741
FZNT31 KNHC 111459
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1059 AM EDT Tue Mar 11 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...A cold front extending from east-central Cuba to the
Gulf of Honduras will move SE and reach from east Cuba to
central Honduras by this evening, and from Haiti to the Gulf of
Honduras by Wed morning before dissipating. Expect fresh N winds
and moderate seas behind the front through late this morning.
Otherwise, weak high pressure N of the area will support
moderate to fresh NE to E trade winds offshore of northwestern
Colombia and in the Gulf of Venezuela most of the week. Winds
there will pulse to fresh to strong speeds at night Thu into the
weekend. Fresh to strong SE to S winds will develop across the
Gulf of Honduras and NW Caribbean Fri night through Sat as
strong high pressure builds across the western Atlantic.

NW Caribbean W of 85W

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

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds less than 10 kt S of 18N, and NW 10 to
15 kt elsewhere. Seas 3 to 5 ft.
.TONIGHT...NE winds less than 10 kt. Seas 3 to 5 ft.
.WED...E winds less than 10 kt S of 18N, and NE 10 to 15 kt
elsewhere. Seas 3 to 4 ft.
.WED NIGHT...E winds less than 10 kt. Seas 3 ft.
.THU...E winds 10 to 15 kt. Seas 3 ft.
.THU NIGHT...E winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.FRI...E winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less, building to 3 ft after
midnight.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.

Caribbean from 11N to 15N W of 72W

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

SW Caribbean S of 11N

.THIS AFTERNOON...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.
.WED NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...N winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.
.THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.
.SAT NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft.

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds 10 to 20 kt Gulf of Venezuela, and E
10 to 15 kt elsewhere. Seas 3 to 5 ft.
.TONIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 4 ft.
.WED...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt
elsewhere. Seas 3 to 4 ft.
.WED NIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 4 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT 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 4 to 6 ft.
.TONIGHT...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 less than 10 kt. Seas 4 to 6 ft.
.THU...SE winds less than 10 kt. Seas 4 to 6 ft.
.THU NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.FRI...E winds less than 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.SAT...E winds less than 10 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds less than 10 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 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...E winds 10 to 15 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, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 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.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A 992 mb low pressure system located offshore North
Carolina will shift eastward today, dragging a cold front across
the western Atlantic waters. The front currently extends from
the low through 31N69W across the central Bahamas and east-
central Cuba. Strong to gale-force SW winds are expected through
Wed morning within about 120 nm E of the front and N of 26N,
accompanied by strong thunderstorms. Strong to gale-force W to NW
winds and very rough seas are expected behind the front and N of
26N through Wed. The front will reach from near Bermuda to
eastern Cuba by this evening, from 31N59W to the Windward Passage
by Wed morning, and from 31N51W to the N coast of Hispaniola by
Thu morning. The low will lift out to the northeast by mid week,
as the front weakens while moving east of the area, with a
trailing portion of the front stalling across the coastal waters
of Puerto Rico early Fri before dissipating. Winds and seas will
diminish from west to east through late week as high pressure
builds over the western Atlantic in the wake of the front.

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

...GALE WARNING...

.THIS AFTERNOON...NW winds 25 to 35 kt. Seas 10 to 15 ft.
.TONIGHT...NW winds 15 to 25 kt, shifting to N 10 to 15 kt after
midnight. Seas 7 to 10 ft.
.WED...NW winds 10 kt in the morning, becoming variable winds
less than 10 kt. Seas 6 to 8 ft.
.WED NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft.
.THU...S winds 10 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...S winds 10 to 15 kt. Seas 3 ft.
.FRI...S winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 ft.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...SE winds 15 to 20 kt. Seas 3 to 5 ft.
.SAT NIGHT...SE winds 15 to 25 kt. Seas 5 to 7 ft.

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

...GALE WARNING...

.THIS AFTERNOON...W winds 25 to 35 kt. Seas 11 to 16 ft W of
70W, and 7 to 10 ft elsewhere.
.TONIGHT...NW winds 20 to 30 kt W of 70W, and W 20 to 30 kt
elsewhere. Seas 11 to 16 ft.
.WED...N winds 15 to 25 kt. W of 70W, seas 9 to 14 ft, subsiding
to 8 to 11 ft in the afternoon. Elsewhere, seas 11 to 15 ft.
.WED NIGHT...W of 70W, N winds less than 10 kt in the evening,
becoming variable winds less than 10 kt. Elsewhere, N winds
10 to 20 kt. Seas 6 to 8 ft W of 70W, and 8 to 11 ft elsewhere.
.THU...SE winds less than 10 kt. Seas 5 to 7 ft.
.THU NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft.
.FRI...SE winds 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...SE winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT NIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft.

Bahamas N of 22N

.THIS AFTERNOON...NW winds 15 to 25 kt. Seas 4 to 6 ft.
.TONIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft.
.WED...NE winds less than 10 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.THU...SE winds less than 10 kt. Seas 3 to 4 ft.
.THU NIGHT...SE winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.FRI...SE winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to
3 ft after midnight.
.SAT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.

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

.THIS AFTERNOON...W winds 15 to 25 kt W of 70W, and S 20 to
30 kt elsewhere. Seas 6 to 9 ft.
.TONIGHT...NW winds 15 to 25 kt W of 70W, and W 20 to 30 kt
elsewhere. Seas 8 to 11 ft.
.WED...N winds 10 to 20 kt W of 70W, and NW 15 to 25 kt
elsewhere. Seas 8 to 11 ft.
.WED NIGHT...W of 70W, N winds 10 to 15 kt, shifting to NE after
midnight. Elsewhere, N winds 10 to 15 kt. Seas 7 to 10 ft.
.THU...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.THU NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.FRI...E winds less than 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...S winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...W winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...NW winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft.
.WED NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft.
.THU...NE winds less than 10 kt. Seas 4 to 6 ft.
.THU NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.FRI...NE winds less than 10 kt. Seas 3 to 5 ft.
.FRI NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft.
.SAT...NE winds 10 to 15 kt. Seas 3 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

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 4 to 5 ft.
.TONIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft.
.WED...S winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT...S winds less than 10 kt. Seas 5 to 7 ft.
.THU...SW winds less than 10 kt. Seas 5 to 7 ft.
.THU NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft.
.FRI...E winds less than 10 kt. Seas 5 to 6 ft.
.FRI NIGHT...E winds 10 kt. Seas 5 to 7 ft.
.SAT...E winds 10 to 15 kt. Seas 6 to 8 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft.