148
FZNT31 KNHC 211337
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
937 AM EDT Sat Sep 21 2024

Marine Weather HF Voice Broadcast for the Tropical N Atlantic
from 07N to 19N W of 55W, the N Atlantic from 19N to
31N W of 55W including the 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 W of 55W

.SYNOPSIS...Moderate to fresh winds and moderate seas are
expected across the E and central Caribbean through tonight. A
broad area of low pressure is likely to form by the early to
middle part of next week over the northwestern Caribbean Sea and
the adjacent portions of Central America. Thereafter, gradual
development of this system is possible, and a tropical
depression could form as the system moves slowly to the north or
northwest over the northwestern Caribbean Sea and across the
Gulf of Mexico through the end of next week. There is a medium
chance of tropical cyclone formation in the next seven days.

NW Caribbean W of 85W

.THIS AFTERNOON...E winds less than 10 kt. Seas 2 ft or less.
.TONIGHT...E winds less than 10 kt. Seas 2 ft or less.
.SUN...E winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to
3 to 4 ft after midnight.
.MON...E winds 10 to 15 kt. Seas 3 to 4 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 10 to 15 kt. Seas 3 to 5 ft.
.WED...S winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT...SE winds 15 to 25 kt. Seas 4 to 6 ft.

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds 10 to 15 kt S of 18N, and SE less than
10 kt elsewhere. Seas 3 ft.
.TONIGHT...E winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.SUN...S of 18N, E winds less than 10 kt, increasing to 10 to
15 kt in the afternoon. Elsewhere, E winds less than 10 kt. Seas
2 ft or less.
.SUN NIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, E winds
less than 10 kt, increasing to 10 to 15 kt after midnight. Seas
2 ft or less.
.MON...SE winds 10 to 15 kt. Seas 2 ft or less.
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft.
.WED...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.WED NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft.

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...Within 90 nm of coast of Colombia, S winds
less than 10 kt. Elsewhere, SE winds 10 to 15 kt, diminishing to
less than 10 kt in the afternoon. Seas 3 to 4 ft.
.TONIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.SUN...SE winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...SE winds less than 10 kt. Seas 3 ft.
.MON...S winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...SE winds less than 10 kt. Seas 2 ft or less.
.TUE...SE winds 10 to 15 kt. Seas 3 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.WED...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

SW Caribbean S of 11N

.THIS AFTERNOON...S winds less than 10 kt. Seas 3 ft.
.TONIGHT...S winds less than 10 kt. Seas 3 ft.
.SUN...SW winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...SW winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.MON...S winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...S winds less than 10 kt. Seas 2 ft or less.
.TUE...S 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 between 64W and 72W

.THIS AFTERNOON...Gulf of Venezuela, SE winds less than 10 kt,
becoming variable winds less than 10 kt. Elsewhere, E winds
10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...NE winds less than 10 kt Gulf of Venezuela, and E
10 to 15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
3 to 4 ft elsewhere.
.SUN...Gulf of Venezuela, SE winds less than 10 kt in the
morning, becoming variable winds less than 10 kt. Elsewhere, E
winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to
4 ft elsewhere.
.SUN NIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 4 ft elsewhere.
.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.
.WED...E winds 10 to 15 kt. Seas 3 to 5 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...SW winds less than 10 kt. Seas 3 to 5 ft.
.TONIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft.
.SUN...Variable winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.MON...Variable winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.TUE...E winds less than 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.WED...E winds less than 10 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

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

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

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...An area of low pressure is centered near 25N55W.
Environmental conditions do not appear conducive for significant
development of this system during the next couple of days while
it drifts northwestward and then northward over the central or
western subtropical Atlantic. Otherwise, a weak cold front will
move off the SE coast of the US tonight and slowly move across
the waters N of 25N into Mon night.

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

.THIS AFTERNOON...NE winds less than 10 kt, increasing to 10 to
15 kt in the afternoon. Seas 3 to 5 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN...NE winds 10 kt. Seas 4 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.MON...E winds less than 10 kt. Seas 4 to 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.TUE...E winds 10 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...E winds 10 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 10 kt. Seas 5 to 6 ft.

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

.THIS AFTERNOON...Variable winds less than 10 kt. Seas 4 to
5 ft.
.TONIGHT...Variable winds less than 10 kt, becoming N less than
10 kt after midnight. Seas 4 to 6 ft.
.SUN...N winds 10 to 15 kt W of 70W, and W less than 10 kt
elsewhere. Seas 4 to 6 ft.
.SUN NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft.
.MON...N winds 10 to 15 kt. Seas 5 to 7 ft.
.MON NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft.
.TUE...N winds 10 to 15 kt. Seas 6 to 9 ft.
.TUE NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft.
.WED...N winds 10 kt. Seas 6 to 8 ft.
.WED NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft.

Bahamas N of 22N

.THIS AFTERNOON...Variable winds less than 10 kt. Seas 2 ft or
less.
.TONIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.SUN...Variable winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...Variable winds less than 10 kt, becoming E less
than 10 kt after midnight. Seas 2 ft or less.
.MON...Variable winds less than 10 kt, becoming E less than
10 kt in the afternoon. Seas 2 ft or less, building to 3 ft in
the afternoon.
.MON NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.TUE...E winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...E 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 less than 10 kt, becoming variable
winds less than 10 kt. Seas 4 to 5 ft.
.TONIGHT...Variable winds less than 10 kt. Seas 4 ft.
.SUN...Variable winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...Variable winds less than 10 kt, becoming NW less
than 10 kt after midnight. Seas 3 to 5 ft.
.MON...NW winds less than 10 kt. Seas 4 to 5 ft.
.MON NIGHT...N winds less than 10 kt. Seas 4 to 6 ft.
.TUE...N winds less than 10 kt. Seas 4 to 6 ft.
.TUE NIGHT...N winds less than 10 kt. Seas 5 to 7 ft.
.WED...NE winds less than 10 kt. Seas 5 to 7 ft.
.WED NIGHT...NE winds less than 10 kt. Seas 5 to 6 ft.

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...SE winds less than 10 kt, becoming variable
winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...E winds less than 10 kt. Seas 3 ft.
.SUN...Variable winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...Variable winds less than 10 kt. Seas 3 ft.
.MON...Variable winds less than 10 kt. Seas 3 ft.
.MON NIGHT...Variable winds less than 10 kt. Seas 3 ft.
.TUE...Variable winds less than 10 kt, becoming SE less than
10 kt in the afternoon. Seas 3 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.WED...E winds less than 10 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.

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

.THIS AFTERNOON...W winds less than 10 kt. Seas 4 to 5 ft.
.TONIGHT...W winds less than 10 kt. Seas 4 to 5 ft.
.SUN...W winds less than 10 kt. Seas 4 to 5 ft.
.SUN NIGHT...W winds less than 10 kt. Seas 4 ft.
.MON...SW winds less than 10 kt. Seas 4 ft.
.MON NIGHT...Variable winds less than 10 kt. Seas 4 ft.
.TUE...Variable winds less than 10 kt. Seas 4 ft.
.TUE NIGHT...Variable winds less than 10 kt, becoming E less
than 10 kt after midnight. Seas 4 ft.
.WED...E winds less than 10 kt. Seas 4 to 5 ft.
.WED NIGHT...E winds less than 10 kt. Seas 4 to 5 ft.