000
FZNT31 KNHC 131519
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1119 AM EDT Sun Aug 13 2017

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 ATLC from 07N to 19N
between 55W and 64W

.SYNOPSIS...A tropical wave will move across NW Caribbean this
afternoon, and inland central America tonight. A large central
Atlantic tropical wave will pass 55W late this afternoon, cross
the eastern Caribbean Monday through Tuesday night, the central
Caribbean Wednesday and Wednesday night and the western
Caribbean Thursday into Thursday night. Winds and seas will
build between this wave and another one expected to reach the
eastern part of the tropical N Atlantic Tuesday night into
Wednesday, and move across the eastern Caribbean from about
Wednesday afternoon through Thursday night. 

NW Caribbean W of 85W

.THIS AFTERNOON...SE winds less than 10 kt. Seas 3 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. 
.MON...SE winds 10 to 20 kt. Seas 3 to 4 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.TUE...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.TUE NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. 
.WED...E winds 10 to 20 kt. Seas 3 to 4 ft. 
.WED NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. 
.THU...E winds 10 to 20 kt. Seas 3 to 4 ft. 

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 6 ft S of 18N,
and 2 ft or less elsewhere. 
.TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft S of 18N, and
2 ft or less elsewhere. 
.MON...E winds 10 to 20 kt. Seas 5 to 7 ft S of 18N, and 3 ft
elsewhere. 
.MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft S of 18N, and
3 to 4 ft elsewhere. 
.TUE...E winds 10 to 20 kt. Seas 5 to 7 ft S of 18N, and 3 to
4 ft elsewhere. 
.TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft S of 18N, and
3 to 4 ft elsewhere. 
.WED...E winds 15 to 25 kt S of 18N, and E 10 to 20 kt
elsewhere. Seas 5 to 7 ft S of 18N, and 3 to 4 ft elsewhere. 
.WED NIGHT...E winds 15 to 25 kt S of 18N, and E 10 to 20 kt
elsewhere. Seas 5 to 7 ft S of 18N, and 3 to 5 ft elsewhere. 
.THU...E winds 15 to 25 kt S of 18N, and E 10 to 20 kt
elsewhere. Seas 4 to 6 ft. 

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.TONIGHT...E winds 20 to 30 kt. Seas 7 to 10 ft within 90 nm of
coast of Colombia, and 5 to 7 ft elsewhere. 
.MON...E winds 20 to 30 kt. Seas 6 to 9 ft. 
.MON NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. 
.TUE...E winds 15 to 25 kt. Seas 6 to 9 ft. 
.TUE NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. 
.WED...E winds 15 to 25 kt. Seas 6 to 8 ft. 
.WED NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. 
.THU...E winds 15 to 25 kt. Seas 6 to 8 ft. 

SW Caribbean S of 11N

.THIS AFTERNOON...NW winds less than 10 kt. Seas 3 to 4 ft. 
.TONIGHT...N winds 10 to 15 kt, shifting to NE 15 to 25 kt after
midnight. Seas 3 to 5 ft. 
.MON...NE winds 15 to 25 kt. Seas 5 to 7 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.TUE...E winds 10 to 20 kt, shifting to NW in the afternoon.
Seas 5 to 7 ft. 
.TUE NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. 
.WED...SW winds 10 to 20 kt. Seas 4 to 6 ft. 
.WED NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft.
.THU...NE winds 10 to 20 kt. Seas 4 to 6 ft. 

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.TONIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. 
.MON...E winds 15 to 25 kt. Seas 5 to 7 ft. 
.MON NIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. 
.TUE...E winds 15 to 25 kt. Seas 4 to 6 ft. 
.TUE NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. 
.WED...E winds 15 to 25 kt. Seas 5 to 7 ft. 
.WED NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. 
.THU...NE winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt
elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and 5 to 7 ft
elsewhere. 

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 5 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.TUE...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.WED...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.THU...E winds 10 to 20 kt. Seas 5 to 7 ft. 

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

.THIS AFTERNOON...E winds 10 to 15 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 4 to 6 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 4 to 6 ft. 
.WED...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU...E winds 10 to 15 kt. Seas 3 to 5 ft. 

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...Tropical Depression Eight near 26.5N 70.9W at 11 am 
EDT moving NNW at 11 kt, maximum sustained winds 30 kt gusts to 
40 kt. The depression is forecast to intensify to a tropical
storm near 29.1N 72.2W tonight...reach near 30.7N 72.4W Mon
morning. The tropical storm is forecast then to turn NE and 
continue to intensify gradually and move N of forecast waters as 
it reaches near 32.5N 71.9W Mon night. High pressure will build 
westward along 27N through Thu in the wake of the tropical storm.
The combination of central Atlantic high pressure interacting 
with the northern part of a strong central Atlantic tropical wave
will result in increasing winds and seas S of 22N beginning on 
Wednesday.

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

.THIS AFTERNOON...S winds less than 10 kt. Seas 3 to 4 ft. 
.TONIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON...SW winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE...SW winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. 
.WED...SW winds 10 to 15 kt. Seas 3 ft. 
.WED NIGHT...S winds 10 to 15 kt. Seas 3 ft. 
.THU...SW winds 10 to 15 kt. Seas 3 ft. 

ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W

...TROPICAL STORM WARNING...

.THIS AFTERNOON...E winds 20 to 30 kt W of 70W, and SE 15 to
25 kt elsewhere. Seas 5 to 7 ft. 
.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. N of 28N between
70W and 75W SW to W winds 30 to 35 kt. Seas 8 to 15 ft. 
Elsewhere SW winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...TROPICAL STORM CONDITIONS EXPECTED. N of 29N between 70W
and 75W SW to W winds 35 to 40 kt. Seas 8 to 16 ft. Elsewhere SW
winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. N of 29N, SW 
winds 20 to 25 kt, becoming S to SW 10 to 15 kt late. Seas 7 ft, 
subsiding to 4 ft late. Elsewhere, S winds 10 to 15 kt. Seas 4
ft.
.TUE...S winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. 
.WED...S winds 10 to 15 kt. Seas 3 ft. 
.WED NIGHT...W of 70W, S winds 10 to 15 kt. Elsewhere, S winds
10 to 15 kt, shifting to SE after midnight. Seas 3 ft. 
.THU...S winds 10 to 15 kt. Seas 3 ft. 

Bahamas N of 22N

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

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

.THIS AFTERNOON...SW winds 20 to 30 kt W of 70W, and SE 10 to
20 kt elsewhere. Seas 4 to 6 ft. 
.TONIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. 
.MON...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE...SE 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 20 kt. Seas 3 to 5 ft. 
.THU...E winds 10 to 20 kt. Seas 3 to 5 ft. 

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 4 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 15 to 25 kt. Seas 3 to 5 ft. 
.TUE...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.TUE NIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. 
.WED...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.WED NIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. 
.THU...E winds 15 to 25 kt. Seas 5 to 7 ft. 

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

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