000
FZNT31 KNHC 060807
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
307 AM EST Mon Mar 6 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...The pressure gradient between a high pressure ridge
extending from the NW Bahamas to 21N50W and the Colombian
diurnal low will support fresh to strong trades in the south-
central Caribbean through tonight. Winds will gradually diminish
to below normal basin-wide Tue through Wed night as an Atlantic
cold front sinks southward toward the NE Caribbean islands. The
cold front is forecast to pass through Puerto Rico and the NE
Caribbean 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. Seas 3 to 5 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE...E winds less than 10 kt. Seas 3 ft. 
.TUE NIGHT...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 20 kt. Seas 3 to 5 ft. 

Caribbean N of 15N between 72W and 85W

.TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, E winds
less than 10 kt, increasing to 10 to 15 kt after midnight. Seas
3 to 5 ft. 
.TUE...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. 
.TUE NIGHT...S of 18N, E winds less than 10 kt. Elsewhere, E
winds less than 10 kt, shifting to NE after midnight. Seas 3 to
5 ft. 
.WED...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft. 
.WED NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 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 10 to 15 kt. Seas 3 to 4 ft. 

Caribbean from 11N to 15N W of 72W

.TODAY...E winds 15 to 25 kt within 90 nm of coast of Colombia,
and NE 10 to 20 kt elsewhere. Seas 6 to 8 ft. 
.TONIGHT...E winds 15 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 8 ft. 
.TUE...NE winds 15 to 25 kt within 90 nm of coast of Colombia,
and NE 10 to 20 kt elsewhere. Seas 5 to 7 ft. 
.TUE NIGHT...NE winds 10 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft. 
.WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU...NE winds less than 10 kt. 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. 

SW Caribbean S of 11N

.TODAY...NE winds 10 to 20 kt. Seas 6 to 9 ft. 
.TONIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.TUE...NE winds 10 to 20 kt. Seas 6 to 9 ft. 
.TUE NIGHT...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. 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, diminishing to less than
10 kt after midnight. 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. 

Caribbean between 64W and 72W

.TODAY...NE winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft. 
.TONIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft. 
.TUE...NE winds 15 to 20 kt Gulf of Venezuela, and E 10 to 15 kt
elsewhere. Seas 4 to 6 ft. 
.TUE NIGHT...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, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft. 
.WED NIGHT...NE winds less than 10 kt. Seas 3 ft. 
.THU...NE winds less than 10 kt. 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. 

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

.TODAY...NE winds less than 10 kt. Seas 4 to 6 ft. 
.TONIGHT...E winds less than 10 kt. Seas 4 to 6 ft. 
.TUE...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 4 to 6 ft. 
.TUE NIGHT...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, 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...N 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 5 to 7 ft. 
.TUE...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.TUE NIGHT...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...NE winds less than 10 kt. Seas 3 to 5 ft. 
.FRI...NE winds less than 10 kt. Seas 5 to 7 ft. 
.FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Surface ridging extends from 21N50W to the NW
Bahamas. A cold front that currently extends from 28N55W to
27N65W to 27.5N71W will move SE through today. Fresh to strong
NW winds behind the front will occur today mainly N of 29N and E
of 62W. The ridge will weaken and reform NE of the Bahamas into 
Tue as the front dissipates along 25N. Large NW swell will impact
the NE waters behind the front through Tue. A second cold front 
will enter the area late Tue, and reach from 31N55W to 25N73W by 
early Wed. Gale force winds are expected on both sides of the 
front Tue night into Wed N of 27N and E of 68W. This front will 
send large N swell spreading across all Atlantic waters Tue night
through Thu night. Seas will reach over 20 ft on Wed north of 
30N and east of 62W. 

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

.TODAY...SE winds 10 to 15 kt. Seas 4 to 5 ft. 
.TONIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft. 
.TUE...W winds 10 to 15 kt. Seas 4 to 5 ft. 
.TUE NIGHT...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 15 to 20 kt. Seas 7 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...SE winds less than 10 kt. Seas 5 to 7 ft. 
.FRI NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft. 

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

...GALE WARNING...

.TODAY...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 5 to 6 ft W of 70W, and 6 to 9 ft elsewhere.
.TONIGHT...W of 70W, E winds less than 10 kt, shifting to S
after midnight. Elsewhere, NW winds 10 to 15 kt. Seas 5 to 6 ft
W of 70W, and 6 to 9 ft elsewhere. 
.TUE...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 6 to 9 ft elsewhere.
.TUE NIGHT...NW winds 15 to 25 kt W of 70W, and W 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 10 to 15 ft 
after midnight. 
.WED...NW winds 20 to 30 kt. Seas 10 to 15 ft.
.WED NIGHT...N winds 20 to 30 kt. Seas 11 to 16 ft. 
.THU...N winds 10 to 20 kt. Seas 10 to 15 ft. 
.THU NIGHT...N winds 10 to 20 kt. Seas 8 to 13 ft.
.FRI...N winds 10 to 20 kt. Seas 8 to 13 ft. 
.FRI NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 8 to 13 ft. 

Bahamas N of 22N

.TODAY...E winds less than 10 kt. Seas 2 ft or less. 
.TONIGHT...E winds less than 10 kt. Seas 3 ft. 
.TUE...SW winds less than 10 kt. Seas 2 ft or less. 
.TUE NIGHT...N winds less than 10 kt. Seas 2 ft or less. 
.WED...N winds 10 to 15 kt. Seas 3 to 5 ft. 
.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...NE 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. Seas 3 to 5 ft. 

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

.TODAY...W of 70W, NE winds less than 10 kt, increasing to 10 to
15 kt in the afternoon. Elsewhere, N winds less than 10 kt. Seas
4 to 6 ft. 
.TONIGHT...NE winds less than 10 kt. Seas 5 to 7 ft.
.TUE...NW winds less than 10 kt. Seas 5 to 7 ft.
.TUE NIGHT...W of 70W, NW winds 10 to 20 kt. Elsewhere, NW winds
10 to 15 kt, shifting to W 15 to 25 kt after midnight. Seas 6 to
8 ft. 
.WED...NW winds 10 to 20 kt. Seas 7 to 10 ft. 
.WED NIGHT...N winds 15 to 25 kt. Seas 9 to 14 ft. 
.THU...N winds 15 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. Seas 8 to 11 ft. 
.FRI NIGHT...N winds 10 to 15 kt, shifting to NE after midnight.
Seas 8 to 11 ft. 

ATLC waters S of 22N W of 65W

.TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.TONIGHT...NE winds 10 to 15 kt, shifting to E after midnight.
Seas 3 to 4 ft. 
.TUE...NE winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...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 6 to 9 ft. 
.FRI NIGHT...N winds 10 to 15 kt, shifting to NE after midnight.
Seas 5 to 7 ft. 

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

.TODAY...NE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 4 to 6 ft. 
.TONIGHT...Variable winds less than 10 kt. Seas 5 to 7 ft. 
.TUE...SW winds less than 10 kt. Seas 5 to 7 ft.
.TUE NIGHT...W winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 5 to 7 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 11 ft. 
.FRI NIGHT...NW winds 10 kt. Seas 9 to 10 ft.