809
FZNT31 KNHC 180208
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1008 PM EDT Fri Oct 17 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...Light to gentle, with locally moderate, winds and
slight seas are expected over the Caribbean through Sat.
Moderate to locally fresh trade winds and moderate seas will
develop over the central and eastern Caribbean this weekend as
high pressure builds N of the area. Fresh to strong winds and
rough seas will accompany a tropical wave as it moves across the
tropical Atlantic waters this weekend. The wave will move into
the eastern Caribbean Sun night. Gradual development of this
system is possible, and there is a low chance of tropical
development within the next 7 days. Regardless of development,
this system is expected to bring building seas, heavy rainfall
and gusty winds over the tropical Atlantic waters this weekend
and across the Caribbean Sea much of next week.

NW Caribbean W of 85W

.OVERNIGHT...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,
building to 3 ft after midnight.
.SUN...E winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less.
.SUN NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.MON...NE winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...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 less than 10 kt. Seas 2 ft or less.
.WED...NE winds less than 10 kt. Seas 2 ft or less.
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.

Caribbean N of 15N between 72W and 85W

.OVERNIGHT...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.
.SUN...E winds 10 to 15 kt S of 18N, and SE less than 10 kt
elsewhere. Seas 3 ft.
.SUN NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. 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 4 to 6 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.

Caribbean from 11N to 15N W of 72W

.OVERNIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.SAT...Within 90 nm of coast of Colombia, E winds 10 kt.
Elsewhere, Variable winds less than 10 kt, becoming E less than
10 kt in the afternoon. Seas 2 ft or less.
.SAT NIGHT...Within 90 nm of coast of Colombia, E winds 10 to
15 kt. Elsewhere, 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...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.MON...E winds 10 to 20 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. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...E winds less than 10 kt. Seas 3 to 5 ft.
.WED NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft.

SW Caribbean S of 11N

.OVERNIGHT...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, becoming E less
than 10 kt after midnight. Seas 2 ft or less.
.SUN...Variable winds less than 10 kt. 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, becoming W less than
10 kt in the afternoon. Seas 3 ft.
.MON NIGHT...W winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 ft.
.TUE...Variable winds less than 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...Variable winds less than 10 kt, becoming SW less
than 10 kt after midnight. Seas 3 ft.
.WED...W winds less than 10 kt. Seas 3 ft.
.WED NIGHT...W winds less than 10 kt. Seas 3 ft.

Caribbean between 64W and 72W

.OVERNIGHT...Gulf of Venezuela, Variable winds less than 10 kt.
Elsewhere, 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
4 ft elsewhere.
.SAT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela,
and 3 to 4 ft elsewhere.
.SAT NIGHT...E winds 10 to 20 kt. Gulf of Venezuela, seas 2 ft
or less, building to 3 ft after midnight. Elsewhere, seas 3 to
5 ft.
.SUN...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela,
and 4 to 6 ft elsewhere.
.SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 20 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 15 kt. Seas 4 to 6 ft.

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

.OVERNIGHT...SE winds less than 10 kt. Seas 4 to 6 ft.
.SAT...E winds less than 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft.
.MON...E winds 10 to 20 kt. Seas 8 to 11 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 8 ft.
.WED...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED 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

.OVERNIGHT...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 5 to 7 ft.
.SUN...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft.
.MON...E winds 10 to 15 kt. Seas 6 to 9 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 5 to 7 ft.
.WED...E winds 10 to 15 kt. Seas 5 to 7 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...A cold front extends from 29N55W to 24N70W, then
becomes stationary to the central Bahamas. The front will
propagate southeastward and stall along 22N this weekend. Fresh
to strong winds are N of 22N and E of the front and N of 27N W of
the front to 70W. Winds will diminish from west to east through
late Sat into Sun. Widespread rough seas prevail north of 20N and
east of 60W, and N of 26N between 60W and 75W. Very rough seas
over 12 ft can be expected north of 25N and east of 71W through
Sun. The rough seas will spread SE to cover much of the waters E
of 75W by early Sun, then will slowly subside from west to east
Sun into next week. High pressure will build in the wake of the
front with improving conditions early next week.

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

.OVERNIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft.
.SAT...NE winds 10 kt in the morning, becoming variable winds
less than 10 kt. Seas 6 to 7 ft.
.SAT NIGHT...SE winds less than 10 kt. Seas 6 to 8 ft.
.SUN...S winds 10 to 15 kt. Seas 6 to 8 ft.
.SUN NIGHT...S winds 10 to 15 kt. Seas 6 to 7 ft.
.MON...W winds 10 to 15 kt, shifting to N in the afternoon. Seas
5 to 6 ft.
.MON NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.TUE...Variable winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...S winds less than 10 kt, shifting to SW after
midnight. Seas 3 to 4 ft.
.WED...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...N winds 10 kt. Seas 3 to 5 ft.

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

.OVERNIGHT...N winds 10 to 20 kt W of 70W, and NW 15 to 25 kt
elsewhere. Seas 8 to 12 ft W of 70W, and 11 to 15 ft elsewhere.
.SAT...N winds 10 to 15 kt. Seas 8 to 12 ft W of 70W, and 11 to
16 ft elsewhere.
.SAT NIGHT...E winds less than 10 kt W of 70W, and N 10 to 15 kt
elsewhere. Seas 8 to 12 ft W of 70W, and 11 to 14 ft elsewhere.
.SUN...Variable winds less than 10 kt, becoming E less than
10 kt in the afternoon. Seas 8 to 11 ft.
.SUN NIGHT...Variable winds less than 10 kt, becoming SE less
than 10 kt after midnight. Seas 6 to 9 ft.
.MON...S winds less than 10 kt. Seas 5 to 7 ft.
.MON NIGHT...Variable winds less than 10 kt, becoming SE less
than 10 kt after midnight. Seas 4 to 6 ft.
.TUE...SE winds less than 10 kt. Seas 4 to 5 ft.
.TUE NIGHT...SE winds 10 kt. Seas 4 to 5 ft.
.WED...S winds less than 10 kt. Seas 4 to 6 ft.
.WED NIGHT...SW winds less than 10 kt, shifting to NW after
midnight. Seas 4 to 6 ft.

Bahamas N of 22N

.OVERNIGHT...NE 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 less than 10 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 5 ft.
.WED...NE winds less than 10 kt. Seas 3 to 4 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 ft.

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

.OVERNIGHT...N winds 10 to 15 kt. Seas 7 to 10 ft.
.SAT...N winds 10 to 15 kt. Seas 7 to 10 ft.
.SAT NIGHT...NE winds less than 10 kt. Seas 8 to 11 ft.
.SUN...E winds less than 10 kt. Seas 8 to 10 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 7 to 9 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...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...E winds 10 kt. Seas 4 to 6 ft.
.WED...E winds 10 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.

ATLC waters S of 22N W of 65W

.OVERNIGHT...N winds less than 10 kt. Seas 3 to 5 ft.
.SAT...E winds less than 10 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 5 to 7 ft.
.SUN...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 5 to 7 ft.
.SUN NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 5 to 7 ft.
.MON...E winds 10 to 15 kt. Seas 5 to 7 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.
.WED...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

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

.OVERNIGHT...SW winds 10 to 15 kt. Seas 6 to 8 ft.
.SAT...SW winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 5 to 7 ft.
.SAT NIGHT...SE winds less than 10 kt. Seas 5 to 7 ft.
.SUN...E winds less than 10 kt. Seas 6 to 9 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 8 to 10 ft.
.MON...E winds 10 to 15 kt. Seas 8 to 10 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 7 to 9 ft.
.TUE...E winds 10 to 15 kt. Seas 7 to 8 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft.
.WED...E winds 10 to 15 kt. Seas 6 to 7 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft.