Offshore Forecast
Issued by NWS

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
283
FZNT31 KNHC 132038
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
338 PM EST Thu Nov 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 shearline extends from near northwestern Haiti to
18.5N80W and to the Gulf of Honduras. Fresh to strong northeast
winds are north of the shearline. These winds will continue into
early Fri, then become fresh northeast to east winds through
Sat. Elsewhere, fresh to strong trade winds over the central
portion of the basin will continue into late Fri night.
Widespread rough seas will continue over these areas. Winds and
seas will slowly diminish into early Fri as the shearline
gradually weakens and high pressure to the north weakens.
Elsewhere, locally fresh northeast winds will continue to pulse
in the lee of Cuba and near the coasts of NW Venezuela and
Colombia into Sat. Scattered showers and thunderstorms will
continue west of about 80W through at least early Sat, however,
this activity is expected to be numerous in coverage along and
north of the shearline. Gentle to moderate trade winds and
moderate seas are expected over the basin this weekend into
early next week.

NW Caribbean W of 85W

.TONIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...NE winds 10 to 15 kt, shifting to E after midnight.
Seas 3 to 5 ft.
.SUN...E winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 ft.
.MON...E winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

Caribbean N of 15N between 72W and 85W

.TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...NE winds less than 10 kt S of 18N, and NE 10 to 20 kt
elsewhere. Seas 3 to 5 ft.
.SAT NIGHT...NE winds 10 to 15 kt, shifting to E after midnight.
Seas 3 to 5 ft.
.SUN...E winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.MON...E winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.TUE...E winds 10 to 15 kt. Seas 2 ft or less, building to 3 to
4 ft in the afternoon.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.

Caribbean from 11N to 15N W of 72W

.TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI...E winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI NIGHT...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.
.SAT...Within 90 nm of coast of Colombia, E winds 10 to 15 kt,
diminishing to less than 10 kt in the afternoon. Elsewhere, NE
winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.SUN...E winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 ft.
.MON...E winds less than 10 kt. Seas 3 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.

SW Caribbean S of 11N

.TONIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft.
.FRI...NE winds 10 to 15 kt, shifting to N in the afternoon.
Seas 5 to 7 ft.
.FRI NIGHT...NW winds less than 10 kt. Seas 4 to 6 ft.
.SAT...NW winds less than 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...NW winds less than 10 kt. Seas 3 to 4 ft.
.SUN...Variable winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...Variable winds less than 10 kt. Seas 3 ft.
.MON...Variable winds less than 10 kt. Seas 2 ft or less,
building to 3 ft in the afternoon.
.MON NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.TUE...NE winds less than 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...NE 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.
.FRI...E winds 10 to 15 kt. Seas 3 to 5 ft Gulf of Venezuela,
and 4 to 6 ft elsewhere.
.FRI NIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft.
.SAT...Gulf of Venezuela, NE winds 10 to 15 kt. Elsewhere, 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 less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...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 20 kt. Seas 4 to 5 ft.

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

.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...SE winds less than 10 kt. Seas 5 to 7 ft.
.FRI NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft.
.SAT...SE winds less than 10 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.SUN...E winds less than 10 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE 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

.TONIGHT...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 4 to 6 ft.
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A cold front extends from near 30N55W to 26N60W,
where it becomes a stationary front to 25N66W and to northwest
Haiti. Fresh northeast winds will continue north of the front to
25N between 69W and into early Fri afternoon, then moderate to
locally fresh winds will continue through late Fri night as the
fronts slowly dissipate. Seas just below 12 ft over the NE part
of the area will shift east of 55W late tonight into early Fri.
Otherwise, a new cold front moving eastward away from the
southeastern U.S. overnight will lead to moderate to fresh west
to northwest winds and locally rough seas north of 29N through
tonight. The cold front is expected to reach the central
Atlantic by late Fri. Looking ahead, a series of cold fronts
passing north of the region this weekend will lead to
strengthening winds and building seas over the northern forecast
waters while weak high pressure prevails elsewhere. Conditions
over these waters quiet down some early next week.

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

.TONIGHT...N winds 10 kt. Seas 3 to 4 ft.
.FRI...NE winds 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...NW winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN...W winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN NIGHT...W winds 10 to 20 kt. Seas 4 to 6 ft.
.MON...NW winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...NE winds 10 kt. Seas 3 to 4 ft.
.TUE...E winds 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds 10 kt. Seas 3 to 4 ft.

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

.TONIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft W of 70W, and
6 to 9 ft elsewhere.
.FRI...N winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft W of 70W, and
6 to 9 ft elsewhere.
.SAT...NW winds less than 10 kt W of 70W, and NW 10 to 15 kt
elsewhere. Seas 4 to 6 ft W of 70W, and 6 to 9 ft elsewhere.
.SAT NIGHT...W winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN...SW winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT...SW winds 10 to 20 kt. Seas 6 to 9 ft.
.MON...W winds 10 to 20 kt. Seas 6 to 9 ft.
.MON NIGHT...NW winds 10 to 15 kt. Seas 6 to 8 ft.
.TUE...N winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.

Bahamas N of 22N

.TONIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft.
.FRI...NE winds 10 to 20 kt. Seas 3 to 4 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 to 4 ft.
.MON...Variable winds less than 10 kt. Seas 2 to 4 ft.
.MON NIGHT...NE winds less than 10 kt. Seas 2 to 4 ft.
.TUE...NE winds less than 10 kt. Seas 2 to 4 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.

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

.TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...W of 70W, N winds 10 to 15 kt. Elsewhere, N to NE winds
10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft.
.SAT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN...E winds less than 10 kt. Seas 4 to 6 ft.
.SUN NIGHT...S winds less than 10 kt. Seas 4 to 6 ft.
.MON...S winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 3 to 5 ft.
.MON NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft.
.TUE...NE winds less than 10 kt. Seas 4 to 6 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.

ATLC waters S of 22N W of 65W

.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...NE winds less than 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds less than 10 kt. Seas 3 to 5 ft.
.SUN NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft.
.MON...Variable winds less than 10 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.TUE...NE winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.

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

.TONIGHT...E winds 10 kt. Seas 6 to 8 ft.
.FRI...SE winds 10 kt in the morning, becoming variable winds
less than 10 kt. Seas 5 to 7 ft.
.FRI NIGHT...Variable winds less than 10 kt. Seas 5 to 6 ft.
.SAT...SW winds less than 10 kt. Seas 4 to 6 ft.
.SAT NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft.
.SUN...Variable winds less than 10 kt. Seas 5 to 6 ft.
.SUN NIGHT...SE winds 10 kt. Seas 5 to 6 ft.
.MON...SE winds 10 kt. Seas 5 to 6 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.TUE...E winds 10 to 15 kt. Seas 5 to 6 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.