315 
FZNT31 KNHC 131456
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1056 AM EDT Thu Apr 13 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 Atlantic ridge, located just N of the NE
Caribbean, will sustain a moderate trade-wind regime across the
eastern and central Caribbean through the weekend, except for
fresh to strong in the south-central Caribbean, north of
Colombia. Fresh to strong winds will pulse in the Gulf of
Honduras Fri night and Sat night. Moderate northerly swell
related to a frontal boundary currently across the western
Atlantic will continue spreading southward across the Mona
Passage and the southeastern basin through today before
dissipating by the weekend. 

NW Caribbean W of 85W

.THIS AFTERNOON...SE winds less than 10 kt. Seas 3 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 ft. 
.FRI...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN...SE winds 10 to 20 kt. Seas 4 to 6 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 15 kt. Seas 3 to 4 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 to 5 ft S of 18N, and 2 ft or less
elsewhere. 
.TONIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, Variable
winds less than 10 kt, becoming E less than 10 kt after
midnight. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. 
.FRI...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. 
.FRI NIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 4 to 6 ft S of 18N, and 2 ft or less elsewhere. 
.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. 
.MON...E winds less than 10 kt. Seas 3 to 4 ft. 
.MON NIGHT...NE winds less than 10 kt. Seas 3 ft. 

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...E winds 20 to 25 kt within 90 nm of coast of
Colombia, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. 
.TONIGHT...NE winds 20 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 7 to 10 ft within
90 nm of coast of Colombia, and 5 to 7 ft elsewhere. 
.FRI...E winds 20 to 25 kt within 90 nm of coast of Colombia,
and E 10 to 20 kt elsewhere. Seas 6 to 8 ft. 
.FRI NIGHT...NE winds 20 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 7 to 10 ft within
90 nm of coast of Colombia, and 5 to 7 ft elsewhere. 
.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. 
.SUN...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 

SW Caribbean S of 11N

.THIS AFTERNOON...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI...NE winds 10 to 20 kt. Seas 6 to 9 ft. 
.FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT...NE winds 10 to 15 kt. Seas 6 to 8 ft. 
.SAT NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds 15 to 20 kt Gulf of Venezuela, and E
10 to 15 kt elsewhere. Seas 4 to 5 ft. 
.TONIGHT...NE winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 5 ft. 
.FRI...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt
elsewhere. Seas 4 to 6 ft. 
.FRI NIGHT...NE winds 20 to 25 kt Gulf of Venezuela, and E 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 15 kt. Seas 4 to 5 ft. 
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON 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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. 
.FRI...E winds 10 to 15 kt. Seas 4 to 5 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. 
.SAT...E winds 10 to 15 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 15 kt. Seas 4 to 6 ft. 
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 5 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT...E winds 10 to 15 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 15 kt. Seas 5 to 7 ft. 
.MON...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A stationary front extends from 26N55W to 23N64W to 
25N73W then becomes a warm front from that point to NE Florida 
near 29N81W. Fresh to strong SE winds north of 28N and west of
76W will prevail through this evening. The portion of the front
east of 65W will drift SE as a cold front through early Fri
while weakening. The next cold front should move offshore
northern Florida Sun night.

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

.THIS AFTERNOON...SE winds 10 to 20 kt. Seas 6 to 9 ft. 
.TONIGHT...SE winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI...S winds 10 to 15 kt. Seas 5 to 7 ft. 
.FRI NIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft. 
.SAT...W winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft. 
.SAT NIGHT...S winds less than 10 kt. Seas 3 to 4 ft. 
.SUN...S winds 10 to 15 kt. Seas 3 ft. 
.SUN NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON...NW winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. 

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

.THIS AFTERNOON...E winds 10 to 20 kt W of 70W, and NE less than
10 kt elsewhere. Seas 5 to 7 ft. 
.TONIGHT...SE winds 10 to 20 kt W of 70W, and E less than 10 kt
elsewhere. Seas 4 to 6 ft. 
.FRI...SE winds 10 to 15 kt W of 70W, and SE less than 10 kt
elsewhere. Seas 4 to 6 ft. 
.FRI NIGHT...S winds 10 to 15 kt W of 70W, and SE less than
10 kt elsewhere. Seas 3 to 5 ft. 
.SAT...S winds 10 to 15 kt. Seas 3 to 5 ft. 
.SAT NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft. 
.SUN...S winds 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON...S winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. 

Bahamas N of 22N

.THIS AFTERNOON...SE winds less than 10 kt. Seas 3 to 5 ft. 
.TONIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft. 
.FRI NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft. 
.SAT...SE winds less than 10 kt. Seas 3 ft. 
.SAT NIGHT...SE winds less than 10 kt. Seas 3 ft. 
.SUN...SE winds less than 10 kt. Seas 3 ft. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 3 ft. 
.MON...SE winds less than 10 kt. Seas 3 ft. 
.MON NIGHT...E winds less than 10 kt. Seas 3 ft. 

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

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 7 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. 
.SUN...SE winds 10 to 15 kt. Seas 4 to 5 ft. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. 

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...E winds 10 to 15 kt, diminishing to less than
10 kt in the afternoon. Seas 4 to 6 ft. 
.TONIGHT...E 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 15 kt. Seas 4 to 6 ft. 
.SAT...E winds 10 to 15 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 15 kt. Seas 4 to 6 ft. 
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 

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

.THIS AFTERNOON...E winds less than 10 kt. Seas 5 to 6 ft. 
.TONIGHT...NE winds 10 kt. Seas 5 to 6 ft. 
.FRI...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT...E winds 10 to 15 kt. Seas 6 to 7 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.SUN...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.MON...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.