626
FZNT31 KNHC 032035
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
435 PM EDT Fri Oct 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...Gentle to moderate trade winds will prevail over
much of the Caribbean Sea into next week. A long-period N to NE
swell, generated by previous Tropical Cyclones Imelda and
Humberto, will lead to rough seas in the Atlantic Passages and
over the waters east of the Lesser Antilles today into early next
week, with moderate seas expanding over the eastern Caribbean
tonight. Seas will slowly subside early next week. Looking ahead,
moderate to occasionally fresh E to SE winds will pulse in the
Gulf of Honduras Sat night into early next week.

NW Caribbean W of 85W

.TONIGHT...E winds less than 10 kt. Seas 2 ft or less, building
to 3 ft after midnight.
.SAT...Variable 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, building to 3 ft after
midnight.
.SUN...SE winds less than 10 kt. Seas 3 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 15 kt. Seas 3 to 4 ft.
.WED...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft.
.WED NIGHT...E winds less than 10 kt. Seas 3 ft.

Caribbean N of 15N between 72W and 85W

.TONIGHT...E winds less than 10 kt. Seas 2 ft or less.
.SAT...SE winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...SE winds less than 10 kt. Seas 2 ft or less.
.SUN...E winds 10 to 15 kt S of 18N, and SE less than 10 kt
elsewhere. Seas 2 ft or less.
.SUN 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.
.MON...E winds 10 to 15 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.TUE...E winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less.
.TUE NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.WED...E winds less than 10 kt. Seas 2 ft or less.
.WED NIGHT...E winds less than 10 kt. Seas 2 ft or less.

Caribbean from 11N to 15N W of 72W

.TONIGHT...E winds 10 to 15 kt within 90 nm of coast of
Colombia, and E less than 10 kt elsewhere. Seas 3 to 4 ft.
.SAT...Within 90 nm of coast of Colombia, SE winds 10 to 15 kt,
diminishing to less than 10 kt in the afternoon. Elsewhere, SE
winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...Within 90 nm of coast of Colombia, NE winds less
than 10 kt, shifting to E after midnight. Elsewhere, E winds
less than 10 kt. Seas 3 ft.
.SUN...SE winds 10 to 15 kt. Seas 3 ft.
.SUN NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.MON...E winds 10 to 15 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.WED...E winds less than 10 kt. Seas 3 ft.
.WED NIGHT...E winds less than 10 kt. Seas 3 ft.

SW Caribbean S of 11N

.TONIGHT...Variable winds less than 10 kt. Seas 3 ft.
.SAT...Variable winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less.
.SAT NIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.SUN...Variable winds less than 10 kt, becoming S less than
10 kt in the afternoon. Seas 2 ft or less.
.SUN NIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.MON...Variable winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...N winds less than 10 kt. Seas 2 ft or less.
.TUE...Variable winds less than 10 kt. Seas 2 ft or less.
.TUE NIGHT...Variable 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.

Caribbean between 64W and 72W

.TONIGHT...E winds 10 to 15 kt. Gulf of Venezuela, seas 3 ft in
the evening, subsiding to 2 ft or less. Elsewhere, seas 3 to 5
ft.
.SAT...Gulf of Venezuela, E winds 10 to 15 kt, shifting to S in
the afternoon. Elsewhere, E winds less than 10 kt. Seas 2 ft or
less Gulf of Venezuela, and 3 to 5 ft elsewhere.
.SAT NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less Gulf of Venezuela, and 3 to
5 ft elsewhere.
.SUN...Gulf of Venezuela, E winds 10 to 15 kt, diminishing to
less than 10 kt in the afternoon. Elsewhere, E winds 10 to
15 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft
elsewhere.
.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 4 to 6 ft.
.TUE...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

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

.TONIGHT...E winds less than 10 kt. Seas 6 to 10 ft.
.SAT...E winds less than 10 kt. Seas 6 to 10 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 10 ft.
.SUN...E winds less than 10 kt. Seas 6 to 10 ft.
.SUN NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 6 to 9 ft.
.MON...E winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 6 to 9 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft.
.TUE...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.

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

.TONIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.SAT...SE winds less than 10 kt. Seas 5 to 8 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 5 to 8 ft.
.SUN...SE winds less than 10 kt. Seas 5 to 8 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 5 to 8 ft.
.MON...E winds less than 10 kt. Seas 5 to 8 ft.
.MON NIGHT...E winds less than 10 kt. Seas 5 to 7 ft.
.TUE...E winds less than 10 kt. Seas 5 to 7 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Fresh to strong NE winds will occur off the coast of
Florida and over the northern Bahamas, generally north of 25N
and west of 70W, today into early next week as a weak area of low
pressure meanders near the Bahamas and Florida over the next
several days. There is a low chance of tropical development with
this system over the next 48 hours. Farther east, strong winds
are expected east of a cold front in the central Atlantic into
early Sat, with fresh N to NE winds occurring in the wake of the
front. The front will lift northward and weaken this weekend.
Large N swell generated by previous Tropical Cyclones Imelda and
Humberto will continue to expand southeastward this weekend,
leading to widespread rough seas north of 10N. Very rough seas in
excess of 12 ft are expected north of 23N this weekend,
including near the northern Bahamas. Looking ahead, a tropical
wave has just emerged off the coast of Africa. The wave is
forecast to interact with another disturbance over the eastern
tropical Atlantic, and then move westward after that.
Environmental conditions are expected to become conducive for
some slow development of the system in a few days, and a tropical
depression could form near or east of the Lesser Antilles by the
end of next week. There is a medium chance of tropical
development within the next 7 days.

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

.TONIGHT...E winds 15 to 20 kt. Seas 11 to 12 ft.
.SAT...E winds 15 to 25 kt. Seas 11 to 12 ft.
.SAT NIGHT...E winds 15 to 25 kt. Seas 10 to 12 ft.
.SUN...E winds 15 to 25 kt. Seas 10 to 12 ft.
.SUN NIGHT...E winds 15 to 25 kt. Seas 9 to 12 ft.
.MON...E winds 15 to 25 kt. Seas 8 to 12 ft.
.MON NIGHT...E winds 15 to 25 kt. Seas 8 to 12 ft.
.TUE...E winds 15 to 25 kt. Seas 8 to 11 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 7 to 9 ft.
.WED...NE winds 10 to 20 kt. Seas 7 to 9 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 7 to 8 ft.

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

.TONIGHT...E winds 15 to 20 kt. Seas 12 to 13 ft.
.SAT...E winds 10 to 20 kt. Seas 11 to 12 ft.
.SAT NIGHT...E winds 15 to 20 kt. Seas 10 to 12 ft.
.SUN...E winds 15 to 20 kt. Seas 9 to 12 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 9 to 11 ft.
.MON...E winds 15 to 25 kt. Seas 8 to 11 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft.
.TUE...E winds 15 to 20 kt. Seas 8 to 10 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft.
.WED...E winds 10 to 20 kt. Seas 7 to 9 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft.

Bahamas N of 22N

.TONIGHT...E winds 15 to 25 kt. Seas 7 to 11 ft.
.SAT...SE winds 10 to 20 kt. Seas 6 to 10 ft.
.SAT NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 6 to 9 ft.
.SUN...SE winds less than 10 kt. Seas 6 to 9 ft.
.SUN NIGHT...SE winds less than 10 kt. Seas 5 to 8 ft.
.MON...Variable winds less than 10 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds less than 10 kt. Seas 5 to 7 ft.
.TUE...NE winds less than 10 kt. Seas 5 to 7 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.

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

.TONIGHT...E winds 10 to 20 kt. Seas 10 to 13 ft.
.SAT...E winds 10 to 20 kt. Seas 9 to 12 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 9 to 12 ft.
.SUN...E winds 10 to 20 kt. Seas 9 to 11 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft.
.MON...E winds 10 to 20 kt. Seas 8 to 10 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft.
.TUE...E winds 10 to 15 kt. Seas 6 to 9 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft.
.WED...SE winds 10 kt. Seas 6 to 8 ft.
.WED NIGHT...E winds 10 kt. Seas 5 to 6 ft.

ATLC waters S of 22N W of 65W

.TONIGHT...Variable winds less than 10 kt. Seas 6 to 10 ft.
.SAT...Variable winds less than 10 kt. Seas 6 to 10 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 6 to 10 ft.
.SUN...E winds less than 10 kt. Seas 6 to 8 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 5 to 7 ft.
.MON...E winds less than 10 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds less than 10 kt. Seas 5 to 7 ft.
.TUE...E winds less than 10 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.WED...SE winds less than 10 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.

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

.TONIGHT...E winds less than 10 kt. Seas 8 to 11 ft.
.SAT...E winds less than 10 kt. Seas 9 to 11 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 10 to 11 ft.
.SUN...E winds 10 to 15 kt. Seas 9 to 11 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 9 to 10 ft.
.MON...E winds 10 to 15 kt. Seas 8 to 9 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft.
.TUE...SE winds 10 to 15 kt. Seas 6 to 7 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft.