073 
FZNT31 KNHC 182041
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
341 PM EST Sat Nov 18 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 ridge across the
Yucatan Peninsula and northern Central America and a low
pressure over the NW Caribbean supports and area of fresh to
strong W to NW winds particularly from 16N to 20N and W of 83W.
These winds are expected to persist through tonight. A trailing
surface trough will remain over the central Caribbean into Tue.
A weak low could develop along the trough axis. Fresh to locally
strong northerly winds are expected W of the trough and mainly
offshore Nicaragua through Sun. 

NW Caribbean W of 85W

.TONIGHT...NW winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN...NW winds 10 to 15 kt, shifting to N in the afternoon.
Seas 3 to 5 ft. 
.SUN NIGHT...E winds less than 10 kt. Seas 3 ft. 
.MON...E winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 ft. 
.TUE...E winds less than 10 kt. Seas 3 ft. 
.TUE NIGHT...NE winds less than 10 kt. Seas 3 ft. 
.WED...Variable winds less than 10 kt, becoming N less than
10 kt in the afternoon. Seas 3 ft. 
.WED NIGHT...N winds less than 10 kt. Seas 2 ft or less. 
.THU...N winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 

Caribbean N of 15N between 72W and 85W

.TONIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN...S of 18N, NW winds 10 to 15 kt. Elsewhere, N winds 10 to
15 kt, diminishing to less than 10 kt in the afternoon. Seas
3 to 5 ft. 
.SUN NIGHT...S of 18N, N winds 10 to 15 kt, shifting to NE after
midnight. Elsewhere, NE winds less than 10 kt. Seas 4 to 6 ft S
of 18N, and 3 to 4 ft elsewhere. 
.MON...S of 18N, NE winds less than 10 kt, increasing to 10 to
15 kt in the afternoon,Seas 3 to 5 ft. Elsewhere, E winds less
than 10 kt,Seas 3 ft in the morning, subsiding to 2 ft or less. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 

Caribbean from 11N to 15N W of 72W

.TONIGHT...SW winds 15 to 25 kt within 90 nm of coast of
Colombia, and NW 10 to 15 kt elsewhere. Seas 5 to 7 ft. 
.SUN...SW winds 15 to 25 kt within 90 nm of coast of Colombia,
and W 10 to 20 kt elsewhere. Seas 5 to 7 ft. 
.SUN NIGHT...W winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON...W winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.MON NIGHT...NW winds less than 10 kt. Seas 3 to 4 ft. 
.TUE...SE winds less than 10 kt. Seas 3 ft. 
.TUE NIGHT...E winds less than 10 kt. Seas 3 ft. 
.WED...E winds less than 10 kt. Seas 3 ft. 
.WED NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. 
.THU...E 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 5 ft. 

SW Caribbean S of 11N

.TONIGHT...W winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...W winds less than 10 kt. Seas 4 to 6 ft. 
.SUN NIGHT...SW winds less than 10 kt. Seas 3 to 4 ft. 
.MON...W winds less than 10 kt. Seas 3 ft. 
.MON NIGHT...W winds less than 10 kt. Seas 3 ft. 
.TUE...SW winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 2 ft or less. 
.TUE NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. 
.WED...Variable winds less than 10 kt. Seas 2 ft or less. 
.WED NIGHT...N winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 2 ft or less. 
.THU...Variable winds less than 10 kt. Seas 2 ft or less. 
.THU NIGHT...NE winds less than 10 kt. Seas 2 ft or less,
building to 3 ft after midnight. 

Caribbean between 64W and 72W

.TONIGHT...N winds less than 10 kt Gulf of Venezuela, and SE
10 to 20 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
5 to 7 ft elsewhere. 
.SUN...N winds less than 10 kt Gulf of Venezuela, and SE 10 to
15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 5 to
7 ft elsewhere. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 4 to 6 ft elsewhere. 
.MON...SE winds less than 10 kt. Seas 2 ft or less Gulf of
Venezuela, and 4 to 6 ft elsewhere. 
.MON NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.TUE...E winds less than 10 kt. Seas 3 to 4 ft. 
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft. 
.WED NIGHT...E winds 10 to 15 kt. 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. 

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

.TONIGHT...SE winds 10 to 15 kt. Seas 6 to 9 ft. 
.SUN...SE winds 10 to 15 kt. Seas 6 to 9 ft. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.MON NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. 
.TUE...Variable winds less than 10 kt. Seas 3 to 5 ft. 
.TUE NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. 
.WED...E winds less than 10 kt. Seas 3 to 5 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 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. 

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

.TONIGHT...E winds 10 to 15 kt. Seas 6 to 9 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. 
.MON...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TUE...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.TUE NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft. 
.WED...E winds less than 10 kt. Seas 3 to 5 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.THU...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Low pressure of 1007 mb is located near 30N76W with
a frontal trough extending to western Cuba. The low will move N 
of area soon with fresh NW to N winds behind the frontal trough, 
and fresh to strong southerly winds ahead of the trough. The 
remnants of Potential Tropical Cyclone Twenty-Two continues to 
race NE and will merge with the frontal trough on Sun. 

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

.TONIGHT...NE winds 10 to 20 kt. Seas 7 to 8 ft. 
.SUN...NE winds 10 to 15 kt. Seas 6 to 7 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft. 
.MON...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.MON NIGHT...E winds 15 to 20 kt. Seas 5 to 7 ft. 
.TUE...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.TUE NIGHT...SE winds 10 to 20 kt. Seas 5 to 6 ft. 
.WED...S winds 10 to 20 kt. Seas 5 to 7 ft. 
.WED NIGHT...W winds 15 to 25 kt. Seas 6 to 8 ft. 
.THU...NW winds 10 to 15 kt. Seas 5 to 7 ft. 
.THU NIGHT...N winds 10 kt in the evening, becoming variable
winds less than 10 kt. Seas 3 to 5 ft. 

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

.TONIGHT...NW winds 10 to 20 kt. Seas 6 to 8 ft W of 70W, and
8 to 12 ft elsewhere. 
.SUN...N winds 10 to 20 kt. Seas 7 to 10 ft. 
.SUN NIGHT...NE winds 10 to 20 kt. Seas 7 to 9 ft. 
.MON...NE winds 10 to 20 kt. Seas 7 to 10 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. 
.TUE...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.WED...SE winds 10 to 15 kt. Seas 6 to 8 ft. 
.WED NIGHT...S winds 10 to 20 kt. Seas 6 to 8 ft.
.THU...W winds 10 to 20 kt. Seas 6 to 9 ft. 
.THU NIGHT...NW winds 10 to 15 kt. Seas 6 to 9 ft. 

Bahamas N of 22N

.TONIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN...NW winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.TUE...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.TUE NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.WED...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.WED NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...SW winds less than 10 kt, shifting to NW in the
afternoon. Seas 3 to 4 ft. 
.THU NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. 

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

.TONIGHT...W winds 10 to 15 kt W of 70W, and SW 15 to 25 kt
elsewhere. Seas 6 to 8 ft W of 70W, and 8 to 12 ft elsewhere. 
.SUN...W winds 10 to 20 kt. Seas 5 to 7 ft W of 70W, and 7 to
10 ft elsewhere. 
.SUN NIGHT...NW winds 10 to 15 kt. Seas 6 to 9 ft. 
.MON...N winds 10 to 20 kt. Seas 6 to 8 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. 
.TUE...NE winds 15 to 20 kt. Seas 6 to 9 ft. 
.TUE NIGHT...E winds 10 to 20 kt. Seas 7 to 9 ft. 
.WED...E winds 10 to 15 kt. Seas 6 to 9 ft. 
.WED NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. 
.THU...S winds 10 to 15 kt. Seas 5 to 7 ft. 
.THU NIGHT...S winds less than 10 kt. Seas 5 to 6 ft. 

ATLC waters S of 22N W of 65W

.TONIGHT...SW winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...SW winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN NIGHT...W winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON...NW winds 10 to 15 kt, shifting to N in the afternoon.
Seas 3 to 5 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.WED...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.THU...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.THU NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. 

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

.TONIGHT...SE winds 10 to 15 kt. Seas 8 to 9 ft. 
.SUN...S winds 10 to 15 kt. Seas 7 to 8 ft. 
.SUN NIGHT...S winds 10 to 15 kt. Seas 6 to 7 ft. 
.MON...S winds 10 to 15 kt. Seas 5 to 6 ft. 
.MON NIGHT...SW winds less than 10 kt. Seas 5 to 6 ft. 
.TUE...W winds less than 10 kt, shifting to NW in the afternoon.
Seas 4 to 5 ft. 
.TUE NIGHT...N winds 10 to 20 kt. Seas 6 to 8 ft. 
.WED...NE winds 10 to 20 kt. Seas 6 to 9 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 7 to 9 ft. 
.THU...E winds 10 to 15 kt. Seas 7 to 9 ft. 
.THU NIGHT...E winds 10 kt. Seas 7 to 8 ft.