377 
FZNT31 KNHC 140911
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
511 AM EDT Sat Aug 14 2021

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...Recently upgraded Tropical Storm Grace near 15.8N
55.6W 1007 mb at 5 AM EDT is moving W at 19 kt. Maximum
sustained winds 35 kt gusts 45 kt. Grace will move to near 16.2N
58.5W this afternoon, to near 16.9N 61.8W late tonight, to near
17.7N 64.8W Sun afternoon with maximum sustained winds 45 kt
gusts 55 kt, to near 18.3N 67.3W late Sun night, over the
eastern Dominican Republic near 18.9N 69.4W Mon afternoon and
remain over land near 19.8N 71.5W late Mon night with maximum
sustained winds 40 kt gusts 50 kt. Grace will change little in
intensity as it moves to near 21.9N 75.6W late Tue night and to
near 24.5N 79.7W late Wed night. 

NW Caribbean W of 85W

.TODAY...SE winds less than 10 kt. Seas 2 ft or less. 
.TONIGHT...SE winds less than 10 kt. Seas 2 ft or less. 
.SUN...SE winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less, building
to 3 ft after midnight. 
.MON...SE winds 10 to 15 kt. Seas 3 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 ft. 
.TUE...E winds less than 10 kt. Seas 3 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 ft. 
.WED...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft. 

Caribbean N of 15N between 72W and 85W

.TODAY...SE winds 10 to 20 kt. Seas 3 to 4 ft. 
.TONIGHT...E winds 10 to 15 kt S of 18N, and SE less than 10 kt
elsewhere. Seas 3 to 4 ft. 
.SUN...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 to 4 ft. 
.SUN NIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 ft. 
.MON...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 ft. 
.MON NIGHT...E winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less. 
.TUE...E winds 10 to 20 kt. Seas 2 ft or less. 
.TUE NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.WED...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

.TODAY...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN...Within 90 nm of coast of Colombia, E winds 10 kt in the
morning, becoming variable winds less than 10 kt. Elsewhere, E
winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN NIGHT...NE winds less than 10 kt. Seas 3 ft.
.MON...E winds less than 10 kt. Seas 3 ft. 
.MON NIGHT...NE winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less. 
.TUE...E winds 10 to 15 kt. Seas 2 ft or less. 
.TUE NIGHT...E winds 15 to 25 kt. Seas 2 ft or less, building to
3 ft after midnight. 
.WED...E winds 15 to 25 kt. Seas 3 to 4 ft. 

SW Caribbean S of 11N

.TODAY...NW winds 10 to 15 kt, shifting to S in the afternoon.
Seas 3 to 5 ft. 
.TONIGHT...W winds less than 10 kt. Seas 3 to 5 ft. 
.SUN...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...Variable winds less than 10 kt. Seas 3 ft. 
.MON...Variable winds less than 10 kt. Seas 3 ft. 
.MON NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. 
.TUE...Variable winds less than 10 kt. Seas 2 ft or less. 
.TUE NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. 
.WED...N winds less than 10 kt, shifting to S in the afternoon.
Seas 2 ft or less. 

Caribbean between 64W and 72W

.TODAY...Gulf of Venezuela, NE winds 10 to 15 kt, diminishing to
less than 10 kt in the afternoon. Elsewhere, E winds 10 to
20 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft
elsewhere. 
.TONIGHT...NE winds less than 10 kt Gulf of Venezuela, and E
10 to 15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
3 to 5 ft elsewhere. 
.SUN...Gulf of Venezuela, Variable winds less than 10 kt.
Elsewhere, E winds 10 to 15 kt, increasing to 15 to 25 kt in the
afternoon. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft
elsewhere. 
.SUN NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. Gulf of
Venezuela, NE winds less than 10 kt. Elsewhere, E winds 10 to
15 kt, increasing to 15 to 25 kt after midnight. Seas 2 ft or
less Gulf of Venezuela, and 3 to 4 ft elsewhere. 
.MON...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
3 to 4 ft elsewhere. 
.MON NIGHT...NE winds less than 10 kt Gulf of Venezuela, and E
10 to 20 kt elsewhere. Gulf of Venezuela, seas 2 ft or less,
building to 3 ft after midnight. Elsewhere, seas 4 to 6 ft. 
.TUE...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 5 to
7 ft elsewhere. 
.TUE NIGHT...NE winds 10 to 15 kt Gulf of Venezuela, and E 15 to
25 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 5 to
7 ft elsewhere. 
.WED...NE winds 10 to 15 kt Gulf of Venezuela, and E 15 to 25 kt
elsewhere. Gulf of Venezuela, seas 2 ft or less, building to
3 ft in the afternoon. Elsewhere, seas 5 to 7 ft. 

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

...TROPICAL STORM WARNING...

.TODAY...TROPICAL STORM CONDITIONS POSSIBLE. E winds 25 to
35 kt. Seas 5 to 7 ft. 
.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 25 to
35 kt. Seas 6 to 8 ft. 
.SUN...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 30 to
40 kt. Seas 6 to 8 ft. 
.SUN NIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. 
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...E winds 10 to 15 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 5 to 6 ft. 
.WED...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

.TODAY...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON...E winds 10 to 15 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 5 to 7 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Tropical Depression Fred just inland north-central
Cuba is forecast to move into the eastern Gulf of Mexico tonight
as a possible tropical storm. Numerous showers and scattered 
thunderstorms over the far southwest part will gradually shift 
westward through tonight. Recently upgraded Tropical Storm Grace
near 15.8N 55.6W 1007 mb at 5 AM EDT is moving W at 19 kt. 
Maximum sustained winds 35 kt gusts 45 kt. Grace will move to 
near 16.2N 58.5W this afternoon, to near 16.9N 61.8W late 
tonight, to near 17.7N 64.8W Sun afternoon with maximum sustained
winds 45 kt gusts 55 kt, to near 18.3N 67.3W late Sun night, 
over the eastern Dominican Republic near 18.9N 69.4W Mon 
afternoon and remain over land near 19.8N 71.5W late Mon night 
with maximum sustained winds 40 kt gusts 50 kt. Grace will change
little in intensity as it moves to near 21.9N 75.6W late Tue 
night and to near 24.5N 79.7W late Wed night. 

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

.TODAY...SE winds 10 to 20 kt. Seas 3 to 4 ft. 
.TONIGHT...SE winds 10 to 20 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 4 to 5 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. 

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

.TODAY...SE winds 10 to 15 kt W of 70W, and E less than 10 kt
elsewhere. Seas 3 to 4 ft. 
.TONIGHT...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 W of 70W, and E less than 10 kt
elsewhere. Seas 3 to 5 ft. 
.MON...E winds 10 to 15 kt W of 70W, and E less than 10 kt
elsewhere. Seas 3 to 5 ft. 
.MON NIGHT...E winds 10 to 15 kt W of 70W, and SE less than
10 kt elsewhere. Seas 3 to 5 ft. 
.TUE...E winds 10 to 15 kt W of 70W, and S less than 10 kt
elsewhere. Seas 3 to 4 ft. 
.TUE NIGHT...W of 70W, E winds less than 10 kt, increasing to
10 to 15 kt after midnight. Elsewhere, SE winds less than 10 kt.
Seas 3 to 5 ft. 
.WED...SE winds 10 to 15 kt. Seas 4 to 6 ft. 

Bahamas N of 22N

.TODAY...E winds 20 to 25 kt, diminishing to 10 to 20 kt in the 
afternoon. Seas 5 to 7 ft, subsiding to 3 to 4 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN...E winds 10 to 20 kt. Seas 3 to 4 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft. 
.MON...E winds 10 to 15 kt. Seas 3 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 ft. 
.TUE...E winds 10 to 15 kt, increasing to 20 to 30 kt in the
afternoon. Seas 3 to 5 ft, building to 7 to 10 ft. 
.TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. 
.WED...TROPICAL STORM CONDITIONS POSSIBLE. 

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

.TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...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 15 kt. Seas 4 to 5 ft. 
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.TUE...SE winds 10 to 20 kt. Seas 6 to 8 ft. 
.TUE NIGHT...SE winds 10 to 20 kt. Seas 7 to 10 ft W of 70W, and
4 to 6 ft elsewhere. 
.WED...SE winds 10 to 20 kt. Seas 6 to 9 ft W of 70W, and 4 to
6 ft elsewhere. 

ATLC waters S of 22N W of 65W

.TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...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...TROPICAL STORM CONDITIONS POSSIBLE. E winds 10 to
15 kt, increasing to 20 to 30 kt after midnight. Seas 5 to 7 ft.
.MON...TROPICAL STORM CONDITIONS POSSIBLE. E winds 35 to 45 kt.
Seas 4 to 6 ft. 
.MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. 
.TUE...TROPICAL STORM CONDITIONS POSSIBLE. 
.TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. 
.WED...TROPICAL STORM CONDITIONS POSSIBLE. 

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

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