000
FZNT31 KNHC 141352
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
952 AM EDT Tue Mar 14 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...A weak pressure pattern is yielding below normal
tradewinds across most of the basin. However winds will increase
slightly through Wed, with fresh winds pulsing to strong winds
at night in the south-central and southeast portions. Moderate
northerly swell will move through the Atlantic waters and NE
Caribbean Passages today then gradually subside through Thu
morning. A cold front is forecast to sink S-SE across the
northwestern basin Wed and Wed night, reach from the Windward
Passage to Belize on Thu, and then from the northern Leeward
Islands to the central Caribbean along 16N Fri. Strong winds
will follow the front, locally higher in Atlantic passages, with
Large N swell spreading through Atlantic passages through early 
Fri through Sat. 

NW Caribbean W of 85W

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.WED...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft. 
.WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI...SE winds 10 to 20 kt. 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 4 to 6 ft. 
.SAT NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. 

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds 10 to 15 kt S of 18N, and SE less than
10 kt elsewhere. Seas 3 ft. 
.TONIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 ft. 
.WED...S of 18N, E winds 10 to 15 kt. Elsewhere, E winds less
than 10 kt in the morning, becoming variable winds less than
10 kt. Seas 3 to 4 ft. 
.WED NIGHT...S of 18N, E winds less than 10 kt. Elsewhere, N
winds less than 10 kt, increasing to 10 to 20 kt after midnight.
Seas 3 to 4 ft. 
.THU...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. 

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...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. 
.TONIGHT...E winds 15 to 20 kt within 90 nm of coast of
Colombia, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. 
.WED...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. 
.WED NIGHT...NE winds 15 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 3 to 5 ft. 
.THU...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 

SW Caribbean S of 11N

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

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of
Venezuela, and 4 to 6 ft elsewhere. 
.TONIGHT...Gulf of Venezuela, NE winds 10 to 20 kt, shifting to
E 20 to 25 kt after midnight. Elsewhere, E winds 10 to 20 kt.
Seas 4 to 6 ft. 
.WED...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela,
and 5 to 7 ft elsewhere. 
.WED NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft. 
.THU...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. 

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

.THIS AFTERNOON...E winds less than 10 kt. Seas 6 to 8 ft. 
.TONIGHT...E winds less than 10 kt. Seas 6 to 8 ft. 
.WED...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.WED NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. 
.THU...SE winds less than 10 kt. Seas 5 to 7 ft. 
.THU NIGHT...S winds less than 10 kt, shifting to SW after
midnight. Seas 4 to 6 ft. 
.FRI...NE winds 10 to 15 kt. Seas 6 to 8 ft. 
.FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. 
.SAT...NE winds 10 to 20 kt. Seas 7 to 10 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. 

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.WED...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.THU...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.FRI...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Large N swell will support seas of 12 ft or greater N
of 28N and E of 68W today, subsiding tonight through Wed. A cold 
front extending from near Bermuda to across the Central Bahamas to
the Straits of Florida will continue moving SE, reaching from 
31N59W to central Cuba Wed morning, from near 29N55W to the 
Windward Passage Thu morning, and from 20N55W through the Leeward 
Islands by Fri morning. Strong to possibly gale-force northerly 
winds immediately behind the front will move through the Bahamas 
Wed night, and then shift across the SE waters and into the 
Caribbean Islands Thu and Thu night. Another set of large N swell
will accompany this front, with seas of 12 ft or greater N of 24N
and E of 72W. Yet another cold front is expected to move off 
Florida this weekend, with fresh to strong southerly winds ahead 
of it Fri night through Sat.

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

.THIS AFTERNOON...NW winds 10 to 15 kt. Seas 6 to 8 ft. 
.TONIGHT...N winds 10 to 20 kt. Seas 7 to 8 ft. 
.WED...N winds 10 to 15 kt. Seas 7 to 9 ft. 
.WED NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. 
.THU...NE winds 10 to 15 kt, shifting to E in the afternoon.
Seas 5 to 7 ft. 
.THU NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 to 6 ft. 
.FRI...S winds 10 to 20 kt. Seas 4 to 5 ft. 
.FRI NIGHT...S winds 20 to 30 kt. Seas 6 to 9 ft. 
.SAT...SW winds 20 to 30 kt. Seas 7 to 10 ft. 
.SAT NIGHT...NW winds 10 to 20 kt. Seas 6 to 9 ft. 

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

.THIS AFTERNOON...W winds 10 to 20 kt. Seas 8 to 12 ft. 
.TONIGHT...NW winds 10 to 20 kt. Seas 8 to 10 ft. 
.WED...NW winds 15 to 25 kt. Seas 8 to 13 ft. 
.WED NIGHT...N winds 10 to 20 kt W of 70W, and NW 15 to 25 kt
elsewhere. Seas 8 to 12 ft W of 70W, and 9 to 14 ft elsewhere. 
.THU...N winds 15 to 25 kt. Seas 8 to 13 ft. 
.THU NIGHT...N winds 10 to 20 kt. Seas 8 to 13 ft.
.FRI...N winds less than 10 kt, shifting to SW in the afternoon.
Seas 7 to 10 ft. 
.FRI NIGHT...S winds 10 to 20 kt. Seas 6 to 9 ft. 
.SAT...S winds 10 to 20 kt. Seas 6 to 9 ft. 
.SAT NIGHT...S winds 10 to 20 kt. Seas 6 to 9 ft. 

Bahamas N of 22N

...GALE WARNING S OF 24N WED NIGHT THROUGH THU...

.THIS AFTERNOON...W winds less than 10 kt. Seas 3 to 5 ft. 
.TONIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED NIGHT...NE winds 15 to 25 kt, except 25 to 35 kt S of 24N 
just behind front. Seas 4 to 7 ft.
.THU...NE winds 15 to 25 kt, except 25 to 35 kt S of 23N just
behind front early. Seas 5 to 8 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. 

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

...GALE WARNING S OF 25N WED NIGHT THROUGH THU...

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas 6 to 8 ft. 
.TONIGHT...W winds 10 to 15 kt. Seas 6 to 9 ft. 
.WED...NW winds 10 to 15 kt. Seas 6 to 8 ft. 
.WED NIGHT...N winds 15 to 25 kt W of 70W, and N 10 to 20 kt
elsewhere. Winds surging to 25 to 35 kt S of 25N just behind
front. Seas 6 to 10 ft.
.THU...N winds 15 to 25 kt, except surging to 25 to 35 kt S of
25N just behind front. Seas 8 to 12 ft.
.THU NIGHT...NE winds 10 to 20 kt. Seas 8 to 12 ft. 
.FRI...E winds 10 to 15 kt. Seas 8 to 11 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 7 to 10 ft. 
.SAT...SE winds 10 to 15 kt. Seas 6 to 8 ft. 
.SAT NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. 

ATLC waters S of 22N W of 65W

...GALE WARNING LATE WED NIGHT THROUGH THU...

.THIS AFTERNOON...S winds less than 10 kt. Seas 4 to 6 ft. 
.TONIGHT...SE winds less than 10 kt. Seas 4 to 6 ft.
.WED...SE winds less than 10 kt. Seas 4 to 6 ft. 
.WED NIGHT...SE winds less than 10 kt, becoming N to NE 25 to 35
kt behind front. Seas 3 to 5 ft, building to 5 to 8 ft behind
front.
.THU...Variable winds 10 kt ahead of front, and N to NE 25 to 35
kt behind front. Seas 6 to 10 ft.
.THU NIGHT...NE winds 20 to 30 kt, diminishing to 10 to 20 kt
after midnight. Seas 7 to 10 ft. 
.FRI...E winds 10 to 20 kt. Seas 7 to 10 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.SAT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 

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

...GALE CONDITIONS POSSIBLE THU AFTERNOON AND NIGHT...

.THIS AFTERNOON...Variable winds less than 10 kt, becoming SE
less than 10 kt in the afternoon. Seas 8 to 10 ft. 
.TONIGHT...Variable winds less than 10 kt. Seas 7 to 9 ft. 
.WED...SE winds 10 kt. Seas 7 to 8 ft. 
.WED NIGHT...SE winds less than 10 kt. Seas 6 to 7 ft. 
.THU...S to SW winds 10 to 15 kt, becoming N to NE 25 to 35 kt
behind front. Seas 6 to 7 ft, building to 7 to 10 ft behind front.
.THU NIGHT...NW winds 25 to 35 kt behind front, and SW 10 to 20
kt ahead of front. Seas 7 to 11 ft.
.FRI...N winds 10 to 20 kt. Seas 8 to 11 ft. 
.FRI NIGHT...NE winds 10 to 20 kt. Seas 9 to 11 ft. 
.SAT...E winds 15 to 20 kt. Seas 9 to 11 ft. 
.SAT NIGHT...E winds 15 to 20 kt. Seas 8 to 11 ft.