657 
FZNT31 KNHC 210842
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
342 AM EST Thu Jan 21 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...High pressure centered in the Gulf of Mexico is
supporting fresh to strong winds over much of the Caribbean W of
70W, to include the Windward Passage, with winds pulsing to gale
force off Colombia. Winds and seas over the northwest Caribbean
and Windward Passage will diminish through tonight as the high
pressure weakens and moves into the Bahamas, although this
pattern will still support strong to near-gale force winds off
Colombia, briefly pulsing to gale force tonight and possibly Fri
night and Sat night. The high pressure weakens through Sat, but
little change is expected into early next week as stronger
higher pressure farther north. 

NW Caribbean W of 85W

.TODAY...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...SE winds 10 to 15 kt, shifting to E in the afternoon.
Seas 3 to 5 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.SAT...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft. 
.SAT NIGHT...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 4 to 5 ft. 
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. 

Caribbean N of 15N between 72W and 85W

.TODAY...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...S of 18N, E winds 10 to 20 kt. Elsewhere, E winds 10 to
15 kt, diminishing to less than 10 kt in the afternoon. Seas
4 to 6 ft. 
.FRI NIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. 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 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. 

Caribbean from 11N to 15N W of 72W

...GALE WARNING...
...GALE CONDITIONS POSSIBLE EACH NIGHT SAT NIGHT THROUGH MON 
NIGHT...

.REST OF TONIGHT...Within 90 nm of the coast of Colombia, NE winds
30 to 35 kt. Elsewhere NE to E winds 20 to 30 kt. Seas 7 to 11 ft.
.TODAY...E winds 20 to 30 kt within 90 nm of coast of Colombia,
and NE to E 20 to 25 kt elsewhere. Seas 7 to 11 ft. 
.TONIGHT...Within 90 nm of the coast of Colombia, NE winds
30 to 35 kt. Elsewhere NE to E winds 20 to 30 kt. Seas 7 to 11 ft.
.FRI...NE to E winds 20 to 25 kt. Seas 7 to 10 ft. 
.FRI NIGHT...NE to E winds 25 to 35 kt within 90 nm of coast of
Colombia, and NE to E 15 to 20 kt elsewhere. Seas 7 to 10 ft. 
.SAT...NE to E winds 20 to 25 kt. Seas 6 to 9 ft. 
.SAT NIGHT...NE to E winds 25 to 35 kt within 90 nm of coast of
Colombia, and NE to E 15 to 20 kt elsewhere. Seas 7 to 10 ft. 
.SUN...NE to E winds 20 to 25 kt. Seas 6 to 9 ft. 
.SUN NIGHT...Within 90 nm of the coast of Colombia, NE winds
30 to 35 kt. Seas 10 to 12 ft. Elsewhere NE to E winds 20 to 30 
kt. Seas 8 to 10 ft.
.MON...NE to E winds 20 to 25 kt. Seas 7 to 10 ft. 
.MON NIGHT...Within 90 nm of the coast of Colombia, NE winds
30 to 35 kt. Seas 10 to 12 ft. Elsewhere NE to E winds 20 to 30 
kt. Seas 8 to 10 ft.

SW Caribbean S of 11N

.TODAY...NE winds 10 to 20 kt. Seas 8 to 11 ft. 
.TONIGHT...NE winds 10 to 20 kt. Seas 7 to 9 ft. 
.FRI...NE winds 10 to 20 kt. Seas 7 to 10 ft. 
.FRI NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. 
.SAT...NE winds 10 to 15 kt. Seas 6 to 8 ft. 
.SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. 
.SUN...NE winds 10 to 20 kt. Seas 6 to 9 ft. 
.SUN NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. 
.MON...NE winds 10 to 20 kt. Seas 8 to 11 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. 

Caribbean between 64W and 72W

.TODAY...E winds 10 to 15 kt. Seas 3 ft Gulf of Venezuela, and
5 to 7 ft elsewhere. 
.TONIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft
elsewhere. 
.FRI...E winds 10 to 15 kt. Seas 3 ft Gulf of Venezuela, and
4 to 6 ft elsewhere. 
.FRI NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft. 
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT NIGHT...E winds 10 to 20 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 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. 

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

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

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

.TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.FRI...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.FRI NIGHT...E winds 10 to 20 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...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 15 kt. Seas 5 to 7 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A cold front from 30N65W to 29N70W to northeast
Florida will shift southeastward to along 27N by this evening,
then move east of the area tonight. Another front will move
south
into the waters between Bermuda and northeast Florida Fri
evening, reaching along 27N by Sat evening, along 23N east of
the
Turks and Caicos Islands by Sun evening, then stalling along 20N
off the coast of the Dominican Republic by Mon evening. High
pressure will build over the area in the wake of this front.

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

.TODAY...W winds 10 to 15 kt. Seas 3 to 4 ft. 
.TONIGHT...W winds 10 to 20 kt. Seas 3 to 5 ft. 
.FRI...W winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI NIGHT...W winds 10 to 15 kt. Seas 3 to 5 ft. 
.SAT...N winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON...S winds 15 to 20 kt. Seas 5 to 6 ft. 
.MON NIGHT...SW winds 10 to 20 kt. Seas 5 to 7 ft. 

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

.TODAY...W of 70W, NW winds less than 10 kt, shifting to W in
the afternoon. Elsewhere, NW winds 10 to 15 kt. Seas 6 to 8 ft W
of 70W, and 8 to 12 ft elsewhere.
.TONIGHT...W winds 10 to 20 kt. Seas 5 to 7 ft W of 70W, and
7 to 10 ft elsewhere. 
.FRI...W winds 10 to 20 kt. Seas 6 to 9 ft. 
.FRI NIGHT...W winds 10 to 20 kt W of 70W, and W 15 to 25 kt
elsewhere. Seas 7 to 10 ft. 
.SAT...NW winds 10 to 20 kt. Seas 6 to 9 ft. 
.SAT NIGHT...N winds 10 to 20 kt. Seas 7 to 10 ft.
.SUN...N winds 10 to 15 kt. Seas 7 to 10 ft. 
.SUN NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 7 to 10 ft. 
.MON...NE winds less than 10 kt, shifting to S in the afternoon.
Seas 6 to 9 ft. 
.MON NIGHT...SW winds 10 to 20 kt. Seas 6 to 8 ft. 

Bahamas N of 22N

.TODAY...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft. 
.FRI...SE winds less than 10 kt. Seas 3 ft. 
.FRI NIGHT...SE winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 2 ft or less. 
.SAT...Variable winds less than 10 kt. Seas 2 ft or less. 
.SAT NIGHT...NE winds less than 10 kt. Seas 2 ft or less,
building to 3 ft after midnight. 
.SUN...E winds less than 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. 

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

.TODAY...N winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 5 to 7 ft. 
.TONIGHT...N winds less than 10 kt. Seas 5 to 7 ft W of 70W, and
6 to 9 ft elsewhere. 
.FRI...Variable winds less than 10 kt, becoming S less than
10 kt in the afternoon. Seas 5 to 7 ft. 
.FRI NIGHT...NW winds less than 10 kt. Seas 4 to 6 ft. 
.SAT...W winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 5 to 7 ft. 
.SAT NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. 
.MON...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.MON NIGHT...SE winds less than 10 kt. Seas 6 to 8 ft. 

ATLC waters S of 22N W of 65W

.TODAY...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.FRI NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.SAT...E winds less than 10 kt. Seas 3 to 5 ft. 
.SAT NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. 
.SUN...NE winds less than 10 kt. Seas 3 to 5 ft. 
.SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 

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

.TODAY...SE winds less than 10 kt. Seas 6 ft. 
.TONIGHT...Variable winds less than 10 kt. Seas 5 to 6 ft. 
.FRI...Variable winds less than 10 kt. Seas 6 to 8 ft. 
.FRI NIGHT...Variable winds less than 10 kt. Seas 6 to 8 ft. 
.SAT...Variable winds less than 10 kt. Seas 6 to 8 ft. 
.SAT NIGHT...Variable winds less than 10 kt. Seas 5 to 7 ft. 
.SUN...Variable winds less than 10 kt, becoming N less than
10 kt in the afternoon. Seas 5 to 6 ft. 
.SUN NIGHT...N winds less than 10 kt. Seas 5 to 6 ft. 
.MON...NE winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 6 to 8 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft.