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HF Voice Broadcast (Caribbean/SW Atlantic)



344 
FZNT31 KNHC 231516
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1116 AM EDT Fri Jul 23 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 across the central Atlantic
extends W-SW to central Florida and is combining with low
pressure over N Colombia to support fresh to strong E winds over
the central Caribbean. Fresh to strong winds are expected to
continue across the central Caribbean through early Sat before
the ridge weakens west of 75W. 

NW Caribbean W of 85W

.THIS AFTERNOON...NE winds 10 to 15 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 in the morning, becoming variable
winds less than 10 kt. Seas 2 to 3 ft. 
.SAT NIGHT...E winds less than 10 kt. Seas 2 to 3 ft. 
.SUN...Variable winds less than 10 kt. Seas 2 to 3 ft.
.SUN NIGHT...SE winds less than 10 kt. Seas 2 to 3 ft. 
.MON...SE winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 5 to 7 ft S of 18N,
and 3 to 4 ft elsewhere. 
.TONIGHT...E winds 10 to 20 kt S of 18N, and NE less than 10 kt
elsewhere. Seas 4 to 6 ft. 
.SAT...S of 18N, E winds 10 to 15 kt. Elsewhere, NE winds less
than 10 kt in the morning, becoming variable winds less than
10 kt. Seas 4 to 6 ft S of 18N, and 3 to 4 ft elsewhere. 
.SAT NIGHT...NE winds 10 to 15 kt S of 18N, and Variable less
than 10 kt elsewhere. Seas 4 to 6 ft S of 18N, and 2 ft or less
elsewhere. 
.SUN...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds 10 to 15 kt.
.MON...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...E winds 15 to 25 kt. Seas 7 to 10 ft. 
.TONIGHT...E winds 20 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 9 ft. 
.SAT...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT NIGHT...NE winds 10 to 15 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 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 

SW Caribbean S of 11N

.THIS AFTERNOON...NE winds 10 to 20 kt. Seas 7 to 10 ft. 
.TONIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. 
.SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT NIGHT...NW winds less than 10 kt, shifting to S after
midnight. Seas 4 to 6 ft. 
.SUN...S winds less than 10 kt. Seas 3 to 5 ft. 
.SUN NIGHT...SW winds less than 10 kt. Seas 3 to 5 ft. 
.MON...S winds less than 10 kt. Seas 3 to 4 ft. 
.MON NIGHT...SW winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 ft. 
.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. 

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of
Venezuela, and 5 to 7 ft elsewhere. 
.TONIGHT...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 20 kt. Seas 3 to 5 ft Gulf of Venezuela,
and 4 to 6 ft elsewhere. 
.SAT NIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 4 ft Gulf of Venezuela, and 4 to 6 ft
elsewhere. 
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 

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

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.SAT...E winds 10 to 20 kt. Seas 6 to 8 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 4 to 6 ft. 
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.TONIGHT...E winds 10 to 15 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 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 4 to 6 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...The Atlantic ridge is centered on a 1028 mb high
north of the area near 34N41W and extends W-SW to central
Florida. Moderate to fresh trades will prevail south of 25N
through Sun. Low pressure along a frontal boundary will sink
southward today through the weekend off the Georgia and NE
Florida coasts. Environmental conditions are forecast to be
marginally conducive for some gradual development over the
weekend and into early next week while the system drifts
offshore of the southeastern United States. Regardless of
development, showers and thunderstorms and moderate to fresh
winds can be expected over the weekend off the Florida coast as
the ridge remains in place. 

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

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas 3 to 4 ft. 
.TONIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. 
.SAT...S winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...SE winds 10 kt. Seas 4 to 5 ft. 
.MON...SE winds 10 kt. Seas 4 to 5 ft. 
.MON NIGHT...SE winds 10 kt. Seas 4 ft. 
.TUE...S winds 10 kt. Seas 4 to 5 ft. 
.TUE NIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft. 

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

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas 4 to 5 ft. 
.TONIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft. 
.SAT...S winds 10 to 15 kt. Seas 4 to 5 ft. 
.SAT NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft. 
.SUN...SE 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 10 to 15 kt. Seas 4 to 6 ft. 
.MON NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. 
.TUE...S winds 10 kt. Seas 4 to 5 ft. 
.TUE NIGHT...S winds less than 10 kt. Seas 4 to 5 ft. 

Bahamas N of 22N

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 ft. 
.SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...SE winds less than 10 kt. Seas 3 ft. 
.SUN NIGHT...E to SE winds less than 10 kt. Seas 3 to 4 ft.
.MON...SE winds less than 10 kt. Seas 3 to 4 ft. 
.MON NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. 
.TUE...SE winds less than 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. 

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

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT NIGHT...W of 70W, E winds 10 to 15 kt. Elsewhere, SE winds 
10 to 15 kt. Seas 5 to 7 ft.
.SUN...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON NIGHT...SE 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 4 to 6 ft. 

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...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...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 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. 

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

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