587
FZNT31 KNHC 061314
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
914 AM EDT Mon Oct 6 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 and through the Caribbean Passages will
gradually subside through Tue. 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. Showers and thunderstorms will remain
active across the northwestern Caribbean through Tue night. A
broad area of low pressure associated with a low-latitude
tropical wave continues to produce a large area of disorganized
showers and thunderstorms over the tropical central Atlantic.
Environmental conditions appear generally conducive for gradual
development of this system, and a tropical depression is likely
to form within the next few days while it moves quickly west-
northwestward across the central tropical Atlantic, approaching
the northern Leeward Islands by the latter part of the week.
Regardless of development, expect an increase in winds and seas
across the tropical Atlantic waters with this system by the end
of the week.

NW Caribbean W of 85W

.THIS AFTERNOON...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 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 less than 10 kt. Seas 3 ft.
.THU...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 3 ft.
.THU NIGHT...Variable winds less than 10 kt. Seas 3 ft in the
evening, subsiding to 2 ft or less.
.FRI...Variable winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...Variable winds less than 10 kt. Seas 2 ft or less.

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds 10 to 15 kt S of 18N, and E less than
10 kt elsewhere. Seas 3 to 4 ft.
.TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.TUE...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 to 4 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 3 ft.
.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...SE 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 in the evening, becoming
variable winds less than 10 kt. Seas 2 ft or less.

Caribbean from 11N to 15N W of 72W

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

SW Caribbean S of 11N

.THIS AFTERNOON...S winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.TUE...N winds less than 10 kt, shifting to SW in the afternoon.
Seas 3 ft.
.TUE NIGHT...Variable winds less than 10 kt. Seas 3 ft.
.WED...Variable winds less than 10 kt. Seas 3 ft.
.WED NIGHT...Variable winds less than 10 kt. Seas 3 ft.
.THU...Variable winds less than 10 kt. Seas 2 ft or less.
.THU NIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.FRI...Variable winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...SW winds less than 10 kt. Seas 2 ft or less,
building to 3 ft after midnight.

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 5 ft Gulf of
Venezuela, and 4 to 6 ft elsewhere.
.TONIGHT...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. 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 5 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

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

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 7 to 10 ft.
.TONIGHT...SE winds less than 10 kt. Seas 6 to 9 ft.
.TUE...SE winds 10 to 15 kt. Seas 5 to 7 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 8 to 11 ft.
.THU NIGHT...SE winds 15 to 25 kt. Seas 8 to 11 ft.
.FRI...SE winds 10 to 20 kt. Seas 8 to 11 ft.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 7 to 10 ft.

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

.THIS AFTERNOON...SE winds less than 10 kt. Seas 6 to 8 ft.
.TONIGHT...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 5 to 7 ft.
.THU...SE winds 10 to 15 kt. Seas 6 to 9 ft.
.THU NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 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
regional waters will gradually subside from north to south over
the central Atlantic through Tue night. Fresh to strong NE to E
winds will prevail north of a stationary front, extending from
the central Atlantic near 28N55W through the NW Bahamas and to
the SE Florida coast, through late Tue. Winds will diminish
midweek as the front drifts northward and dissipates. A broad
area of low pressure associated with a low-latitude tropical wave
continues to produce a large area of disorganized showers and
thunderstorms over the tropical central Atlantic. Environmental
conditions appear generally conducive for gradual development of
this system, and a tropical depression is likely to form within
the next few days while it moves quickly west-northwestward
across the central tropical Atlantic, approaching the northern
Leeward Islands by the latter part of the week. Regardless of
development, expect an increase in winds and seas over the SE
waters with this system by the end of the week.

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

.THIS AFTERNOON...E winds 15 to 20 kt. Seas 10 to 12 ft.
.TONIGHT...E winds 15 to 20 kt. Seas 9 to 11 ft.
.TUE...E winds 15 to 20 kt. Seas 8 to 10 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 6 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 10 to 20 kt. Seas 6 to 8 ft.
.FRI...E winds 10 to 15 kt. Seas 6 to 9 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft.

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

.THIS AFTERNOON...E winds 15 to 20 kt. Seas 8 to 12 ft.
.TONIGHT...E winds 15 to 20 kt. Seas 8 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 10 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 6 to 8 ft.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 6 to 9 ft.

Bahamas N of 22N

.THIS AFTERNOON...Variable winds less than 10 kt. Seas 4 to
6 ft.
.TONIGHT...NE winds less than 10 kt, shifting to E after
midnight. Seas 4 to 6 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.
.THU...E winds less than 10 kt. Seas 3 to 4 ft.
.THU NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.FRI...S winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...S winds less than 10 kt. Seas 3 to 4 ft.

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

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

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...E winds less than 10 kt. Seas 5 to 7 ft.
.TONIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. 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 less than 10 kt. Seas 4 to 6 ft.
.WED NIGHT...SE winds less than 10 kt. Seas 4 to 6 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...SE winds less than 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...SE winds less than 10 kt. Seas 5 to 7 ft.

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 8 to 10 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 7 to 9 ft.
.TUE...SE winds 10 to 15 kt. Seas 6 to 8 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 6 to 7 ft.
.WED...SE winds 10 to 15 kt. Seas 6 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.THU...E winds 10 to 20 kt. Seas 7 to 10 ft.
.THU NIGHT...E winds 15 to 25 kt. Seas 8 to 13 ft.
.FRI...E winds 15 to 25 kt. Seas 10 to 15 ft.
.FRI NIGHT...SE winds 15 to 25 kt. Seas 9 to 14 ft.