000
FZNT31 KNHC 080323
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1023 PM 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...Gentle to locally moderate winds will prevail across
most of the basin tonight and Wed due to a weak pressure
gradient as an Atlantic cold front sinks southward toward the
Caribbean islands. The cold front is forecast to reach the
Greater Antilles on Thu, then reach from the Leeward Islands to
Jamaica to the western tip of Cuba early Fri before dissipating
Fri night. The front will bring large N swell through the NE
Caribbean passages and Tropical N Atlantic waters beginning Thu
and lasting into the weekend. Also, fresh N to NE winds are
expected behind the front over the far N Caribbean. 

NW Caribbean W of 85W

.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 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 ft. 
.SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. 

Caribbean N of 15N between 72W and 85W

.TONIGHT...S of 18N, NE winds less than 10 kt. Elsewhere, E
winds less than 10 kt, shifting to NE after midnight. Seas 3 to
5 ft. 
.WED...S of 18N, E winds less than 10 kt. Elsewhere, NE winds
10 to 15 kt, shifting to E in the afternoon. Seas 3 to 4 ft. 
.WED NIGHT...E winds less than 10 kt S of 18N, and NE 10 to
15 kt elsewhere. Seas 3 ft. 
.THU...S of 18N, E winds 10 to 15 kt, diminishing to less than
10 kt in the afternoon. Elsewhere, 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. 
.SUN...SE winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less. 

Caribbean from 11N to 15N W of 72W

.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 within 90 nm of coast of Colombia,
and NE less than 10 kt elsewhere. 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. 
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 

SW Caribbean S of 11N

.TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.WED...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.WED NIGHT...N winds less than 10 kt. 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 10 to 15 kt. Seas 3 to 4 ft. 
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.SAT...N winds less than 10 kt. Seas 3 to 5 ft. 
.SAT NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. 
.SUN...NE winds less than 10 kt. Seas 3 to 5 ft. 
.SUN NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. 

Caribbean between 64W and 72W

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

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

.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 less than 10 kt, increasing to 10 to 15 kt
after midnight. 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. 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...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 6 to 9 ft. 
.SAT NIGHT...SE winds less than 10 kt. Seas 6 to 8 ft. 
.SUN...SE winds less than 10 kt. Seas 6 to 8 ft. 
.SUN NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. 

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

.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, diminishing to less than 10 kt
after midnight. Seas 3 to 5 ft. 
.THU...E winds less than 10 kt. Seas 4 to 6 ft. 
.THU NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. 
.FRI...E winds less than 10 kt. 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 6 to 8 ft. 
.SUN...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Westerly winds are increasing across the waters N of
28N as a cold front enters the area this evening. The front will
reach from 30N55W to the NW Bahamas to central Florida by Wed 
morning, and from 23N55W to the N coast of Hispaniola to central
Cuba by Thu morning. Gale force winds are expected on either 
side of the front tonight, mainly N of 28N between 55W and 70W. 
Winds are forecast to diminish below gale force over the NE 
waters by late Wed afternoon, but strong NW winds will persist N 
of 27N and E of 65W through Fri. A significant NW to N swell 
event will follow the front, with seas of 12 to 21 ft covering 
most of the waters N of 25N and E of 74W by early Wed afternoon. 
Seas of 12 ft will reach as far south as 21N Thu morning. Looking
ahead, the next cold front is forecast to move off the southeast
U.S. coast by Fri afternoon, brining strong to near gale force 
winds to waters east of Florida. This system will move eastward 
across the area during the weekend.

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

.TONIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.WED...NE winds 15 to 20 kt. Seas 6 to 9 ft. 
.WED NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. 
.THU...NE winds 10 to 15 kt. Seas 7 to 9 ft. 
.THU NIGHT...NE winds 10 kt. Seas 6 to 8 ft. 
.FRI...S winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI NIGHT...W winds 15 to 25 kt. Seas 6 to 9 ft. 
.SAT...NW winds 20 to 25 kt, diminishing to 10 to 20 kt in the
afternoon. Seas 7 to 10 ft. 
.SAT NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. 
.SUN...Variable winds less than 10 kt, becoming S less than
10 kt in the afternoon. Seas 5 to 7 ft. 
.SUN NIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. 

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

...GALE WARNING...
...GALE CONDITIONS POSSIBLE SAT...

.TONIGHT...NW winds 15 to 25 kt W of 70W, and W 25 to 35 kt 
elsewhere. W of 70W, seas 6 to 9 ft. 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 11 to 16 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 13 ft W of 70W, and 11 to
15 ft elsewhere. 
.THU NIGHT...N winds 10 to 20 kt. Seas 8 to 13 ft.
.FRI...NW winds 10 to 20 kt. Seas 8 to 13 ft. 
.FRI NIGHT...SW winds 10 to 15 kt, increasing to 15 to 25 kt
after midnight. Seas 8 to 11 ft. 
.SAT...W winds 20 to 30 kt. Seas 9 to 12 ft. 
.SAT NIGHT...NW winds 15 to 25 kt. Seas 9 to 13 ft. 
.SUN...NW winds 10 to 20 kt. Seas 9 to 14 ft. 
.SUN NIGHT...W winds 10 to 15 kt. Seas 8 to 13 ft. 

Bahamas N of 22N

.TONIGHT...NW 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 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 5 to 7 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...SE winds less than 10 kt, shifting to S after
midnight. Seas 3 to 5 ft. 
.SAT...SW winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT NIGHT...NW winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 4 to 6 ft. 
.SUN...Variable winds less than 10 kt. Seas 3 to 5 ft. 
.SUN NIGHT...S winds less than 10 kt. Seas 3 to 4 ft. 

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

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

ATLC waters S of 22N W of 65W

.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 4 to 6 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 6 to 8 ft. 
.FRI NIGHT...E winds less than 10 kt. Seas 5 to 7 ft.
.SAT...Variable winds less than 10 kt, becoming S less than
10 kt in the afternoon. Seas 5 to 7 ft. 
.SAT NIGHT...Variable winds less than 10 kt, becoming S less
than 10 kt after midnight. Seas 5 to 7 ft. 
.SUN...SW winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 4 to 6 ft. 
.SUN NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft. 

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

.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 kt. Seas 9 to 11 ft. 
.FRI NIGHT...N winds 10 kt in the evening, becoming variable
winds less than 10 kt. Seas 8 to 11 ft. 
.SAT...Variable winds less than 10 kt. Seas 9 to 11 ft. 
.SAT NIGHT...Variable winds less than 10 kt, becoming S 10 kt
after midnight. Seas 9 to 10 ft. 
.SUN...SW winds 10 kt. Seas 7 to 9 ft. 
.SUN NIGHT...Variable winds less than 10 kt. Seas 5 to 7 ft.