000
FZNT31 KNHC 070859
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
359 AM EST Tue Mar 7 2023

Marine Weather HF Voice Broadcast for the Tropical N Atlantic
from 07N to 22N between 55W and 64W, the SW N Atlantic S of
31N W of 65W including 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 between 55W and 64W

.SYNOPSIS...Moderate trades will prevail for much of the basin
today, except for fresh to locally strong in the south-central
Caribbean. The pressure gradient will weaken today through Wed
as an Atlantic cold front sinks southward toward the NE
Caribbean islands. The cold front is forecast to reach the
Greater Antilles on Thu. The front will bring large N swell
through the NE Caribbean passages and Tropical N Atlantic waters
beginning Thu and lasting into the weekend. 

NW Caribbean W of 85W

.TODAY...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 15 kt. Seas 3 ft. 
.WED...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 3 ft. 
.THU...E winds 10 to 15 kt. Seas 3 ft. 
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.SAT...SE winds 10 to 15 kt, shifting to E in the afternoon.
Seas 3 to 4 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 

Caribbean N of 15N between 72W and 85W

.TODAY...S of 18N, E winds 10 to 15 kt. Elsewhere, E winds 10 to
15 kt, diminishing to less than 10 kt in the afternoon. Seas
3 to 5 ft. 
.TONIGHT...S of 18N, E winds 10 to 15 kt in the evening. Winds
NE after midnight. Elsewhere, E winds less than 10 kt in the
evening. Seas 3 to 5 ft. 
.WED...E winds less than 10 kt S of 18N, and E 10 to 15 kt
elsewhere. Seas 3 to 4 ft. 
.WED NIGHT...S of 18N, NE winds less than 10 kt. Elsewhere, NE
winds less than 10 kt, increasing to 10 to 15 kt after midnight.
Seas 3 to 4 ft. 
.THU...E winds 10 to 15 kt. Seas 3 to 4 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 less than 10 kt. 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. 

Caribbean from 11N to 15N W of 72W

.TODAY...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.TONIGHT...NE winds 10 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 5 to 7 ft. 
.WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.WED NIGHT...Within 90 nm of coast of Colombia, NE winds 10 to
15 kt. Elsewhere, NE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 3 to 5 ft. 
.THU...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft. 
.THU NIGHT...NE winds 10 to 15 kt. Seas 3 ft. 
.FRI...E winds 10 to 15 kt. Seas 3 to 4 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. 

SW Caribbean S of 11N

.TODAY...NE winds 10 to 20 kt. Seas 6 to 9 ft. 
.TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.WED NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 3 to 5 ft. 
.THU...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft. 
.THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI...NE winds less than 10 kt. Seas 3 to 4 ft. 
.FRI NIGHT...NE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 3 to 5 ft. 
.SAT...NE winds less than 10 kt. Seas 3 to 5 ft. 
.SAT NIGHT...NE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 3 to 5 ft. 

Caribbean between 64W and 72W

.TODAY...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft. 
.TONIGHT...NE winds 15 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft. 
.WED...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.WED NIGHT...Gulf of Venezuela, NE winds 10 to 15 kt. Elsewhere,
NE winds 10 to 15 kt, diminishing to less than 10 kt after
midnight. Seas 3 to 4 ft. 
.THU...NE winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 ft. 
.THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI NIGHT...NE 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. 

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

.TODAY...SE winds less than 10 kt. Seas 3 to 5 ft. 
.TONIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft. 
.WED...SW winds less than 10 kt. Seas 4 to 6 ft. 
.WED NIGHT...W winds 10 to 15 kt. Seas 4 to 6 ft. 
.THU...W winds 10 to 15 kt. Seas 5 to 7 ft. 
.THU NIGHT...NW winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 6 to 9 ft. 
.FRI...NW winds less than 10 kt. Seas 6 to 9 ft. 
.FRI NIGHT...NE winds less than 10 kt. Seas 6 to 8 ft. 
.SAT...NE winds less than 10 kt. Seas 6 to 8 ft. 
.SAT NIGHT...E winds less than 10 kt. Seas 6 to 8 ft. 

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

.TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.WED...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.THU...E winds less than 10 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, shifting to NE in the afternoon.
Seas 5 to 7 ft. 
.FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E 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 23N55W to 24N63W. The
front will become stationary and dissipate by tonight. Large NW 
to N swell will continue to affect the NE waters through today. 
High pressure prevails east of Florida this morning. A second 
cold front will enter the area by early this evening, and reach 
from 30N55W to 26N70W to 28.5N81W by Wed morning. Gale force 
winds are expected on both sides of the front tonight into Wed N 
of 28N and E of 70W. Behind the front, NW winds will remain fresh
to strong through late week. A significant NW to N swell event 
will follow the front, with seas of 12 to 20 ft covering most of 
the waters N of 25N and E of 74W by early Wed afternoon. Swell up
to 12 ft will reach as far south as 21N by early Thu. Looking 
ahead, the next cold front is forecast to move off the southeast 
U.S. coast by Fri night, brining strong winds to waters east of 
Florida. 

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

.TODAY...W winds 10 to 15 kt. Seas 4 to 5 ft. 
.TONIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.WED...NE winds 10 to 20 kt. Seas 6 to 9 ft. 
.WED NIGHT...NE winds 10 to 20 kt. Seas 7 to 9 ft. 
.THU...NE winds 10 to 15 kt. Seas 6 to 9 ft. 
.THU NIGHT...NE winds 10 kt. Seas 6 to 8 ft. 
.FRI...S winds 10 to 15 kt. Seas 5 to 6 ft. 
.FRI NIGHT...SW winds 10 to 20 kt, shifting to W 20 to 25 kt
after midnight. Seas 6 to 8 ft. 
.SAT...NW winds 20 to 25 kt, diminishing to 10 to 20 kt in the
afternoon. Seas 6 to 9 ft. 
.SAT NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. 

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

...GALE WARNING...

.TODAY...W of 70W, W winds 10 to 20 kt. Elsewhere, W winds 10 to
15 kt, increasing to 15 to 25 kt in the afternoon. Seas 4 to
6 ft W of 70W, and 7 to 10 ft elsewhere. 
.TONIGHT...NW winds 15 to 25 kt W of 70W, and NW 25 to 35 kt 
elsewhere. W of 70W, seas 5 to 7 ft, building to 7 to 10 ft after
midnight. Elsewhere, seas 8 to 11 ft, building to 9 to 14 ft 
after midnight. 
.WED...N winds 15 to 25 kt W of 70W, and NW 20 to 30 kt
elsewhere. Seas 8 to 13 ft W of 70W, and 12 to 17 ft elsewhere. 
.WED NIGHT...N winds 15 to 25 kt W of 70W, and NW 20 to 30 kt
elsewhere. Seas 9 to 14 ft W of 70W, and 13 to 16 ft elsewhere. 
.THU...N winds 10 to 20 kt. Seas 9 to 14 ft. 
.THU NIGHT...N winds 10 to 20 kt. Seas 8 to 12 ft.
.FRI...N winds 10 to 20 kt. Seas 8 to 13 ft. 
.FRI NIGHT...NW winds less than 10 kt, becoming SW 10 to 20 kt
after midnight. Seas 8 to 11 ft. 
.SAT...SW winds 15 to 25 kt. Seas 9 to 11 ft. 
.SAT NIGHT...NW winds 15 to 25 kt. Seas 9 to 12 ft. 

Bahamas N of 22N

.TODAY...SE winds less than 10 kt, shifting to W in the
afternoon. Seas 2 ft or less. 
.TONIGHT...N winds less than 10 kt. Seas 2 ft or less. 
.WED...N winds 10 to 15 kt. Seas 2 ft or less, building to 3 to
4 ft in the afternoon. 
.WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.FRI NIGHT...E winds less than 10 kt, shifting to SE after
midnight. Seas 3 to 5 ft. 
.SAT...SW winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT NIGHT...W winds less than 10 kt. Seas 3 to 5 ft. 

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

.TODAY...NW winds less than 10 kt. Seas 5 to 7 ft. 
.TONIGHT...NW winds 10 to 20 kt. Seas 4 to 5 ft W of 70W, and
6 to 8 ft elsewhere. 
.WED...N winds 10 to 20 kt W of 70W, and NW 15 to 25 kt
elsewhere. Seas 7 to 10 ft. 
.WED NIGHT...N winds 15 to 25 kt. W of 70W, seas 7 to 10 ft,
building to 8 to 13 ft after midnight. Elsewhere, seas 9 to
14 ft. 
.THU...N winds 10 to 20 kt. Seas 10 to 14 ft. 
.THU NIGHT...N winds 10 to 20 kt. Seas 9 to 12 ft.
.FRI...N winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 7 to 10 ft. 
.FRI NIGHT...N winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 8 to 11 ft. 
.SAT...SW winds 10 to 20 kt. Seas 8 to 10 ft. 
.SAT NIGHT...SW winds 10 to 20 kt. Seas 7 to 9 ft. 

ATLC waters S of 22N W of 65W

.TODAY...E winds less than 10 kt. Seas 3 to 5 ft. 
.TONIGHT...N winds less than 10 kt. Seas 3 to 5 ft. 
.WED...NW winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 to 5 ft. 
.WED NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft.
.THU...N winds 10 to 15 kt. Seas 6 to 9 ft. 
.THU NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. 
.FRI...N winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 5 to 7 ft. 
.FRI NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft. 
.SAT...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 5 to 7 ft. 
.SAT NIGHT...S winds less than 10 kt. Seas 5 to 7 ft. 

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

.TODAY...SW winds less than 10 kt. Seas 5 to 7 ft. 
.TONIGHT...W winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 6 to 8 ft. 
.WED...W winds 10 to 20 kt. Seas 6 to 9 ft. 
.WED NIGHT...W winds 10 to 20 kt. Seas 7 to 10 ft.
.THU...NW winds 10 to 20 kt. Seas 8 to 12 ft. 
.THU NIGHT...NW winds 10 to 15 kt. Seas 10 to 12 ft. 
.FRI...NW winds 10 to 15 kt. Seas 9 to 10 ft. 
.FRI NIGHT...N winds 10 kt. Seas 8 to 10 ft. 
.SAT...Variable winds less than 10 kt. Seas 9 to 10 ft. 
.SAT NIGHT...Variable winds less than 10 kt. Seas 9 to 10 ft.