000
FZNT31 KNHC 220930
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
530 AM EDT Fri Sep 22 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...Hurricane Maria is centered at 21.6N 70.6W 959 mb at
5 AM EDT moving NW or 315 degrees at 6 kt. Maximum sustained
winds are 110 kt with gusts to 135 kt. Maria is forecast to
weaken some as it reaches near 22.6N 71.1W early this afternoon,
then to near 24.2N 71.7W late tonight, to near 25.9N 72.2W early
Saturday afternoon, with maximum sustained winds 100 kt gusts to
120 kt and continue to pull further away from Caribbean Sea
region into Sunday evening. Moderate to locally fresh trades
will return across the area by Sunday evening. Strong nocturnal
trades will resume along the NW coast of Venezuela, along the NE
coast of Colombia and across the Gulf of Honduras on Mon
evening, with pockets of locally strong trades expected over the
S central Caribbean Monday night into Tuesday and again on
Tuesday night. 

NW Caribbean W of 85W

.TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft in the morning, subsiding to 2 ft or
less. 
.TONIGHT...NE winds 10 to 15 kt. Seas 2 ft or less. 
.SAT...E winds less than 10 kt. Seas 2 ft or less. 
.SAT NIGHT...E winds 10 kt. Seas 2 ft or less. 
.SUN...E winds less than 10 kt. Seas 2 ft or less. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 2 ft or less, building to
3 ft after midnight. 
.MON...SE winds 10 to 20 kt. Seas 3 to 4 ft. 
.MON NIGHT...E winds 15 to 25 kt. Seas 3 to 5 ft. 
.TUE...E winds 15 to 25 kt. Seas 4 to 6 ft. 

Caribbean N of 15N between 72W and 85W

.TODAY...S of 18N, NW winds less than 10 kt. Elsewhere, NE winds
10 to 15 kt, diminishing to less than 10 kt in the afternoon.
Seas 3 ft in the morning, subsiding to 2 ft or less. 
.TONIGHT...S of 18N, NW winds less than 10 kt, shifting to E
after midnight. Elsewhere, N winds less than 10 kt, shifting to
NE after midnight. Seas 2 ft or less. 
.SAT...SE winds less than 10 kt. Seas 2 ft or less. 
.SAT NIGHT...SE winds less than 10 kt. Seas 2 ft or less. 
.SUN...S of 18N, SE winds 10 to 15 kt,Seas 2 ft or less,
building to 3 to 4 ft in the afternoon. Elsewhere, SE winds less
than 10 kt, increasing to 10 to 15 kt in the afternoon,Seas 2 ft
or less. 
.SUN NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and
2 ft or less elsewhere. 
.MON...SE winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and 2 ft
or less elsewhere. 
.MON NIGHT...E winds 10 to 20 kt. S of 18N, seas 4 to 6 ft.
Elsewhere, seas 2 ft or less, building to 3 ft after midnight. 
.TUE...SE winds 10 to 20 kt. Seas 4 to 6 ft S of 18N, and 3 ft
elsewhere. 

Caribbean from 11N to 15N W of 72W

.TODAY...SW winds less than 10 kt. Seas 3 to 4 ft. 
.TONIGHT...NW winds less than 10 kt, shifting to NE after
midnight. Seas 3 ft in the evening, subsiding to 2 ft or less. 
.SAT...Variable winds less than 10 kt, becoming SE less than
10 kt in the afternoon. Seas 2 ft or less. 
.SAT NIGHT...E winds less than 10 kt. Seas 2 ft or less. 
.SUN...E winds 10 to 15 kt. Seas 2 ft or less, building to 3 to
4 ft in the afternoon. 
.SUN NIGHT...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 4 to 6 ft. 
.TUE...SE winds 15 to 25 kt. Seas 4 to 6 ft. 

SW Caribbean S of 11N

.TODAY...SW winds less than 10 kt. Seas 3 to 5 ft. 
.TONIGHT...NE winds less than 10 kt. Seas 3 ft. 
.SAT...SE winds less than 10 kt. Seas 2 ft or less. 
.SAT NIGHT...Variable winds less than 10 kt, becoming E less
than 10 kt after midnight. Seas 2 ft or less. 
.SUN...SE winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...SE winds less than 10 kt. Seas 2 ft or less. 
.MON...S winds less than 10 kt. Seas 2 ft or less. 
.MON NIGHT...SW winds 10 to 15 kt. Seas 2 ft or less. 
.TUE...SW winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 2 ft or less. 

Caribbean between 64W and 72W

.TODAY...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. 
.TONIGHT...SE winds 10 to 20 kt. Seas 2 ft or less Gulf of
Venezuela, and 4 to 6 ft elsewhere. 
.SAT...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. 
.SAT NIGHT...NE 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...Gulf of Venezuela, E winds 10 to 15 kt, shifting to NE in
the afternoon. Elsewhere, SE winds 10 to 20 kt. Seas 2 ft or
less Gulf of Venezuela, and 4 to 6 ft elsewhere. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela,
and 5 to 7 ft elsewhere. 
.MON...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and
5 to 7 ft elsewhere. 
.MON NIGHT...E winds 10 to 20 kt Gulf of Venezuela, and E 15 to
25 kt elsewhere. Seas 5 to 7 ft. 
.TUE...E winds 15 to 25 kt. Seas 5 to 7 ft. 

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

.TODAY...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT...SE winds 10 to 20 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 6 to 8 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.TUE...E winds 10 to 20 kt. Seas 6 to 8 ft. 

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

.TODAY...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 5 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...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.TUE...E winds 10 to 20 kt. Seas 6 to 8 ft. 

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...Major Hurricane Maria is centered at 21.6N 70.6W
959 
mb at 5 AM EDT moving NW or 315 degrees at 6 kt. Maximum
sustained winds are 110 kt gusts to 135 kt. Maria is forecast to
weaken some as it reaches near 22.6N 71.1W early this afternoon,
then to near 24.2N 71.7W late tonight, to near 25.9N 72.2W early
Saturday afternoon with maximum sustained winds 100 kt gusts to
120 kt. Maria is forecast to continue to weaken as it reaches
near 27.4N 72.3W late Saturday night, with maximum sustained
winds 95 kt gusts to 115 kt, to near 29.5W 72.0W late Sunday
night with maximum sustained winds 85 kt gusts to 105 kt, to
near 31.5N 71.0W late Monday night with maximum sustained winds
75 kt gusts to 90 kt and to well N of the area by late on
Tuesday. In the wake of Maria, a trough will extend from the far
N central waters SW to near the SE Bahamas as central Atlantic
high pressure builds southwestward to the far E and SE forecast
waters. 

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

.TODAY...NE winds 10 to 15 kt. Seas 8 to 11 ft. 
.TONIGHT...NE winds 10 to 20 kt. Seas 9 to 14 ft. 
.SAT...NE winds 10 to 20 kt. Seas 11 to 16 ft. 
.SAT NIGHT...NE winds 10 to 20 kt. Seas 12 to 17 ft. 
.SUN...N winds 10 to 20 kt. Seas 12 to 17 ft. 
.SUN NIGHT...N winds 10 to 20 kt. Seas 11 to 14 ft. 
.MON...N winds 10 to 20 kt. Seas 8 to 13 ft. 
.MON NIGHT...N winds 10 to 20 kt. Seas 8 to 11 ft. 
.TUE...NW winds 10 to 15 kt. Seas 7 to 10 ft. 

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

...HURRICANE WARNING...
...HURRICANE CONDITIONS POSSIBLE SUN THROUGH TUE...

.TODAY...E winds 10 to 15 kt. Seas 11 to 16 ft W of 70W, and
9 to 13 ft elsewhere. 
.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. W of 70W, NE
winds 10 to 20 kt, increasing to 20 to 30 kt after midnight.
Elsewhere, E winds 15 to 25 kt. Seas 14 to 19 ft W of 70W, and
10 to 15 ft elsewhere. 
.SAT...TROPICAL STORM CONDITIONS EXPECTED. W of 70W, NE winds
25 to 35 kt, increasing to 45 to 55 kt in the afternoon,Seas
17 to 22 ft, building to 18 to 28 ft in the afternoon.
Elsewhere, SE winds 20 to 30 kt,Seas 12 to 17 ft. 
.SAT NIGHT...HURRICANE CONDITIONS EXPECTED. NE winds 75 to
90 kt W of 70W, and SE 25 to 35 kt elsewhere. Seas 22 to 32 ft W
of 70W, and 13 to 18 ft elsewhere. 
.SUN...HURRICANE CONDITIONS POSSIBLE. NE winds 75 to 85 kt W of
70W, and SE 30 to 40 kt elsewhere. Seas 22 to 32 ft W of 70W,
and 13 to 18 ft elsewhere. 
.SUN NIGHT...HURRICANE CONDITIONS POSSIBLE. 
.MON...HURRICANE CONDITIONS POSSIBLE. 
.MON NIGHT...HURRICANE CONDITIONS POSSIBLE. 
.TUE...HURRICANE CONDITIONS POSSIBLE. 

Bahamas N of 22N

...TROPICAL STORM WARNING...
...TROPICAL STORM CONDITIONS POSSIBLE SAT...

.TODAY...TROPICAL STORM CONDITIONS. NE winds 35 to 45 kt. Seas
6 to 9 ft. 
.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. NE winds 35 to
45 kt, diminishing to 25 to 35 kt after midnight. Seas 7 to
10 ft. 
.SAT...TROPICAL STORM CONDITIONS POSSIBLE. N winds 20 to 30 kt.
Seas 7 to 10 ft. 
.SAT NIGHT...N winds 20 to 30 kt. Seas 6 to 9 ft. 
.SUN...NW winds 10 to 20 kt. Seas 6 to 9 ft. 
.SUN NIGHT...NW winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON...W winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON NIGHT...NW winds less than 10 kt. Seas 3 to 5 ft. 
.TUE...NW winds 10 to 15 kt. Seas 3 to 4 ft. 

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

...HURRICANE WARNING...
...HURRICANE CONDITIONS POSSIBLE SUN THROUGH MON...

.TODAY...HURRICANE CONDITIONS. W of 70W, NE winds 75 to 95 kt.
Elsewhere, E winds 60 to 70 kt, becoming SE 50 to 60 kt in the
afternoon. Seas 21 to 31 ft W of 70W, and 15 to 20 ft elsewhere.
.TONIGHT...HURRICANE CONDITIONS EXPECTED. NE winds 75 to 95 kt
W of 70W, and SE 40 to 50 kt elsewhere. Seas 23 to 33 ft W of
70W, and 14 to 19 ft elsewhere. 
.SAT...HURRICANE CONDITIONS EXPECTED. W of 70W, N winds 80 to
90 kt, shifting to W 70 to 90 kt in the afternoon. Elsewhere, SE
winds 30 to 40 kt. Seas 23 to 33 ft W of 70W, and 12 to 17 ft
elsewhere. 
.SAT NIGHT...HURRICANE CONDITIONS EXPECTED. SW winds 75 to
90 kt W of 70W, and SE 25 to 35 kt elsewhere. W of 70W, seas
20 to 30 ft, subsiding to 16 to 26 ft after midnight. Elsewhere,
seas 10 to 15 ft. 
.SUN...HURRICANE CONDITIONS POSSIBLE. W of 70W, SW winds 50 to
60 kt, diminishing to 35 to 45 kt in the afternoon. Elsewhere, S
winds 25 to 35 kt. Seas 14 to 19 ft W of 70W, and 9 to 13 ft
elsewhere. 
.SUN NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. 
.MON...TROPICAL STORM CONDITIONS POSSIBLE. 
.MON NIGHT...SW winds 10 to 20 kt. Seas 7 to 10 ft. 
.TUE...SW winds 10 to 20 kt. Seas 6 to 8 ft. 

ATLC waters S of 22N W of 65W

...HURRICANE WARNING...

.TODAY...HURRICANE CONDITIONS. S winds 80 to 95 kt. Seas 11 to
16 ft. 
.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. S winds 35 to
45 kt, becoming SW 20 to 30 kt after midnight. Seas 8 to 13 ft. 
.SAT...SW winds 20 to 30 kt. Seas 7 to 10 ft. 
.SAT NIGHT...S winds 10 to 20 kt. Seas 6 to 9 ft. 
.SUN...S winds 10 to 20 kt. Seas 6 to 8 ft. 
.SUN NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON...S winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft. 

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

.TODAY...SE winds 10 to 20 kt. Seas 6 to 9 ft. 
.TONIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft. 
.SAT...SE winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. 
.SUN...SE winds 10 to 15 kt. Seas 7 to 8 ft. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 7 to 8 ft. 
.MON...SE winds 10 to 15 kt. Seas 7 to 8 ft. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 7 to 8 ft. 
.TUE...SE winds 10 to 15 kt. Seas 6 to 8 ft.