 ft. 
.SAT NIGHT...W winds 15 to 25 kt. Seas 8 to 13 ft. 
.SUN...NW winds 10 to 15 kt. Seas 8 to 11 ft. 
.SUN NIGHT...NW winds less than 10 kt. Seas 6 to 9 ft. 
.MON...NW winds less than 10 kt. Seas 5 to 7 ft. 
.MON NIGHT...NW winds 10 to 20 kt. Seas 5 to 7 ft. 

Bahamas N of 22N

.TODAY...N winds 10 to 20 kt. Seas 3 to 5 ft. 
.TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...NE winds 10 to 15 kt, shifting to E in the afternoon.
Seas 4 to 6 ft. 
.FRI NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT...S winds 10 to 15 kt. Seas 3 to 5 ft. 
.SAT NIGHT...SW winds less than 10 kt. Seas 3 ft. 
.SUN...Variable winds less than 10 kt. Seas 2 ft or less. 
.SUN NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. 
.MON...NE winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...NE winds less than 10 kt. Seas 3 ft. 

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

.TODAY...NW winds 15 to 25 kt. Seas 8 to 11 ft. 
.TONIGHT...N winds 15 to 25 kt W of 70W, and NW 15 to 25 kt
elsewhere. Seas 9 to 14 ft. 
.FRI...N winds 10 to 15 kt W of 70W, and N 10 to 20 kt
elsewhere. Seas 8 to 13 ft W of 70W, and 11 to 16 ft elsewhere. 
.FRI NIGHT...NE winds less than 10 kt. Seas 8 to 11 ft W of 70W,
and 10 to 14 ft elsewhere. 
.SAT...S winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 7 to 10 ft. 
.SAT NIGHT...SW winds 10 to 15 kt. Seas 6 to 9 ft. 
.SUN...W winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 5 to 7 ft. 
.SUN NIGHT...Variable winds less than 10 kt. Seas 5 to 7 ft. 
.MON...N winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 5 to 7 ft. 
.MON NIGHT...N winds 10 kt. Seas 4 to 6 ft. 

ATLC waters S of 22N W of 65W

.TODAY...N winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 4 to 6 ft. 
.TONIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...N winds 10 to 15 kt. Seas 6 to 9 ft. 
.FRI NIGHT...NE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 6 to 9 ft. 
.SAT...SE winds less than 10 kt. Seas 6 to 9 ft. 
.SAT NIGHT...SE winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 5 to 7 ft. 
.SUN...Variable winds less than 10 kt. Seas 4 to 6 ft. 
.SUN NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. 
.MON...NE winds less than 10 kt. Seas 3 to 5 ft. 
.MON NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. 

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

.TODAY...SW winds less than 10 kt. Seas 6 to 8 ft. 
.TONIGHT...W winds 10 to 15 kt. Seas 6 to 8 ft. 
.FRI...NW winds 10 to 15 kt. Seas 8 to 11 ft. 
.FRI NIGHT...N winds 10 to 15 kt. Seas 9 to 14 ft. 
.SAT...NE winds 10 kt. Seas 10 to 14 ft. 
.SAT NIGHT...Variable winds less than 10 kt. Seas 9 to 13 ft. 
.SUN...Variable winds less than 10 kt. Seas 7 to 10 ft. 
.SUN NIGHT...Variable winds less than 10 kt, becoming N 10 kt
after midnight. Seas 6 to 8 ft. 
.MON...NE winds 10 kt in the morning, becoming variable winds
less than 10 kt. Seas 5 to 6 ft. 
.MON NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft.