000
FZNT31 KNHC 201336
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
936 AM EDT Sat May 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...A very modest pressure gradient across the basin
will lead to moderate trades and slight to moderate seas over
the east and central Caribbean, except fresh to locally strong
trades S of 14N today. Winds will then gradually weaken across
the basin Sun through Wed as an inverted surface trough develops
N of the area along about 71W and slowly lifts northward.
Showers and thunderstorms will impact waters near the coasts of
South America and Panama as well as Caribbean waters E of 68W
through early next week. 

NW Caribbean W of 85W

.THIS AFTERNOON...NE winds 10 kt. Seas 2 ft or less. 
.TONIGHT...NE winds 10 kt. Seas 2 ft or less, building to 3 ft
after midnight. 
.SUN...NE winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less. 
.SUN NIGHT...NE winds 10 kt. Seas 2 ft or less, building to 3 ft
after midnight. 
.MON...N winds less than 10 kt. Seas 2 ft or less. 
.MON NIGHT...NE winds 10 kt. Seas 2 ft or less, building to 3 ft
after midnight. 
.TUE...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 2 ft or less. 
.TUE NIGHT...E winds less than 10 kt. Seas 2 ft or less. 
.WED...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 2 ft or less. 
.WED NIGHT...NE winds less than 10 kt. Seas 2 ft or less. 

Caribbean N of 15N between 72W and 85W

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

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...E winds 15 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 5 to 7 ft. 
.TONIGHT...NE winds 15 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft. 
.SUN...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 5 ft. 
.SUN NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. 
.MON...NE winds less than 10 kt. Seas 3 to 4 ft. 
.MON NIGHT...NE winds less than 10 kt. Seas 3 ft.
.TUE...E winds less than 10 kt. Seas 3 ft. 
.TUE NIGHT...NE winds less than 10 kt. Seas 3 ft. 
.WED...E winds less than 10 kt. Seas 3 ft. 
.WED NIGHT...E winds less than 10 kt. Seas 2 ft or less. 

SW Caribbean S of 11N

.THIS AFTERNOON...N winds 10 to 15 kt. Seas 5 to 7 ft. 
.TONIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN...N winds 10 to 15 kt, shifting to NE in the afternoon.
Seas 4 to 6 ft. 
.SUN NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. 
.MON...N winds less than 10 kt. Seas 3 to 4 ft. 
.MON NIGHT...N winds less than 10 kt. Seas 3 ft. 
.TUE...NE winds less than 10 kt. Seas 3 ft. 
.TUE NIGHT...NE winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less. 
.WED...NE winds less than 10 kt. Seas 2 ft or less. 
.WED NIGHT...NE 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 6 ft elsewhere. 
.TONIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of
Venezuela, and 5 to 6 ft elsewhere. 
.SUN...Gulf of Venezuela, E winds 10 to 15 kt in the morning,
becoming variable winds less than 10 kt,Seas 3 ft in the
morning, subsiding to 2 ft or less. Elsewhere, E winds 10 to
15 kt,Seas 4 to 6 ft. 
.SUN NIGHT...SE winds less than 10 kt Gulf of Venezuela, and E
10 to 15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
4 to 5 ft elsewhere. 
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.TUE...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.WED...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.TONIGHT...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 6 to 8 ft. 
.MON...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.TUE...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.TUE NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.WED...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.WED 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 20 kt. Seas 5 to 7 ft. 
.TONIGHT...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 4 to 6 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 kt. Seas 4 to 6 ft. 
.WED NIGHT...E winds 10 kt. Seas 4 to 6 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...The Atlantic high pressure ridge is centered on the
Azores high along 27W and extends SW to near 60W. An inverted 
trough is expected to develop along 71W by Sun afternoon and
drift northward through Wed. Scattered to numerous showers and 
thunderstorms are expected near and E of the trough through Wed 
night. 

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

.THIS AFTERNOON...Variable winds less than 10 kt. Seas 4 to
5 ft. 
.TONIGHT...SE winds less than 10 kt. Seas 4 ft. 
.SUN...Variable winds less than 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.MON...NE winds 10 kt. Seas 3 to 4 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 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. 
.WED...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. 

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

.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. 
.SUN...E winds less than 10 kt W of 70W, and SE 10 to 15 kt
elsewhere. Seas 5 to 7 ft. 
.SUN NIGHT...E winds less than 10 kt W of 70W, and SE 10 to
15 kt elsewhere. Seas 5 to 7 ft. 
.MON...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 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. 
.WED...NE winds 10 to 15 kt. Seas 6 to 9 ft. 
.WED NIGHT...N winds less than 10 kt, shifting to SE after
midnight. Seas 6 to 8 ft. 

Bahamas N of 22N

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

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.SUN...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. 
.MON...SE winds 10 to 15 kt. Seas 6 to 8 ft. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. 
.TUE...S winds 10 to 15 kt. Seas 6 to 8 ft. 
.TUE NIGHT...S winds less than 10 kt. Seas 5 to 7 ft. 
.WED...SW winds less than 10 kt. Seas 5 to 7 ft. 
.WED NIGHT...S winds less than 10 kt. Seas 4 to 6 ft. 

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN...SE winds 10 to 15 kt. Seas 3 to 5 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...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 to 6 ft. 
.TUE...S winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft. 
.TUE NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. 
.WED...S winds less than 10 kt. Seas 3 to 5 ft. 
.WED NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. 

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

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