890
FZNT31 KNHC 051909
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
309 PM EDT Sun Oct 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...Rough seas in large N to NE swell over the tropical
Atlantic waters will gradually subside early this week.
Elsewhere, moderate trade winds will persist across the south-
central Caribbean. Moderate E to SE winds will pulse fresh to
locally strong in the northwestern Caribbean, including the Gulf
of Honduras, each night through the middle of the week. A broad
area of low pressure associated with a tropical wave continues
to produce a large area of disorganized showers and
thunderstorms several hundred miles southwest of the Cabo Verde
Islands. Environmental conditions appear conducive for
additional development of this system, and a tropical depression
is likely to form this week as it moves quickly across the
central tropical Atlantic, approaching portions of the Leeward
Islands by the latter part of this week. Regardless of
development, expect an increase in winds and seas with this
system the end of the week.

NW Caribbean W of 85W

.TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.TUE...SE 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 10 to 15 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.THU...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 2 ft or less.
.THU NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.FRI...SE winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...SE winds less than 10 kt. Seas 2 ft or less.

Caribbean N of 15N between 72W and 85W

.TONIGHT...E winds less than 10 kt. Seas 2 ft or less.
.MON...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 2 ft or less, building to 3 ft in the afternoon.
.MON NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.TUE...E winds less than 10 kt. Seas 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.
.THU...E winds less than 10 kt. Seas 2 ft or less.
.THU NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.FRI...SE winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...SE winds less than 10 kt. Seas 2 ft or less.

Caribbean from 11N to 15N W of 72W

.TONIGHT...Within 90 nm of coast of Colombia, NE winds 10 to
15 kt. Elsewhere, 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...Within 90 nm of coast of Colombia, NE winds 10 to
15 kt. Elsewhere, 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 ft.
.TUE NIGHT...NE winds less than 10 kt. Seas 3 ft.
.WED...E winds less than 10 kt. Seas 3 ft.
.WED NIGHT...E winds less than 10 kt. Seas 3 ft.
.THU...E winds less than 10 kt. Seas 3 ft.
.THU NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.FRI...SE winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...SE winds less than 10 kt. Seas 2 ft or less.

SW Caribbean S of 11N

.TONIGHT...Variable winds less than 10 kt, becoming N less than
10 kt after midnight. Seas 2 ft or less.
.MON...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...Variable winds less than 10 kt, becoming N less
than 10 kt after midnight. Seas 2 ft or less.
.TUE...W winds less than 10 kt. Seas 2 ft or less.
.TUE NIGHT...Variable winds less than 10 kt, becoming NW less
than 10 kt after midnight. Seas 2 ft or less.
.WED...Variable winds less than 10 kt, becoming SW less than
10 kt in the afternoon. Seas 2 ft or less.
.WED NIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.THU...Variable winds less than 10 kt. Seas 2 ft or less.
.THU NIGHT...Variable winds less than 10 kt, becoming SW less
than 10 kt after midnight. Seas 2 ft or less.
.FRI...SW winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...SW winds less than 10 kt. Seas 2 ft or less.

Caribbean between 64W and 72W

.TONIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and 4 to 6 ft
elsewhere.
.MON...Gulf of Venezuela, E winds 10 to 20 kt. Elsewhere, E
winds 10 to 15 kt, diminishing to less than 10 kt in the
afternoon. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 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. Seas 3 to 4 ft.
.WED NIGHT...E 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 4 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.

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

.TONIGHT...E winds 10 to 15 kt. 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...SE winds less than 10 kt. Seas 5 to 7 ft.
.TUE...SE 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 20 kt. Seas 5 to 7 ft.
.THU...E winds 15 to 25 kt. Seas 6 to 9 ft.
.THU NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.FRI...SE winds 15 to 25 kt. Seas 6 to 9 ft.
.FRI NIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft.

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

.TONIGHT...E winds less than 10 kt. Seas 5 to 7 ft.
.MON...SE 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 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.
.THU...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Rough seas in large N to NE swell across the area
waters will slowly subside from north to south over the central
Atlantic early this week. Fresh to strong NE to E winds will
prevail north of a stationary front, extending from the central
Atlantic near 27N55W through the central Bahamas and Florida
Straits, through late Tue before winds slowly diminish midweek. A
broad area of low pressure associated with a tropical wave
continues to produce a large area of disorganized showers and
thunderstorms several hundred miles southwest of the Cabo Verde
Islands. Environmental conditions appear conducive for additional
development of this system, and a tropical depression is likely
to form this week as it moves quickly across the central tropical
Atlantic, approaching portions of the Leeward Islands by the
latter part of this week. Regardless of development, expect an
increase in winds and seas over the SE waters with this system
the end of the week.

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

.TONIGHT...E winds 15 to 25 kt. Seas 10 to 11 ft.
.MON...E winds 15 to 20 kt. Seas 9 to 11 ft.
.MON NIGHT...E winds 15 to 20 kt. Seas 9 to 11 ft.
.TUE...E winds 15 to 20 kt. Seas 7 to 10 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 7 to 9 ft.
.WED...E winds 10 to 15 kt. Seas 6 to 8 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.THU...E winds 10 to 15 kt. Seas 5 to 6 ft.
.THU NIGHT...E winds 15 to 20 kt. Seas 5 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft.

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

.TONIGHT...E winds 15 to 20 kt. Seas 8 to 12 ft.
.MON...E winds 15 to 20 kt. Seas 8 to 11 ft.
.MON NIGHT...E winds 15 to 20 kt. Seas 7 to 10 ft.
.TUE...E winds 15 to 20 kt. Seas 7 to 10 ft.
.TUE NIGHT...E winds 15 to 20 kt. Seas 7 to 9 ft.
.WED...E winds 10 to 15 kt. Seas 6 to 8 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft.
.THU...E winds 10 to 15 kt. Seas 5 to 6 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.

Bahamas N of 22N

.TONIGHT...SE winds less than 10 kt. Seas 3 to 5 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 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...E winds less than 10 kt. Seas 3 ft.
.THU...E winds less than 10 kt. Seas 3 to 4 ft.
.THU NIGHT...E winds less than 10 kt. Seas 3 ft.
.FRI...SE winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...SE winds less than 10 kt. Seas 3 ft.

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

.TONIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft.
.MON...E winds 10 to 20 kt. Seas 7 to 10 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft.
.TUE...E winds 10 to 20 kt. Seas 6 to 9 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft.
.WED...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.THU...E winds 10 kt. Seas 4 to 6 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI...E winds 10 kt. Seas 4 to 5 ft.
.FRI NIGHT...SE winds 10 kt. Seas 5 to 7 ft.

ATLC waters S of 22N W of 65W

.TONIGHT...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, increasing to 10 to 15 kt
after midnight. Seas 4 to 6 ft.
.TUE...E winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...E winds 10 to 15 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.
.THU...SE winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.FRI...E winds less than 10 kt. Seas 3 to 5 ft.
.FRI NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft.

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

.TONIGHT...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 6 to 8 ft.
.TUE...SE winds 10 to 15 kt. Seas 6 to 7 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.WED...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.WED NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.THU...SE winds 10 to 20 kt. Seas 7 to 10 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft.
.FRI...SE winds 10 to 20 kt. Seas 7 to 10 ft.
.FRI NIGHT...SE winds 15 to 25 kt. Seas 7 to 10 ft.