862
FZNT31 KNHC 031513
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1113 AM EDT Wed Sep 3 2025

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...The Atlantic ridge centered west of the Azores near
34N37W combined with lower pressures in northern Colombia will
sustain moderate to fresh easterly trade winds along with
moderate seas across much of the central Caribbean through Sat.
Fresh to locally strong winds are expected to pulse at night off
Colombia and the Gulf of Venezuela through Fri night. In addition,
moderate to locally fresh E winds and slight to moderate seas
will prevail in the Gulf of Honduras through Sat night.

NW Caribbean W of 85W

.THIS AFTERNOON...SE winds less than 10 kt. Seas 2 ft or less.
.TONIGHT...SE winds 10 to 15 kt. Seas 2 ft or less, building to
3 ft after midnight.
.THU...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft.
.THU NIGHT...SE winds 10 to 15 kt. Seas 3 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 4 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...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 ft.

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds 10 to 15 kt S of 18N, and Variable
less than 10 kt elsewhere. Seas 3 ft.
.TONIGHT...S of 18N, E winds less than 10 kt, increasing to
10 to 15 kt after midnight. Elsewhere, Variable winds less than
10 kt, becoming SE less than 10 kt after midnight. Seas 3 ft.
.THU...E winds 10 to 15 kt S of 18N, and S less than 10 kt
elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere.
.THU NIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, Variable
winds less than 10 kt, becoming E less than 10 kt after
midnight. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 3 to 4 ft.

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...E winds 10 to 20 kt within 90 nm of coast of Colombia,
and E 10 to 15 kt elsewhere. Seas 4 to 6 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...E winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.

SW Caribbean S of 11N

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...N winds less than 10 kt. Seas 3 to 5 ft.
.THU...NE winds less than 10 kt. Seas 3 to 4 ft.
.THU NIGHT...NW winds less than 10 kt. Seas 3 to 4 ft.
.FRI...N winds less than 10 kt, shifting to S in the afternoon.
Seas 3 to 4 ft.
.FRI NIGHT...SW winds less than 10 kt. Seas 3 to 4 ft.
.SAT...SW winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...W winds less than 10 kt. Seas 3 to 4 ft.
.SUN...W winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...W winds less than 10 kt. Seas 3 ft.

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI...E winds 10 to 20 kt. Seas 3 to 5 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.SAT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN 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 15 kt. Seas 3 to 4 ft.
.TONIGHT...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 4 to 6 ft.
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN 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...E winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 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.
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A nearly stationary front will persist across the NW
part of the forecast region extending SW across the NW Bahamas
and the Florida Keys. The pressure gradient between the Atlantic
ridge and the front supports an area of fresh to strong southerly
winds with moderate to rough seas north of 27N and between 70W
and 73W. These winds will persist through late today. Scattered
to numerous showers and thunderstorms E of the front are affecting
the Bahamas, the Straits of Florida and Cuba. Unsettled weather
conditions will continue ahead of the front over the next few
days. Stronger winds and higher seas are likely near the strongest
storms. Elsewhere, the Atlantic ridge will continue to dominate
the weather pattern across the forecast waters, supporting gentle
to moderate winds and mostly moderate seas.

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

.THIS AFTERNOON...N winds 10 to 15 kt. Seas 5 to 7 ft.
.TONIGHT...NE winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 4 to 6 ft.
.THU...E winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.FRI...E winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...SE winds less than 10 kt. Seas 3 ft.
.SAT...S winds less than 10 kt. Seas 3 ft.
.SAT NIGHT...S winds less than 10 kt. Seas 3 ft.
.SUN...SE winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...SE winds less than 10 kt. Seas 3 ft.

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

.THIS AFTERNOON...SW winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft.
.THU...S winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...W of 70W, S winds 10 to 15 kt. Elsewhere, S winds
10 to 15 kt, diminishing to less than 10 kt after midnight. Seas
3 to 5 ft.
.FRI...S winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.FRI NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...SE 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.

Bahamas N of 22N

.THIS AFTERNOON...W winds less than 10 kt. Seas 2 ft or less.
.TONIGHT...SW winds less than 10 kt. Seas 2 ft or less.
.THU...SW winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 2 ft or less.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 ft or less.
.FRI...S winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...W winds less than 10 kt, shifting to SE after
midnight. Seas 2 ft or less.
.SAT...SE winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...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 less than 10 kt. Seas 2 ft or less.

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

.THIS AFTERNOON...S winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...S winds 10 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...SE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 3 to 4 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 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...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 ft.
.TONIGHT...SE winds 10 to 15 kt. Seas 3 ft.
.THU...SE winds 10 to 15 kt. Seas 3 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds 10 to 15 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 4 to 5 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.THU...E winds 10 to 15 kt. Seas 4 to 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI...E winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 6 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 5 to 6 ft.