000
FZNT31 KNHC 201511
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1111 AM EDT Thu Jul 20 2023

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...The pressure gradient between the Bermuda High and
lower pressure over Central America/N South America will
maintain fresh to near gale trades across the central Caribbean
through Sat. Winds should diminish down to fresh to strong Sun
and Mon. Fresh to locally strong trades will develop over the
Gulf of Honduras Sat night through Mon. 

NW Caribbean W of 85W

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI AND FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT THROUGH MON...E winds 10 to 20 kt. Seas 4 to 6 ft. 

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...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. 
.FRI AND FRI NIGHT...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 THROUGH MON...E winds 10 to 20 kt. Seas 4 to 6 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 30 kt within 90 nm of coast of
Colombia, and E 15 to 25 kt elsewhere. Seas 8 to 12 ft within
90 nm of coast of Colombia, and 7 to 10 ft elsewhere. 
.FRI AND FRI NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. 
.SAT THROUGH MON...NE winds 15 to 25 kt. Seas 6 to 9 ft. 

SW Caribbean S of 11N

.THIS AFTERNOON...NE winds 10 to 15 kt. Seas 6 to 9 ft. 
.TONIGHT...N winds less than 10 kt, shifting to NE after
midnight. Seas 6 to 8 ft. 
.FRI AND FRI NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. 
.SAT THROUGH MON...NE winds 10 to 20 kt. Seas 4 to 6 ft. 

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds 15 to 25 kt. Seas 3 to 5 ft Gulf of
Venezuela, and 6 to 8 ft elsewhere. 
.TONIGHT...E winds 20 to 30 kt Gulf of Venezuela, and E 15 to
25 kt elsewhere. Seas 6 to 8 ft. 
.FRI AND FRI NIGHT...E winds 20 to 30 kt Gulf of Venezuela, and
E 10 to 20 kt elsewhere. Seas 6 to 8 ft. 
.SAT THROUGH MON...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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TONIGHT...NE winds less than 10 kt. Seas 3 to 5 ft.
.FRI AND FRI NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. 
.SAT THROUGH MON...E winds 10 to 20 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 3 to 5 ft. 
.TONIGHT...E winds less than 10 kt. Seas 3 to 5 ft. 
.FRI AND FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.SAT THROUGH MON...E winds 10 to 15 kt. Seas 4 to 6 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...The Bermuda High centered near 31N59W this morning 
will weaken and shift east-southeastward through the weekend. 
Fresh to strong trades just north of Hispaniola and over the 
Windward Passage will diminish by Fri. Elsewhere across forecast
waters, winds will be moderate or weaker through Mon.

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

.THIS AFTERNOON...SW winds 10 kt. Seas 3 ft. 
.TONIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI AND FRI NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT THROUGH MON...SW winds 10 to 15 kt. Seas 4 to 6 ft. 

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

.THIS AFTERNOON...SW winds less than 10 kt. Seas 3 to 4 ft. 
.TONIGHT...W of 70W, SW winds less than 10 kt, increasing to
10 to 15 kt after midnight. Elsewhere, W winds less than 10 kt.
Seas 3 to 4 ft. 
.FRI AND FRI NIGHT...SW winds 10 to 15 kt W of 70W, and W less
than 10 kt elsewhere. Seas 4 to 6 ft. 
.SAT THROUGH MON...SW winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON NIGHT...S winds less than 10 kt. Seas 3 to 4 ft. 

Bahamas N of 22N

.THIS AFTERNOON...SE winds 10 to 20 kt. Seas 3 to 4 ft. 
.TONIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI AND FRI NIGHT...SE winds 10 to 15 kt. Seas 3 ft. 
.SAT THROUGH SUN...SE winds less than 10 kt. Seas 2 ft or less. 
.MON...E winds less than 10 kt. Seas 2 ft or less. 

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

.THIS AFTERNOON...SE winds 10 to 15 kt W of 70W, and SE less
than 10 kt elsewhere. Seas 4 to 5 ft. 
.TONIGHT...E winds less than 10 kt. Seas 4 to 5 ft. 
.FRI AND FRI NIGHT...SW winds less than 10 kt. Seas 3 to 4 ft. 
.SAT THROUGH SUN...SW winds less than 10 kt. Seas 3 to 4 ft. 
.SUN THROUGH MON...SE winds less than 10 kt. Seas 3 to 4 ft. 

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI AND FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT THROUGH MON...E winds 10 to 15 kt. Seas 3 to 5 ft. 

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

.THIS AFTERNOON...NE winds less than 10 kt. Seas 4 to 5 ft. 
.TONIGHT...NE winds less than 10 kt. Seas 4 to 5 ft.
.FRI...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 4 ft. 
.FRI NIGHT...Variable winds less than 10 kt. Seas 4 ft. 
.SAT...S winds less than 10 kt. Seas 3 to 4 ft. 
.SAT THROUGH MON...E winds 10 to 20 kt. Seas 4 to 6 ft.