Skip Navigation Links
NOAA NOAA United States Department of Commerce

HF Voice Broadcast (Caribbean/SW Atlantic)



000
FZNT31 KNHC 200842
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
442 AM EDT Fri Oct 20 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...A tropical wave along 80W will move across the rest
of the western Caribbean today, through the NW corner of the
Caribbean Sea and Central America on Saturday, and from
Guatemala into the eastern Pacific Ocean on Sunday. A second
tropical wave along 71W/72W will move across the remainder of
the Caribbean Sea on Friday, to 74W/75W late on Friday, to 78W
late on Saturday, and to 81W on Sunday. Scattered showers and
thunderstorms with gusty winds will accompany these waves. Fresh
to locally strong trades will spread westward to the central
Caribbean on Friday, and to the western Caribbean Saturday
through most of Sunday. Low pressure may form in the far SW
Caribbean on Monday and persist into Tuesday. 

NW Caribbean W of 85W

.TODAY...NE winds less than 10 kt. Seas 3 to 4 ft. 
.TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft. 
.SAT...E winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 to 5 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 15 kt. Seas 4 to 6 ft. 
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. 
.TUE...NE winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. 

Caribbean N of 15N between 72W and 85W

.TODAY...E winds 15 to 25 kt S of 18N, and E 10 to 15 kt
elsewhere. Seas 6 to 9 ft S of 18N, and 3 to 5 ft elsewhere. 
.TONIGHT...E winds 15 to 25 kt S of 18N, and E 10 to 15 kt
elsewhere. Seas 6 to 9 ft S of 18N, and 3 to 5 ft elsewhere. 
.SAT...E winds 15 to 25 kt S of 18N, and E 10 to 20 kt
elsewhere. Seas 7 to 10 ft S of 18N, and 4 to 6 ft elsewhere. 
.SAT NIGHT...E winds 15 to 25 kt S of 18N, and E 10 to 15 kt
elsewhere. Seas 7 to 10 ft S of 18N, and 4 to 6 ft elsewhere. 
.SUN...E winds 15 to 25 kt. Seas 6 to 9 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.MON...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.TUE...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 

Caribbean from 11N to 15N W of 72W

.TODAY...E winds 10 to 20 kt. Seas 7 to 10 ft. 
.TONIGHT...E winds 15 to 25 kt within 90 nm of coast of
Colombia, and E 10 to 20 kt elsewhere. Seas 7 to 10 ft. 
.SAT...E winds 15 to 25 kt. Seas 7 to 10 ft. 
.SAT NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. 
.SUN...E winds 15 to 25 kt. Seas 7 to 10 ft. 
.SUN NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. 
.MON...E winds 15 to 25 kt. Seas 7 to 10 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.TUE...E winds 10 to 15 kt. Seas 6 to 9 ft. 
.TUE NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. 

SW Caribbean S of 11N

.TODAY...NE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 3 to 5 ft. 
.TONIGHT...NW winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 to 5 ft. 
.SAT...Variable winds less than 10 kt. Seas 4 to 6 ft. 
.SAT NIGHT...Variable winds less than 10 kt. Seas 5 to 7 ft. 
.SUN...Variable winds less than 10 kt. Seas 5 to 7 ft. 
.SUN NIGHT...Variable winds less than 10 kt. Seas 5 to 7 ft. 
.MON...Variable winds less than 10 kt. Seas 4 to 6 ft. 
.MON NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft. 
.TUE...SW winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. 

Caribbean between 64W and 72W

.TODAY...E winds 15 to 25 kt. Seas 4 to 6 ft Gulf of Venezuela,
and 8 to 11 ft elsewhere. 
.TONIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft Gulf of
Venezuela, and 8 to 11 ft elsewhere. 
.SAT...E winds 15 to 25 kt. Seas 4 to 6 ft Gulf of Venezuela,
and 7 to 10 ft elsewhere. 
.SAT NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft Gulf of
Venezuela, and 7 to 10 ft elsewhere. 
.SUN...E winds 15 to 25 kt. Seas 7 to 10 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. 
.MON...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.TUE...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 

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

.TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.TONIGHT...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 20 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. 
.TUE...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.TUE 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 20 kt. Seas 6 to 9 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT NIGHT...E winds 10 to 20 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. 
.TUE...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. 

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...Cold front through 31N67W to 29N70W to 27N73W.
Stationary front from 27N73W to 25N78W. Trough from 27N72W to 
25N75W to 21N77W. A surface trough will extend from 26N65W to 
26N73W to 25N80W late on Friday, to 27N65W 25N75W late on
Saturday, dissipating on Sunday. Fresh SE return flow will set
up across the waters N of 23N W of 74W Sunday through Monday 
night, and increase to strong southerly winds late Monday night 
into Tuesday ahead of a cold front that will move across the SE 
United States. The front is expected to move across the far NW 
waters Tuesday and Tuesday night. 

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

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

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

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

Bahamas N of 22N

.TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TONIGHT...E 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 10 to 20 kt. Seas 3 to 5 ft. 
.SUN...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.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 10 to 15 kt. Seas 3 to 5 ft. 
.TUE...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. 

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

.TODAY...W of 70W, SE winds 10 to 15 kt. Elsewhere, S winds
10 to 15 kt, diminishing to less than 10 kt in the afternoon.
Seas 5 to 7 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.SAT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.SUN...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.MON...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TUE...E winds 10 kt. Seas 4 to 5 ft. 
.TUE NIGHT...SE winds 10 kt. Seas 4 to 5 ft. 

ATLC waters S of 22N W of 65W

.TODAY...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT...E winds 10 to 20 kt. Seas 5 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 4 to 6 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TUE...E winds 10 to 15 kt. Seas 4 to 5 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 

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

.TODAY...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.SAT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.SUN...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.MON...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.TUE...SE winds 10 to 15 kt. Seas 5 to 6 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.