287 
FZNT31 KNHC 122120
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
520 PM EDT Wed Sep 12 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 15.4N 56.6W 1003 mb at
5 PM EDT moving W at 17 kt. Maximum sustained winds 50 kt gusts
60 kt. Isaac will move to 15.6N 59.0W Thu morning, 15.8N 61.8W
Thu afternoon, 16.0N 64.8W Fri morning, 16.0N 67.6W Fri
afternoon, and 16.0N 72.5W Sat afternoon. Isaac will change
little in intensity as it moves to near 16.5N 76.5W Sun
afternoon, and continue to near 17.5N 80.5W Mon. 

NW Caribbean W of 85W

.TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft. 
.THU...E winds less than 10 kt. Seas 3 to 4 ft. 
.THU NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft. 
.FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. 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 3 ft in the morning,
subsiding to 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. 

Caribbean N of 15N between 72W and 85W

.TONIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 2 ft or less. 
.THU...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 ft. 
.THU NIGHT...E winds 10 to 15 kt S of 18N, and E 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 ft. 
.FRI NIGHT...NE winds 10 to 20 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. 
.SAT...TROPICAL STORM CONDITIONS POSSIBLE. 
.SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. 
.SUN...TROPICAL STORM CONDITIONS POSSIBLE. 
.SUN NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. 
.MON...SE winds 30 to 40 kt S of 18N, and E 30 to 40 kt
elsewhere. Seas 3 ft. 

Caribbean from 11N to 15N W of 72W

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

SW Caribbean S of 11N

.TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft. 
.THU...NE winds less than 10 kt. Seas 3 to 4 ft. 
.THU NIGHT...NE winds less than 10 kt. Seas 3 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...Variable winds less than 10 kt, becoming W less
than 10 kt after midnight. Seas 3 ft. 
.SUN...SW winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN NIGHT...S winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 3 to 4 ft. 
.MON...SE winds less than 10 kt. Seas 2 ft or less. 

Caribbean between 64W and 72W

...TROPICAL STORM WARNING...

.TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU...TROPICAL STORM CONDITIONS POSSIBLE. Variable winds less
than 10 kt Gulf of Venezuela, and NE 10 to 20 kt elsewhere. Gulf
of Venezuela, seas 3 ft in the morning, subsiding to 2 ft or
less. Elsewhere, seas 3 to 5 ft. 
.THU NIGHT...TROPICAL STORM CONDITIONS EXPECTED. Variable winds
less than 10 kt Gulf of Venezuela, and N 30 to 40 kt elsewhere.
Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. 
.FRI...TROPICAL STORM CONDITIONS EXPECTED. Variable winds less
than 10 kt Gulf of Venezuela, and NW 30 to 40 kt elsewhere. Seas
2 ft or less Gulf of Venezuela, and 5 to 7 ft elsewhere. 
.FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. Variable winds
less than 10 kt Gulf of Venezuela, and SW 30 to 40 kt elsewhere.
Seas 2 ft or less Gulf of Venezuela, and 5 to 7 ft elsewhere. 
.SAT...TROPICAL STORM CONDITIONS POSSIBLE. 
.SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. 
.SUN...Gulf of Venezuela, E winds less than 10 kt, shifting to W
in the afternoon. Elsewhere, SE winds 10 to 20 kt. Seas 2 ft or
less Gulf of Venezuela, and 3 to 5 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
3 to 5 ft elsewhere. 
.MON...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela,
and 4 to 5 ft elsewhere. 

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

...TROPICAL STORM WARNING...

.TONIGHT...TROPICAL STORM CONDITIONS. E winds 40 to 50 kt. Seas
8 to 13 ft. 
.THU...TROPICAL STORM CONDITIONS EXPECTED. E winds 40 to 50 kt.
Seas 9 to 14 ft. 
.THU NIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 35 to
45 kt. Seas 8 to 11 ft. 
.FRI...E winds 10 to 20 kt. Seas 6 to 8 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...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. 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 20 kt. Seas 4 to 6 ft. 

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

...TROPICAL STORM WARNING...

.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 35 to
45 kt. Seas 6 to 9 ft. 
.THU...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 20 to
30 kt. Seas 6 to 8 ft. 
.THU NIGHT...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 20 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 20 kt. Seas 4 to 6 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...E winds 10 to 20 kt. Seas 5 to 7 ft. 

Synopsis for the the SW N ATLC including the Bahamas

.SYNOPSIS...Hurricane Florence near 30.9N 72.5W 949 mb at 5 PM 
EDT moving NW at 14 kt. Maximum sustained winds 105 kt gusts
130 
kt. Florence will move north of the area to 32.1N 74.1W Thu 
morning. Large swell generated by the hurricane will affect the 
waters around the Bahamas and Florida. 

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

.TONIGHT...N winds 10 to 20 kt. Seas 9 to 14 ft. 
.THU...TROPICAL STORM CONDITIONS POSSIBLE. NW winds 10 to
20 kt. Seas 8 to 13 ft. 
.THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. SW winds 15 to
25 kt. Seas 7 to 10 ft. 
.FRI...TROPICAL STORM CONDITIONS POSSIBLE. SW winds 15 to
25 kt. Seas 5 to 7 ft. 
.FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. SW winds 15 to
25 kt. Seas 4 to 6 ft. 
.SAT...TROPICAL STORM CONDITIONS POSSIBLE. 
.SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. 
.SUN...SW winds 15 to 25 kt. Seas 6 to 8 ft. 
.SUN NIGHT...S winds 15 to 25 kt. Seas 6 to 8 ft. 
.MON...S winds 15 to 25 kt. Seas 5 to 7 ft. 

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

...HURRICANE WARNING...

.TONIGHT...HURRICANE CONDITIONS. W of 70W, W winds 80 to
100 kt, becoming SW 55 to 65 kt after midnight,Seas 16 to 26 ft,
subsiding to 14 to 19 ft after midnight. Elsewhere, SE winds
30 to 40 kt, diminishing to 15 to 25 kt after midnight,Seas 8 to
13 ft, subsiding to 7 to 10 ft after midnight. 
.THU...TROPICAL STORM CONDITIONS POSSIBLE. W of 70W, SW winds
30 to 40 kt, becoming S 20 to 30 kt in the afternoon,Seas 8 to
13 ft, subsiding to 7 to 10 ft in the afternoon. Elsewhere, SE
winds 10 to 20 kt,Seas 6 to 9 ft. 
.THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. 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...TROPICAL STORM CONDITIONS POSSIBLE. S winds 10 to 20 kt.
Seas 6 to 8 ft. 
.FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. S winds 10 to
20 kt. Seas 6 to 8 ft. 
.SAT...TROPICAL STORM CONDITIONS POSSIBLE. 
.SAT NIGHT...SW winds 15 to 25 kt W of 70W, and SE 10 to 15 kt
elsewhere. Seas 6 to 8 ft. 
.SUN...SE 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 5 to 7 ft. 

Bahamas N of 22N

.TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft. 
.THU...SE winds less than 10 kt. Seas 3 to 4 ft. 
.THU NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft. 
.FRI...E winds less than 10 kt. Seas 3 to 5 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SAT...E winds less than 10 kt. Seas 3 to 4 ft. 
.SAT NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. 
.SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON...SE winds 10 to 15 kt. Seas 3 to 4 ft. 

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

.TONIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. 
.THU...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.THU NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.FRI...E winds 10 to 15 kt. Seas 6 to 8 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 6 to 7 ft. 
.SAT NIGHT...SE winds 10 to 15 kt W of 70W, and SE less than
10 kt elsewhere. 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...SE winds 10 to 15 kt. Seas 4 to 6 ft. 

ATLC waters S of 22N W of 65W

.TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI...E winds 10 to 20 kt. Seas 6 to 8 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 4 to 6 ft. 
.SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft. 

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

.TONIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. 
.THU...E winds 10 to 20 kt. Seas 8 to 11 ft. 
.THU NIGHT...E winds 10 to 20 kt. Seas 8 to 10 ft. 
.FRI...E winds 10 to 20 kt. Seas 7 to 9 ft. 
.FRI NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 6 to 8 ft. 
.SAT...SE winds less than 10 kt. Seas 5 to 7 ft. 
.SAT NIGHT...SE winds less than 10 kt. Seas 5 to 6 ft. 
.SUN...SE winds 10 to 15 kt. Seas 5 ft. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. 
.MON...SE winds 10 to 15 kt. Seas 5 to 6 ft.