000
FZNT31 KNHC 201513
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1113 AM EDT Sun Aug 20 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 tropical wave low pressure is over the eastern 
Caribbean. Showers and thunderstorms continue to show signs of 
organization in association with this area of low pressure. 
Additional development of this system is expected, and a tropical
depression is likely to form during the next couple of days as 
it moves westward to west northwestward at 10 to 15 kt over the 
eastern and central Caribbean, before turning northward and 
moving into the southwestern Atlantic Ocean by midweek. 
Regardless of development, heavy rainfall is possible over 
portions of the Lesser Antilles during the next couple of days. 
Interests in the eastern and central Caribbean should monitor the
progress of this system. A NOAA Hurricane Reconnaissance mission
is scheduled to investigate the system later today. This system 
has a high chance of development in 48 hours. Regardless of 
development, strong winds and moderate to rough seas can be 
expected through midweek. 

NW Caribbean W of 85W

.THIS AFTERNOON...SE winds less than 10 kt. Seas 2 ft or less. 
.TONIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less. 
.MON...SE winds 10 to 15 kt, shifting to E in the afternoon.
Seas 3 ft. 
.MON NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 ft. 
.TUE...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. 
.WED...NE winds less than 10 kt. Seas 3 to 5 ft. 
.WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. 
.THU...E winds less than 10 kt. Seas 3 to 4 ft in the morning,
subsiding to 2 ft or less. 
.THU NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. 

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds 10 to 15 kt S of 18N, and E less than
10 kt elsewhere. Seas 4 to 6 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.TUE...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.WED...NE winds 10 to 15 kt, shifting to E in the afternoon.
Seas 3 to 5 ft. 
.WED NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. 
.THU...S winds less than 10 kt. Seas 3 ft. 
.THU NIGHT...SE winds less than 10 kt. Seas 2 ft or less. 

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON...Within 90 nm of coast of Colombia, NE winds 10 kt,
shifting to SW less than 10 kt in the afternoon. Elsewhere, NE
winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON NIGHT...NW winds less than 10 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 5 to 7 ft. 
.TUE...NE winds 10 to 15 kt, shifting to N in the afternoon.
Seas 4 to 6 ft. 
.TUE NIGHT...NE winds less than 10 kt, shifting to S after
midnight. Seas 4 to 6 ft. 
.WED...SW winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED NIGHT...SW winds 10 to 15 kt, shifting to S after midnight.
Seas 3 to 5 ft. 
.THU...SW winds less than 10 kt. Seas 3 to 5 ft. 
.THU NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. 

SW Caribbean S of 11N

.THIS AFTERNOON...N winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...N winds less than 10 kt. Seas 4 to 6 ft. 
.MON...NE winds less than 10 kt, shifting to SE in the
afternoon. Seas 3 to 5 ft. 
.MON NIGHT...W winds less than 10 kt. Seas 3 to 5 ft.
.TUE...SW winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 to 5 ft. 
.TUE NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED...SW winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED NIGHT...SW winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 3 to 5 ft. 
.THU...SW winds less than 10 kt. Seas 3 to 4 ft. 
.THU NIGHT...Variable winds less than 10 kt. Seas 3 ft in the
evening, subsiding to 2 ft or less. 

Caribbean between 64W and 72W

.THIS AFTERNOON...NE winds 10 kt Gulf of Venezuela, and E 15 to
25 kt elsewhere. Seas 3 ft Gulf of Venezuela, and 6 to 9 ft
elsewhere. 
.TONIGHT...NE winds 10 to 15 kt Gulf of Venezuela, and E 15 to
25 kt elsewhere. Seas 3 ft Gulf of Venezuela, and 6 to 9 ft
elsewhere. 
.MON...Gulf of Venezuela, Variable winds less than 10 kt,
becoming SW less than 10 kt in the afternoon,Seas 3 ft in the
morning, subsiding to 2 ft or less. Elsewhere, SE winds 10 to
20 kt,Seas 6 to 9 ft. 
.MON NIGHT...SW 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. 
.TUE...SE winds 15 to 25 kt. Seas 6 to 8 ft. 
.TUE NIGHT...SE winds 10 to 20 kt. Seas 6 to 8 ft. 
.WED...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.WED NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.THU...SE winds less than 10 kt. Seas 3 to 5 ft. 
.THU NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. 

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

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.MON...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. 
.WED...E winds less than 10 kt. Seas 3 to 5 ft. 
.WED NIGHT...E winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 to 4 ft. 
.THU...Variable winds less than 10 kt. Seas 3 to 4 ft. 
.THU NIGHT...Variable winds less than 10 kt, becoming E less
than 10 kt after midnight. Seas 3 to 4 ft. 

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

.THIS AFTERNOON...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 4 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, diminishing to less than 10 kt
after midnight. Seas 3 to 5 ft. 
.THU...E winds less than 10 kt. Seas 3 to 5 ft. 
.THU NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Tropical Depression Six is near 16.8N 53.7W at 11 AM
EDT, and is moving west at 10 kt. Maximum sustained winds are 30
kt with gusts to 40 kt, and the minimum central pressure is 1008
mb. Six will move to 16.9N 55.1W this evening, become a remnant 
low and move to 17.2N 57.0W Mon morning, and dissipate Mon 
evening. Fresh to strong tradewinds will pulse off Hispaniola and
the Windward Passage each evening through Tue night. Fresh 
tradewinds south of 25N will persist through Tue. 

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

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 4 to 5 ft. 
.TONIGHT...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. 
.TUE...NE winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 to 5 ft. 
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.WED...NE winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 to 4 ft. 
.WED NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.THU...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.TUE...NE winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 to 5 ft. 
.TUE NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. 
.WED...N winds less than 10 kt. Seas 3 to 5 ft. 
.WED NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft.
.THU...N winds 10 to 20 kt. Seas 5 to 7 ft. 
.THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 

Bahamas N of 22N

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.TUE...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. 
.WED...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.THU...NE winds 10 to 15 kt. Seas 2 ft or less. 
.THU NIGHT...NE winds 10 to 15 kt. Seas 3 ft. 

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.TONIGHT...E winds 15 to 20 kt W of 70W, and E 10 to 15 kt
elsewhere. 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. Seas 4 to 6 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.WED...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.WED NIGHT...SE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 6 to 9 ft. 
.THU...SE winds less than 10 kt. Seas 6 to 9 ft. 
.THU NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. 

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON...E winds 10 to 20 kt. Seas 5 to 7 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...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.WED...SE winds 10 to 20 kt. Seas 6 to 9 ft. 
.WED NIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft. 
.THU...S winds 10 to 15 kt. Seas 5 to 7 ft. 
.THU NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. 

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.MON...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.MON NIGHT...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 less than 10 kt. Seas 4 to 6 ft. 
.WED...E winds less than 10 kt. Seas 4 to 6 ft. 
.WED NIGHT...E winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 4 to 5 ft. 
.THU...E winds less than 10 kt. Seas 4 to 5 ft. 
.THU NIGHT...Variable winds less than 10 kt, becoming E less
than 10 kt after midnight. Seas 4 to 5 ft.