Offshore Forecast
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683
FZNT31 KNHC 132030
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
430 PM EDT Mon Oct 13 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 will move across Cuba and the NW
Caribbean Tue through Thu. Moderate to locally fresh winds and
moderate seas are expected in the wake of the front. Unsettled
weather conditions will persist along and ahead of the frontal
boundary. Elsewhere, a weak pressure gradient will support
moderate or lighter winds and slight to moderate seas over much
of the basin through the work week. Tropical Storm Lorenzo is E
of the forecast region near 15.2N 41.7W at 5 PM EDT, and is
moving northwest at 10 kt. Maximum sustained winds are 45 kt
with gusts to 55 kt, and the minimum central pressure is
1002 mb.

NW Caribbean W of 85W

.TONIGHT...NE winds less than 10 kt. Seas 2 ft or less, building
to 3 ft after midnight.
.TUE...Variable winds less than 10 kt, becoming N less than
10 kt in the afternoon. Seas 3 ft.
.TUE NIGHT...N winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.WED...NW winds less than 10 kt. Seas 2 ft or less, building to
3 ft in the afternoon.
.WED NIGHT...N winds less than 10 kt, shifting to S after
midnight. Seas 3 ft.
.THU...W 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 in the morning, becoming
variable winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...SE winds less than 10 kt. Seas 2 ft or less.
.SAT...SE winds 10 to 15 kt. Seas 2 ft or less.
.SAT NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to
3 to 4 ft after midnight.

Caribbean N of 15N between 72W and 85W

.TONIGHT...E winds less than 10 kt. Seas 2 ft or less.
.TUE...SE winds less than 10 kt. Seas 2 ft or less.
.TUE NIGHT...E 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.
.FRI...Variable winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.SAT...E winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...E winds less than 10 kt. Seas 2 ft or less.

Caribbean from 11N to 15N W of 72W

.TONIGHT...NE winds 10 to 15 kt within 90 nm of coast of
Colombia, and NE less than 10 kt elsewhere. Seas 2 ft or less.
.TUE...Within 90 nm of coast of Colombia, E winds 10 to 15 kt.
Elsewhere, E winds 10 to 15 kt, diminishing to less than 10 kt
in the afternoon. Seas 2 ft or less.
.TUE NIGHT...NE winds 10 to 15 kt within 90 nm of coast of
Colombia, and N less than 10 kt elsewhere. Seas 2 ft or less.
.WED...NE winds less than 10 kt in the morning, becoming
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.
.FRI...Variable winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.SAT...E winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less.

SW Caribbean S of 11N

.TONIGHT...Variable winds less than 10 kt, becoming NE less than
10 kt after midnight. Seas 2 ft or less.
.TUE...NW winds less than 10 kt. Seas 2 ft or less.
.TUE NIGHT...NW winds less than 10 kt. Seas 2 ft or less.
.WED...NW winds less than 10 kt in the morning, becoming
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.
.FRI...Variable winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.SAT...Variable winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...Variable winds less than 10 kt. Seas 2 ft or less.

Caribbean between 64W and 72W

.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 2 ft or less Gulf of Venezuela, and 3 to
4 ft elsewhere.
.TUE NIGHT...Gulf of Venezuela, NE winds 10 to 15 kt. Elsewhere,
E winds less than 10 kt, increasing to 10 to 15 kt after
midnight. Seas 3 ft.
.WED...Gulf of Venezuela, E winds 10 to 15 kt in the morning,
becoming variable winds less than 10 kt. Elsewhere, SE winds
less than 10 kt. Seas 3 ft.
.WED NIGHT...SE winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.THU...S winds less than 10 kt. Seas 2 ft or less.
.THU NIGHT...S winds less than 10 kt. Seas 2 ft or less.
.FRI...Variable winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.SAT...E winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft
in the afternoon.
.SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft.

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

.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 3 to 5 ft.
.TUE NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft.
.WED...S winds less than 10 kt. Seas 3 to 5 ft.
.WED NIGHT...S winds less than 10 kt. Seas 3 to 5 ft.
.THU...S winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...S winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft.
.SAT...SE winds less than 10 kt. Seas 3 to 5 ft.
.SAT 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

.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...E winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 3 to 5 ft.
.TUE NIGHT...SE winds less than 10 kt, shifting to E after
midnight. Seas 3 to 4 ft.
.WED...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...SE 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 20 kt. Seas 5 to 7 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A cold front extending from 31N72W to western Cuba
will move SE across the forecast waters through at least Thu.
The front will reach from 31N70W to western Cuba by Tue morning,
from near Bermuda to central Cuba by Wed morning, and from
31N60W to eastern Cuba by Thu morning. Fresh to strong winds and
rough seas are expected on either side of the front across the
waters N of 27N by Tue night. These marine conditions will shift
eastward with the front through late in the week. Tropical Storm
Lorenzo is E of the forecast region near 15.2N 41.7W at 5 PM EDT,
and is moving northwest at 10 kt. Maximum sustained winds are 45
kt with gusts to 55 kt, and the minimum central pressure is 1002
mb.

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

.TONIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...N winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...N winds 10 to 20 kt. Seas 6 to 9 ft.
.WED NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.THU...NE winds 10 to 20 kt. Seas 7 to 9 ft.
.THU NIGHT...NE winds 15 to 20 kt. Seas 7 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...E winds 10 kt. Seas 5 to 6 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft.

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

.TONIGHT...W of 70W, W winds 10 to 15 kt. Elsewhere, S winds
less than 10 kt, increasing to 10 to 15 kt after midnight. Seas
5 to 7 ft.
.TUE...W winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE NIGHT...NW winds 10 to 20 kt. Seas 6 to 8 ft.
.WED...NW winds 10 to 20 kt. Seas 7 to 10 ft.
.WED NIGHT...N winds 10 to 20 kt. Seas 8 to 11 ft.
.THU...N winds 10 to 20 kt. Seas 8 to 11 ft.
.THU NIGHT...N winds 10 to 20 kt. Seas 8 to 10 ft.
.FRI...N winds 10 to 20 kt. Seas 8 to 11 ft.
.FRI NIGHT...N winds 10 to 20 kt. Seas 8 to 13 ft.
.SAT...N winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 8 to 11 ft.
.SAT NIGHT...NE winds less than 10 kt. Seas 7 to 10 ft.

Bahamas N of 22N

.TONIGHT...E winds less than 10 kt. Seas 2 ft or less.
.TUE...NE winds less than 10 kt. Seas 2 ft or less.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less, building
to 3 ft after midnight.
.WED...N winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 3 to 4 ft.
.THU...N winds less than 10 kt. Seas 3 to 5 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...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 20 kt. Seas 3 to 5 ft.

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

.TONIGHT...SE winds less than 10 kt. Seas 4 to 5 ft.
.TUE...SW winds less than 10 kt. Seas 4 to 5 ft.
.TUE NIGHT...SW winds less than 10 kt, shifting to W after
midnight. Seas 4 to 5 ft.
.WED...W winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT...NW winds 10 to 15 kt. Seas 5 to 7 ft.
.THU...NW winds 10 to 15 kt. Seas 6 to 9 ft.
.THU NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft.
.FRI...N winds 10 to 15 kt. Seas 6 to 8 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft.
.SAT...NE winds 10 to 15 kt. Seas 6 to 9 ft.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft.

ATLC waters S of 22N W of 65W

.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...E winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 3 to 5 ft.
.TUE NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft.
.WED...SW winds less than 10 kt. Seas 3 ft.
.WED NIGHT...W winds less than 10 kt. Seas 3 to 4 ft.
.THU...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...NW winds less than 10 kt. Seas 3 to 5 ft.
.FRI...N winds less than 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. 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 5 to 7 ft.

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

.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 5 ft.
.TUE NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft.
.WED...S winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...SW winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...SW winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT...SW winds 10 to 15 kt, shifting to S in the afternoon.
Seas 5 to 7 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 6 to 8 ft.