269 
FZNT31 KNHC 132047
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
447 PM EDT Thu Sep 13 2018

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...Tropical Storm Isaac near 14.9N 63.2W 1006 mb at
5 PM EDT moving W at 14 kt. Maximum sustained winds 35 kt gusts
45 kt. Isaac will move to 14.9N 65.4W Fri morning, weaken to a
tropical depression near 14.9N 68.2W Fri afternoon, 14.9N 70.8W
Sat morning, 15.0N 73.0W Sat afternoon, and near 16.2N 77.4W Sun
afternoon. Isaac will dissipate Mon afternoon. The highest winds
and seas are expected mainly north of the center. Otherwise,
gentle to moderate trades are forecast west of Isaac while fresh
trades are forecast to the east of Isaac. 

NW Caribbean W of 85W

.TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft. 
.FRI...E winds less than 10 kt. Seas 3 to 4 ft. 
.FRI NIGHT...E winds less than 10 kt. Seas 2 ft or less. 
.SAT...NE winds less than 10 kt. Seas 2 ft or less. 
.SAT NIGHT...NE winds less than 10 kt. Seas 2 ft or less. 
.SUN...NE winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...NE winds less than 10 kt. Seas 2 ft or less. 
.MON...NE winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less. 
.TUE...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 2 ft or less. 

Caribbean N of 15N between 72W and 85W

.TONIGHT...E winds 10 to 15 kt S of 18N, and NE less than 10 kt
elsewhere. Seas 3 ft. 
.FRI...E winds 10 to 15 kt S of 18N, and NE less than 10 kt
elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. 
.FRI NIGHT...S of 18N, NE winds 10 to 15 kt, increasing to 15 to
25 kt after midnight. Elsewhere, NE winds less than 10 kt. Seas
3 to 5 ft S of 18N, and 2 ft or less elsewhere. 
.SAT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 20 to 30 kt
S of 18N, and NE less than 10 kt elsewhere. Seas 4 to 6 ft S of
18N, and 3 ft elsewhere. 
.SAT NIGHT...NE winds 20 to 30 kt S of 18N, and NE 10 to 15 kt
elsewhere. Seas 4 to 6 ft S of 18N, and 3 ft elsewhere. 
.SUN...NE winds 20 to 30 kt S of 18N, and NE 10 to 15 kt
elsewhere. Seas 5 to 7 ft S of 18N, and 3 ft elsewhere. 
.SUN NIGHT...S of 18N, NE winds 20 to 30 kt, becoming E 10 to
20 kt after midnight. Elsewhere, NE winds 10 to 15 kt. Seas 4 to
6 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...SE winds 10 to 20 kt. Seas 3 to 5 ft. 

Caribbean from 11N to 15N W of 72W

.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI NIGHT...Within 90 nm of coast of Colombia, N winds less
than 10 kt. Elsewhere, E winds 10 to 15 kt, shifting to NE 15 to
25 kt after midnight. Seas 3 to 4 ft. 
.SAT...NW winds 10 to 15 kt within 90 nm of coast of Colombia,
and N 20 to 30 kt elsewhere. Seas 4 to 6 ft. 
.SAT NIGHT...Within 90 nm of coast of Colombia, W winds 10 to
15 kt in the evening, becoming variable winds less than 10 kt.
Elsewhere, NE winds 20 to 30 kt. Seas 4 to 6 ft. 
.SUN...SW winds 10 to 15 kt within 90 nm of coast of Colombia,
and S 15 to 25 kt elsewhere. Seas 4 to 6 ft. 
.SUN NIGHT...Within 90 nm of coast of Colombia, W winds 10 to
15 kt. Elsewhere, S winds 15 to 25 kt, diminishing to 10 to
15 kt after midnight. Seas 3 to 5 ft. 
.MON...SE winds 10 to 15 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. 

SW Caribbean S of 11N

.TONIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.FRI...E winds less than 10 kt, shifting to S in the afternoon.
Seas 3 ft. 
.FRI NIGHT...Variable winds less than 10 kt. Seas 3 ft. 
.SAT...Variable winds less than 10 kt. Seas 3 ft. 
.SAT NIGHT...NW winds less than 10 kt, shifting to W after
midnight. Seas 3 to 4 ft. 
.SUN...SW winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...S winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 3 to 4 ft. 
.MON...S winds less than 10 kt. Seas 3 to 4 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 ft. 

Caribbean between 64W and 72W

...TROPICAL STORM WARNING...

.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. Variable winds
less than 10 kt Gulf of Venezuela, and N 25 to 35 kt elsewhere.
Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. 
.FRI...TROPICAL STORM CONDITIONS POSSIBLE. Variable winds less
than 10 kt Gulf of Venezuela, and NW 20 to 30 kt elsewhere. Seas
2 ft or less Gulf of Venezuela, and 6 to 8 ft elsewhere. 
.FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. Variable winds
less than 10 kt Gulf of Venezuela, and S 20 to 30 kt elsewhere.
Seas 2 ft or less Gulf of Venezuela, and 6 to 9 ft elsewhere. 
.SAT...Variable winds less than 10 kt Gulf of Venezuela, and SE
20 to 30 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
6 to 9 ft elsewhere. 
.SAT NIGHT...Variable winds less than 10 kt Gulf of Venezuela,
and SE 15 to 25 kt elsewhere. Seas 2 ft or less Gulf of
Venezuela, and 5 to 7 ft elsewhere. 
.SUN...Variable winds less than 10 kt Gulf of Venezuela, and SE
10 to 20 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
4 to 6 ft elsewhere. 
.SUN NIGHT...NE winds less than 10 kt Gulf of Venezuela, and E
10 to 20 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
4 to 6 ft elsewhere. 
.MON...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela,
and 4 to 6 ft elsewhere. 
.MON NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of
Venezuela, and 4 to 6 ft elsewhere. 
.TUE...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela,
and 5 to 7 ft elsewhere. 

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

...TROPICAL STORM WARNING...

.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 25 to
35 kt. Seas 9 to 14 ft, subsiding to 8 to 11 ft after midnight. 
.FRI...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT...SE winds less than 10 kt. Seas 4 to 6 ft. 
.SAT NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN...SE 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 20 kt. Seas 4 to 6 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. 

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

.TONIGHT...SE winds 20 to 30 kt. Seas 5 to 7 ft. 
.FRI...E winds 10 to 20 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 4 to 6 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN NIGHT...E winds 10 to 15 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 5 to 7 ft. 
.TUE...E winds 10 to 20 kt. Seas 5 to 7 ft. 

Synopsis for the the SW N ATLC including the Bahamas

.SYNOPSIS...Hurricane Florence is just north of the area near
33.7N 76.2W 955 mb at 5 PM EDT moving W-NW at 4 kt. Maximum 
sustained winds 85 kt gusts 105 kt. Florence will move to 34.1N 
77.2W Fri morning, 34.2N 78.2W Fri afternoon, weaken to a
tropical storm near 33.9N 79.0W Sat morning, near 33.8N 79.9W
Sat afternoon, near 34.8N 82.3W Sun afternoon, near 37.9N 82.6W 
Mon afternoon and near 42.7N 76.3W on Tue afternoon. Large swell 
generated by Florence will continue to affect the Atlc waters N 
of the Bahamas through late Fri. Large swells are also forecast 
east of 70W through Fri night. 

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

.TONIGHT...SW winds 15 to 25 kt. Seas 7 to 10 ft. 
.FRI...SW winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT...W winds 15 to 25 kt. Seas 5 to 7 ft. 
.SAT NIGHT...S winds 15 to 25 kt. Seas 6 to 8 ft. 
.SUN...S winds 10 to 20 kt. Seas 6 to 8 ft. 
.SUN NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. 
.TUE...E winds 10 to 15 kt. Seas 4 to 5 ft. 

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

.TONIGHT...S winds 15 to 25 kt W of 70W, and SE 10 to 15 kt
elsewhere. Seas 7 to 10 ft W of 70W, and 6 to 7 ft elsewhere. 
.FRI...SE winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI NIGHT...S winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT...S winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft. 
.SUN...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN NIGHT...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...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.TUE...SE winds 10 to 15 kt. Seas 5 to 6 ft. 

Bahamas N of 22N

.TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft. 
.FRI...E winds less than 10 kt. Seas 3 to 5 ft. 
.FRI NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.SAT...E winds less than 10 kt. Seas 3 to 4 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 ft. 
.TUE...SE winds 10 to 15 kt. Seas 3 ft. 

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

.TONIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.FRI...E winds 10 to 15 kt. Seas 6 to 9 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft. 
.SAT...E winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 7 to 8 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft. 
.SUN...W of 70W, E winds 10 to 15 kt. Elsewhere, E winds 10 to
15 kt, shifting to SE in the afternoon. Seas 5 to 6 ft. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft. 
.MON...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.TUE...S winds 10 to 20 kt. Seas 4 to 6 ft. 

ATLC waters S of 22N W of 65W

.TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.FRI...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.TUE...SE winds 10 to 20 kt. Seas 3 to 5 ft. 

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

.TONIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. 
.FRI...E winds 10 to 20 kt. Seas 7 to 10 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft. 
.SAT...SE winds less than 10 kt. Seas 6 to 7 ft. 
.SAT NIGHT...S winds less than 10 kt. Seas 6 to 7 ft. 
.SUN...SE winds 10 to 15 kt. Seas 5 to 6 ft. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft. 
.MON...E winds 10 to 15 kt. Seas 4 to 5 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.TUE...E winds 10 to 20 kt. Seas 5 to 6 ft.