344
FZNT31 KNHC 050907
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
407 AM EST Fri Dec 5 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 moderate pressure gradient between high pressure
centered north of the islands and lower pressures in northern
South America will sustain moderate to fresh easterly trade
winds and moderate seas over the central and eastern Caribbean
through the middle of next week. Moderate or lighter winds and
slight to moderate seas will prevail elsewhere. A persistent
NE-E swell will support rough seas in the Atlantic passages of
the Lesser Antilles through the forecast period. Looking ahead,
a cold front may approach the northwestern Caribbean early next
week.

NW Caribbean W of 85W

.TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.TONIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.SAT...E winds less than 10 kt. Seas 3 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 3 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.
.MON...E winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...NE winds less than 10 kt. Seas 3 ft.
.TUE...Variable winds less than 10 kt, becoming NE less than
10 kt in the afternoon. Seas 3 to 4 ft.
.TUE NIGHT...NE winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 to 5 ft.

Caribbean N of 15N between 72W and 85W

.TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...S of 18N, E winds 10 to 20 kt. Elsewhere, E winds
10 to 15 kt, diminishing to less than 10 kt after midnight. Seas
4 to 6 ft.
.SAT...E winds 10 to 20 kt S of 18N, and SE less than 10 kt
elsewhere. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 4 to 6 ft S of 18N, and 3 ft elsewhere.
.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.
.MON...E winds less than 10 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.TUE...E winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft.

Caribbean from 11N to 15N W of 72W

.TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT NIGHT...E winds 10 to 20 kt within 90 nm of coast of
Colombia, and E 10 to 15 kt elsewhere. 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 4 to 6 ft.
.MON...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 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

.TODAY...NE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 4 to 6 ft.
.TONIGHT...Variable winds less than 10 kt. Seas 3 to 5 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, becoming N less
than 10 kt after midnight. Seas 3 to 4 ft.
.MON...Variable winds less than 10 kt, becoming N less than
10 kt in the afternoon. Seas 3 to 4 ft.
.MON NIGHT...N winds less than 10 kt. Seas 3 to 4 ft.
.TUE...NW winds less than 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...N winds less than 10 kt. Seas 3 to 4 ft.

Caribbean between 64W and 72W

.TODAY...E winds 10 to 20 kt. Gulf of Venezuela, seas 2 ft or
less, building to 3 ft in the afternoon. Elsewhere, seas 5 to
7 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and
5 to 7 ft elsewhere.
.SAT NIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft
elsewhere.
.SUN...E winds 10 to 15 kt. Seas 5 to 6 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.MON...E winds 10 to 15 kt. Seas 5 to 6 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE 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 9 ft.
.TONIGHT...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.
.MON...E winds 10 to 20 kt. Seas 6 to 9 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft.
.TUE...E winds 10 to 15 kt. Seas 6 to 8 ft.
.TUE 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

.TODAY...E winds 10 to 20 kt. Seas 6 to 9 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 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.
.SUN...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.MON...E winds 10 to 20 kt. Seas 6 to 9 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.TUE...E winds 10 to 15 kt. Seas 6 to 9 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A weakening cold front located east of Bermuda is
slated to move through the central Atlantic today and Sat,
leading to fresh winds and rough seas north of 27N and east of
65W through tonight. Meanwhile, fresh to locally strong SW winds
and moderate seas will develop off NE Florida today ahead of a
cold front that will enter the area tonight. These winds and
seas will push east quickly Sat into Sat night. The front will
extend from near Bermuda to central Florida Sun morning and
dissipate Sun night. Looking ahead, a complex low pressure
system and strong cold front may move through the northwestern
tropical Atlantic by early next week, supporting widespread
fresh to strong winds and building seas ahead of and behind the
front.

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

.TODAY...SW winds 10 to 20 kt. Seas 4 to 6 ft.
.TONIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT...W winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN...E winds less than 10 kt, shifting to S in the afternoon.
Seas 4 to 6 ft.
.SUN NIGHT...W winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...NW winds 10 to 20 kt. Seas 4 to 5 ft.
.MON NIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft.
.TUE...NE winds 10 to 15 kt. Seas 7 to 10 ft.
.TUE NIGHT...E winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 7 to 9 ft.

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

.TODAY...W of 70W, SE winds less than 10 kt, shifting to SW in
the afternoon. Elsewhere, SE winds less than 10 kt. Seas 5 to
6 ft.
.TONIGHT...SW winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT...SW winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT NIGHT...W winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN...N winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 5 to 7 ft.
.SUN NIGHT...S winds 10 to 15 kt. Seas 5 to 6 ft.
.MON...SW winds 10 to 20 kt. Seas 5 to 7 ft.
.MON NIGHT...W winds 10 to 20 kt. Seas 6 to 9 ft.
.TUE...NE winds 10 to 20 kt. Seas 8 to 11 ft.
.TUE NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 8 to 11 ft.

Bahamas N of 22N

.TODAY...E winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 3 to 4 ft.
.TONIGHT...SE winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 3 to 4 ft.
.SAT...SE winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...SE winds less than 10 kt. Seas 2 ft or less.
.SUN...SE winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...S winds less than 10 kt. Seas 2 ft or less.
.MON...S winds less than 10 kt, shifting to SW in the afternoon.
Seas 3 ft in the morning, subsiding to 2 ft or less.
.MON NIGHT...NW winds less than 10 kt. Seas 2 ft or less.
.TUE...N winds 10 to 15 kt, shifting to NE in the afternoon.
Seas 2 ft or less, building to 3 ft in the afternoon.
.TUE NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft.

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

.TODAY...E winds less than 10 kt. Seas 5 to 6 ft.
.TONIGHT...SE winds less than 10 kt. Seas 5 to 6 ft.
.SAT...S winds less than 10 kt. Seas 4 to 6 ft.
.SAT NIGHT...S winds less than 10 kt. Seas 4 to 6 ft.
.SUN...S winds less than 10 kt. Seas 4 to 6 ft.
.SUN NIGHT...SE winds less than 10 kt, shifting to S after
midnight. Seas 4 to 5 ft.
.MON...S winds 10 to 15 kt. Seas 4 to 5 ft.
.MON NIGHT...SW winds 10 to 15 kt. Seas 4 to 5 ft.
.TUE...W winds less than 10 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 5 to 7 ft.

ATLC waters S of 22N W of 65W

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

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

.TODAY...E winds 10 to 15 kt. Seas 6 to 8 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft.
.SAT...E winds 10 to 15 kt. Seas 6 to 7 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft.
.SUN...E winds 10 to 15 kt. Seas 6 to 7 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft.
.MON...E winds 10 to 15 kt. Seas 6 to 8 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.