375
FZNT31 KNHC 221347
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
947 AM EDT Sun Sep 22 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 locally fresh winds and moderate seas
are expected across the E and central Caribbean today. A broad
area of low pressure over the W Caribbean Sea and adjacent parts
of Central America is supporting scattered to locally numerous
showers and thunderstorms over the western Carribbean. Winds and
seas may be locally higher in the showers and thunderstorms.
Environmental conditions appear favorable for gradual
development of this system during the next several days. A
tropical depression is likely to form while the system moves
slowly northward across the northwestern Caribbean Sea and Gulf
of Mexico through the end of the week. There is a high 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 10 to 15 kt. Seas 2 ft or less, building to
3 ft after midnight.
.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 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...NE winds 10 to 15 kt, shifting to SW after
midnight. Seas 4 to 6 ft.
.WED...SW winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT...S winds 10 to 20 kt. Seas 4 to 6 ft.
.THU...S winds 10 to 20 kt. Seas 4 to 6 ft.
.THU NIGHT...S winds 10 to 15 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 E less than
10 kt elsewhere. Seas 2 ft or less.
.TONIGHT...S of 18N, E winds 10 to 15 kt, shifting to SE after
midnight. 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, building to 3 ft
in the afternoon.
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...SE winds 10 to 20 kt. Seas 3 to 5 ft.
.TUE NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.WED...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.WED NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft.
.THU...SE winds 10 to 20 kt. Seas 5 to 7 ft.
.THU NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft.

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...S winds less than 10 kt. Seas 3 ft.
.TONIGHT...SE winds less than 10 kt. Seas 3 ft.
.MON...Within 90 nm of coast of Colombia, S winds less than
10 kt. Elsewhere, S winds less than 10 kt, increasing to 10 to
15 kt in the afternoon. Seas 3 ft.
.MON NIGHT...SE winds less than 10 kt. Seas 3 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, diminishing to less than 10 kt
after midnight. Seas 3 to 4 ft.
.THU...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.

SW Caribbean S of 11N

.THIS AFTERNOON...SW winds less than 10 kt. Seas 3 ft.
.TONIGHT...S winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.MON...S winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. 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.
.THU...Variable winds less than 10 kt. Seas 2 ft or less.
.THU 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 2 ft or less Gulf of Venezuela, and 3 to 4 ft
elsewhere.
.TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 4 ft elsewhere.
.MON...S 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.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 4 ft elsewhere.
.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 5 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU 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...Variable winds less than 10 kt. Seas 3 to
4 ft.
.TONIGHT...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 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU 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 less than 10 kt. Seas 3 to 5 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...E winds less than 10 kt. 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 10 to 15 kt. Seas 3 to 5 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...An area of low pressure centered near 27N56W is
producing scattered showers and thunderstorms. Although
environmental conditions are not very favorable for development,
a short-lived tropical depression cannot be ruled out if showers
and thunderstorms become better organized while the system moves
generally northward over the central subtropical Atlantic. There
is a low chance of tropical formation over the next 48 hours.
Otherwise, a weak cold front will move off the SE coast of the US
this afternoon, then slowly move across the waters N of 25N
through Mon night.

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

.THIS AFTERNOON...NE winds less than 10 kt. Seas 4 to 5 ft.
.TONIGHT...E winds 10 kt. Seas 4 to 5 ft.
.MON...NE winds less than 10 kt. Seas 4 to 5 ft.
.MON NIGHT...E winds 10 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 to 15 kt. Seas 5 to 7 ft.
.WED NIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.THU...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.THU NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft.

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

.THIS AFTERNOON...NW winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft.
.MON...N winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 5 to 7 ft.
.MON NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft.
.TUE...NW winds 10 to 15 kt. Seas 6 to 9 ft.
.TUE NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft.
.WED...N winds 10 kt. Seas 6 to 8 ft.
.WED NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft.
.THU...E winds less than 10 kt. Seas 5 to 7 ft.
.THU NIGHT...SE winds less than 10 kt. Seas 6 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.
.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 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...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.THU...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.THU 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...W winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...NW winds less than 10 kt. 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...Variable winds less than 10 kt. Seas 4 to 6 ft.
.TUE NIGHT...N winds less than 10 kt. Seas 5 to 6 ft.
.WED...NE winds less than 10 kt. Seas 5 to 6 ft.
.WED NIGHT...E winds less than 10 kt. Seas 5 to 6 ft.
.THU...SE winds less than 10 kt. Seas 5 to 6 ft.
.THU NIGHT...SE winds less than 10 kt. Seas 5 to 6 ft.

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...Variable winds less than 10 kt. Seas 3 ft.
.TONIGHT...Variable winds less than 10 kt. Seas 3 ft.
.MON...Variable winds less than 10 kt. Seas 3 ft.
.MON NIGHT...SE winds less than 10 kt. Seas 3 ft.
.TUE...SE winds less than 10 kt. Seas 3 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 3 to 5 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.
.THU...E winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds 10 to 15 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 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 10 kt. Seas 4 to 5 ft.
.THU...E winds 10 kt. Seas 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.