965 
FZNT31 KNHC 202117
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
417 PM EST Wed Nov 20 2019

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...Tropical Storm Sebastien near 21.7N 61.5W 1002 mb at
4 PM EST moving N at 5 kt. Maximum sustained winds 45 kt gusts
55 kt. Sebastien will move to 22.7N 61.0W Thu morning, 24.5N
59.0W Thu afternoon, 27.2N 55.5W Fri morning, become
extratropical and move to 30.0N 51.4W Fri afternoon, and
dissipate by Sat afternoon. Fresh NE winds will prevail across
most of the western Caribbean through Fri morning, with the
strongest winds expected through the Windward and Mona passages
Thu night as high pressure builds north of the region. 

NW Caribbean W of 85W

.TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.THU...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.SAT...NE winds less than 10 kt. Seas 3 to 4 ft. 
.SAT NIGHT...NE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 3 ft. 
.SUN...N winds less than 10 kt. Seas 3 ft. 
.SUN NIGHT...N 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...NE winds 15 to 25 kt. Seas 3 to 5 ft. 
.THU...NE winds 15 to 25 kt. Seas 3 to 5 ft. 
.THU NIGHT...NE winds 15 to 25 kt. Seas 3 to 5 ft. 
.FRI...E winds 10 to 20 kt S of 18N, and NE 15 to 25 kt
elsewhere. Seas 3 to 5 ft. 
.FRI NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT NIGHT...NE winds 10 to 20 kt. S of 18N, seas 3 to 5 ft.
Elsewhere, seas 2 ft or less. 
.SUN...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. 
.SUN NIGHT...S of 18N, NE winds 10 to 15 kt, diminishing to less
than 10 kt after midnight. Elsewhere, N winds less than 10 kt.
Seas 2 ft or less. 
.MON...NE winds 10 to 15 kt S of 18N, and NE less than 10 kt
elsewhere. Seas 2 ft or less. 

Caribbean from 11N to 15N W of 72W

.TONIGHT...NE winds 10 to 20 kt. Seas 3 to 4 ft. 
.THU...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.THU NIGHT...NE winds 10 to 20 kt. Seas 3 to 4 ft. 
.FRI...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.FRI NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT NIGHT...E winds 15 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 3 to 5 ft. 
.SUN...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...NE winds 10 to 20 kt. Seas 3 to 4 ft. 
.MON...NE winds 10 to 15 kt. Seas 3 to 4 ft. 

SW Caribbean S of 11N

.TONIGHT...N winds 10 to 15 kt. Seas 3 ft. 
.THU...N winds 10 to 15 kt. Seas 3 ft. 
.THU NIGHT...N winds 10 to 15 kt. Seas 3 ft. 
.FRI...N winds 10 to 15 kt. Seas 3 ft. 
.FRI NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. 
.SAT...N winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft. 
.SAT NIGHT...N winds 10 to 15 kt. Seas 3 ft. 
.SUN...N winds 10 to 15 kt. Seas 3 ft. 
.SUN NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON...N winds 10 to 15 kt. Seas 3 to 4 ft. 

Caribbean between 64W and 72W

.TONIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.THU...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.THU NIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and NE
15 to 25 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
3 to 5 ft elsewhere. 
.FRI...NE winds 10 to 15 kt Gulf of Venezuela, and NE 15 to
25 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 4 to
6 ft elsewhere. 
.FRI NIGHT...NE winds 10 to 15 kt Gulf of Venezuela, and NE
15 to 25 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
4 to 6 ft elsewhere. 
.SAT...NE winds 10 to 20 kt. Seas 2 ft or less Gulf of
Venezuela, and 4 to 6 ft elsewhere. 
.SAT NIGHT...NE winds 10 to 20 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 5 ft elsewhere. 
.SUN...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela,
and 3 to 5 ft elsewhere. 
.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. 

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

.TONIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.THU...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft. 

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

.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.THU...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...E winds less than 10 kt. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. 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 15 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 4 to 6 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Tropical Storm Sebastien near 21.7N 61.5W 1002 mb at
4 PM EST moving N at 5 kt. Maximum sustained winds 45 kt gusts
55 kt. Sebastien will move to 22.7N 61.0W Thu morning, 24.5N
59.0W Thu afternoon, 27.2N 55.5W Fri morning, become 
extratropical and move to 30.0N 51.4W Fri afternoon, and 
dissipate Sat afternoon. Elsewhere, a cold front extending from 
31N64W to 26N71W to 23N80W will continue moving southeastward 
across the region through Thu. High pressure will build across 
the northern waters Thu through Sat, then shift eastward Sat 
night through Sun as the next cold front moves off the SE U.S. 
coast. 

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

.TONIGHT...N winds 10 to 20 kt. Seas 5 to 6 ft. 
.THU...NE winds 10 to 15 kt. Seas 5 to 6 ft. 
.THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...SE winds 10 to 15 kt, shifting to S in the afternoon.
Seas 4 to 6 ft. 
.FRI NIGHT...S winds less than 10 kt. Seas 4 to 6 ft. 
.SAT...S winds 10 to 15 kt. Seas 4 to 5 ft. 
.SAT NIGHT...SW winds 15 to 25 kt. Seas 5 to 7 ft. 
.SUN...W winds 15 to 25 kt. Seas 6 to 8 ft. 
.SUN NIGHT...NW winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON...NW winds less than 10 kt. Seas 3 to 5 ft. 

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

.TONIGHT...N winds 15 to 25 kt. Seas 7 to 9 ft. 
.THU...N winds 10 to 20 kt W of 70W, and N 20 to 25 kt
elsewhere. Seas 6 to 9 ft W of 70W, and 9 to 11 ft elsewhere. 
.THU NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft W of 70W, and
9 to 11 ft elsewhere. 
.FRI...W of 70W, NE winds 10 to 15 kt, diminishing to less than
10 kt in the afternoon. Elsewhere, N winds 10 to 20 kt. Seas
7 to 10 ft. 
.FRI NIGHT...N winds less than 10 kt. Seas 6 to 8 ft. 
.SAT...W of 70W, S winds less than 10 kt, increasing to 10 to
15 kt in the afternoon. Elsewhere, NW winds 10 to 15 kt. Seas
5 to 7 ft. 
.SAT NIGHT...W of 70W, S winds 15 to 25 kt. Elsewhere, SW winds
less than 10 kt, shifting to S after midnight. Seas 4 to 6 ft. 
.SUN...SW winds 20 to 30 kt W of 70W, and S 15 to 25 kt
elsewhere. Seas 6 to 9 ft W of 70W, and 5 to 6 ft elsewhere. 
.SUN NIGHT...W winds 15 to 25 kt W of 70W, and SW 15 to 25 kt
elsewhere. Seas 6 to 9 ft. 
.MON...W of 70W, NW winds 10 to 15 kt, shifting to N in the
afternoon. Elsewhere, W winds 15 to 25 kt. Seas 6 to 9 ft. 

Bahamas N of 22N

.TONIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.THU...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN...S winds 10 to 15 kt. Seas 3 ft. 
.SUN NIGHT...W winds 10 to 15 kt. Seas 2 ft or less. 
.MON...NW winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 2 ft or less. 

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

.TONIGHT...N winds 15 to 25 kt. Seas 7 to 8 ft W of 70W, and
8 to 11 ft elsewhere. 
.THU...N winds 15 to 25 kt. Seas 7 to 9 ft W of 70W, and 9 to
11 ft elsewhere. 
.THU NIGHT...NE winds 15 to 20 kt. Seas 8 to 11 ft. 
.FRI...NE winds 10 to 20 kt. Seas 7 to 9 ft. 
.FRI NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. 
.SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft. 
.MON...W of 70W, SW winds 10 to 15 kt, shifting to W in the
afternoon. Elsewhere, S winds 10 to 15 kt. Seas 4 to 5 ft. 

ATLC waters S of 22N W of 65W

.TONIGHT...N winds 10 to 20 kt. Seas 6 to 8 ft. 
.THU...N winds 10 to 20 kt. Seas 6 to 8 ft. 
.THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON...E winds less than 10 kt. Seas 3 to 5 ft. 

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

...TROPICAL STORM WARNING...

.TONIGHT...TROPICAL STORM CONDITIONS. S winds 35 to 45 kt,
diminishing to 20 to 30 kt after midnight. Seas 8 to 11 ft. 
.THU...TROPICAL STORM CONDITIONS POSSIBLE. SW winds 15 to
25 kt. Seas 7 to 9 ft. 
.THU NIGHT...N winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT...NE winds 10 to 20 kt. Seas 7 to 8 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 7 to 8 ft. 
.SUN...E winds 10 to 15 kt. Seas 6 to 7 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.MON...SE winds 10 to 15 kt. Seas 5 ft.