812
FZNT31 KNHC 242017
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
317 PM EST Mon Nov 24 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 pressure gradient between a ridge north of the
islands and lower pressures in NW Colombia will sustain fresh to
strong trade winds and rough seas in the central Caribbean
through late this week. The strongest winds of 25 to 30 kt, and
highest seas of 9 to 11 ft are expected offshore Colombia mainly
at night. In the remainder of the basin, the weather pattern
will support moderate to fresh winds along with moderate seas
through the period. Looking ahead, a cold front will enter the
NW Caribbean on Fri, followed by strong winds and rough seas.

NW Caribbean W of 85W

.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...E winds 10 to 15 kt, shifting to NE after midnight.
Seas 3 to 4 ft.
.THU...NE winds less than 10 kt. Seas 3 to 4 ft.
.THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.

Caribbean N of 15N between 72W and 85W

.TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 20 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.THU...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.

Caribbean from 11N to 15N W of 72W

.TONIGHT...E winds 20 to 25 kt within 90 nm of coast of
Colombia, and E 10 to 20 kt elsewhere. Seas 6 to 9 ft.
.TUE...E winds 20 to 25 kt within 90 nm of coast of Colombia,
and E 15 to 25 kt elsewhere. Seas 6 to 9 ft.
.TUE NIGHT...E winds 20 to 25 kt within 90 nm of coast of
Colombia, and E 15 to 25 kt elsewhere. Seas 6 to 9 ft.
.WED...E winds 20 to 25 kt within 90 nm of coast of Colombia,
and E 15 to 25 kt elsewhere. Seas 7 to 10 ft.
.WED NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft.
.THU...NE winds 15 to 20 kt. Seas 7 to 10 ft.
.THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.

SW Caribbean S of 11N

.TONIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.TUE NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.WED...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.WED NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft.
.THU...NE winds 10 to 20 kt. Seas 7 to 10 ft.
.THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI...NE winds 10 to 15 kt. Seas 6 to 8 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT...N winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft.
.SAT NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft.

Caribbean between 64W and 72W

.TONIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft.
.TUE...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE NIGHT...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 5 to 7 ft.
.WED...E winds 10 to 20 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.THU...E winds 10 to 20 kt. Seas 5 to 7 ft.
.THU NIGHT...E winds 10 to 20 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 4 to 6 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.

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

.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...E winds 10 to 15 kt. Seas 4 to 5 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.WED...E winds 10 to 20 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.THU...E winds 10 to 20 kt. Seas 5 to 7 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 7 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 20 kt. Seas 5 to 7 ft.

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

.TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.WED...E winds 10 to 20 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 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 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 4 to 6 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A weak cold front extends from near Bermuda to the
near Cape Canaveral, Florida. The eastern portion of the front
will continue eastward and reach from 31N52W to 27N63W by Tue
morning, while the portion west of 70W starts to lift north.
High pressure located off the Carolinas will shift eastward
following the front, supporting moderate to fresh northeast to
east winds and moderate seas over the region. Looking ahead,
winds and seas will diminish west of 70W by Wed, ahead of a
stronger cold front expected to move off the northeast Florida
coast Wed night. The front will reach from Bermuda to the Straits
of Florida by early Fri, followed by fresh to strong NW winds
and building seas through Fri night. Looking ahead, a tightened
pressure gradient in the wake of the front is forecast to bring
increasing winds and building seas across much of the forecast
area during the upcoming weekend.

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

.TONIGHT...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...S winds 10 to 15 kt. Seas 3 to 4 ft.
.WED...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.THU...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...NW winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI...N winds 15 to 20 kt. Seas 6 to 7 ft.
.FRI NIGHT...NE winds 15 to 20 kt. Seas 5 to 7 ft.
.SAT...NE winds 15 to 20 kt. Seas 5 to 7 ft.
.SAT NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft.

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

.TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...E winds 10 to 15 kt. Seas 4 to 6 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...S winds 10 to 15 kt. Seas 4 to 5 ft.
.THU...S winds 10 to 15 kt. Seas 4 to 5 ft.
.THU NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...NW winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT NIGHT...NE winds 15 to 20 kt. Seas 6 to 9 ft.

Bahamas N of 22N

.TONIGHT...E winds 10 to 15 kt. Seas 3 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.
.THU...E winds less than 10 kt. Seas 3 to 4 ft.
.THU NIGHT...NE winds less than 10 kt. Seas 3 ft.
.FRI...NE winds 10 to 20 kt. Seas 3 to 5 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT...NE winds 15 to 25 kt. Seas 5 to 7 ft.
.SAT NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft.

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

.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 6 ft.
.WED...E winds 10 to 20 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.THU...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.THU NIGHT...SE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 4 to 6 ft.
.FRI...E winds less than 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT...NE winds 15 to 25 kt. Seas 6 to 9 ft.
.SAT NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft.

ATLC waters S of 22N W of 65W

.TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.TUE...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 6 ft.
.WED...E winds 10 to 20 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.THU...E winds 10 to 20 kt. Seas 5 to 7 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 6 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.

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

.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 4 to 5 ft.
.TUE NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft.
.WED...E winds 15 to 20 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft.
.THU...E winds 15 to 20 kt. Seas 7 to 8 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 6 to 7 ft.
.FRI NIGHT...E winds 15 kt. Seas 6 to 7 ft.
.SAT...E winds 15 kt. Seas 6 to 7 ft.
.SAT NIGHT...E winds 15 to 20 kt. Seas 6 to 7 ft.