Offshore Forecast
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804
FZNT31 KNHC 031504
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1004 AM EST Wed Dec 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...Building high pressure north of the Caribbean Sea
will support moderate to fresh easterly winds over much of the
basin starting Thu and continuing into early next week.
Meanwhile, moderate to locally rough seas, in NE swell, will
persist across the NE Caribbean passages through the week and
into the weekend. A surface trough, located near 62W, will
continue to move westward across the eastern Caribbean through
tonight before dissipating. Fresh to strong winds and locally
rough seas follow this trough. The associated moisture is
producing some shower activity and isolated thunderstorms across
much of the Lesser Antilles. Looking ahead, a cold front may
approach the NW Caribbean early next week.

NW Caribbean W of 85W

.TODAY...NE winds less than 10 kt. Seas 3 ft.
.TONIGHT...NE winds less than 10 kt, shifting to E after
midnight. Seas 3 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...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...SE winds less than 10 kt. Seas 3 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.

Caribbean N of 15N between 72W and 85W

.TODAY...S of 18N, NE winds 10 to 15 kt, diminishing to less
than 10 kt in the afternoon. Elsewhere, NE winds less than
10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less.
.TONIGHT...NE winds 10 to 15 kt. 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 5 ft.
.FRI...E 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 20 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 10 to 15 kt. Seas 3 to 5 ft.

Caribbean from 11N to 15N W of 72W

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

SW Caribbean S of 11N

.TODAY...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...NE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 3 to 5 ft.
.FRI...NE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.SAT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.SUN...Variable winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.

Caribbean between 64W and 72W

.TODAY...NE winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 5 ft elsewhere.
.TONIGHT...E winds 10 to 15 kt. Gulf of Venezuela, seas 3 ft in
the evening, subsiding to 2 ft or less. Elsewhere, seas 4 to
6 ft.
.THU...E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela,
and 3 to 5 ft elsewhere.
.THU NIGHT...E winds 10 to 20 kt. Gulf of Venezuela, seas 3 ft
in the evening, subsiding to 2 ft or less. Elsewhere, seas 4 to
6 ft.
.FRI...E winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT NIGHT...E winds 10 to 20 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 4 to 6 ft.

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

.TODAY...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.THU...E winds 10 to 20 kt. Seas 6 to 9 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI...E winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT...E winds 10 to 15 kt. Seas 6 to 8 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.

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

.TODAY...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.THU...E winds 10 to 20 kt. Seas 6 to 9 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI...E winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A cold front extends from 31N70W to near Melbourne,
Florida. The front will extend from near Bermuda to South Florida
later this morning, and from 31N68W to central Cuba by Thu
morning, and from 31N55W to eastern Cuba by Fri morning while
dissipating. Looking ahead, a cold front will reach the waters
off NE Florida Fri resulting in fresh to locally strong winds N
of 29N and west of 75W by Fri afternoon. These winds and locally
rough seas will then shift eastward into the weekend.

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

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

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

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

Bahamas N of 22N

.TODAY...N winds less than 10 kt. Seas 3 ft.
.TONIGHT...NE winds less than 10 kt. 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 4 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...SE winds less than 10 kt. Seas 3 ft.
.SAT NIGHT...SE winds less than 10 kt. Seas 3 ft.
.SUN...S winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft.
.SUN NIGHT...S winds less than 10 kt. Seas 2 ft or less.

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

.TODAY...SE winds less than 10 kt, shifting to NE in the
afternoon. Seas 5 to 6 ft.
.TONIGHT...E winds less than 10 kt. Seas 5 to 6 ft.
.THU...NE winds less than 10 kt. Seas 5 to 6 ft.
.THU NIGHT...NE winds 10 to 15 kt W of 70W, and NE less than
10 kt elsewhere. Seas 5 to 6 ft.
.FRI...E winds less than 10 kt. Seas 5 to 6 ft.
.FRI NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft.
.SAT...SE winds less than 10 kt. Seas 4 to 5 ft.
.SAT NIGHT...SE winds less than 10 kt. Seas 5 ft.
.SUN...S winds less than 10 kt. Seas 4 to 5 ft.
.SUN NIGHT...S winds 10 kt. Seas 4 to 5 ft.

ATLC waters S of 22N W of 65W

.TODAY...E winds less than 10 kt. Seas 3 to 5 ft.
.TONIGHT...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.
.SUN...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

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

.TODAY...SE winds 10 to 20 kt. Seas 6 to 9 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft.
.THU...E winds 10 to 15 kt. Seas 6 to 8 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft.
.FRI...E winds 10 to 15 kt. Seas 6 to 7 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft.
.SAT...E winds 10 to 15 kt. Seas 6 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 6 ft.
.SUN...E winds 10 to 15 kt. Seas 6 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft.