376
FZNT31 KNHC 061944
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
344 PM 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. The
area of low pressure located over the tropical central Atlantic
is gradually becoming better organized. Environmental conditions
appear generally conducive for slow development of this system,
and a tropical depression is likely to form within the next
couple of days while it moves quickly west-northwestward across
the central tropical Atlantic. This system is expected to be
near or north of the northern Leeward Islands on Thursday and
Friday, and interests there should monitor its progress.
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

.TONIGHT...E winds 10 to 20 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 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 in the evening,
subsiding to 2 ft or less.
.THU...E winds less than 10 kt. Seas 2 ft or less.
.THU NIGHT...SE winds less than 10 kt. Seas 2 ft or less.
.FRI...W winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...E winds less than 10 kt, shifting to S after
midnight. Seas 2 ft or less.
.SAT...W winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...NE winds less than 10 kt. Seas 3 ft.

Caribbean N of 15N between 72W and 85W

.TONIGHT...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 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...SE winds less than 10 kt. Seas 2 ft or less.
.THU NIGHT...SE 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.
.SAT...S winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...S 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, E 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 to 4 ft.
.TUE NIGHT...NE winds 10 to 15 kt within 90 nm of coast of
Colombia, and E less than 10 kt elsewhere. Seas 3 ft.
.WED...Within 90 nm of coast of Colombia, E winds 10 to 15 kt,
diminishing to less than 10 kt in the afternoon. Elsewhere, 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 3 ft in the evening,
subsiding to 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.
.SAT...S winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...S winds less than 10 kt. Seas 2 ft or less.

SW Caribbean S of 11N

.TONIGHT...Variable winds less than 10 kt, becoming NW less than
10 kt after midnight. Seas 2 ft or less, building to 3 ft after
midnight.
.TUE...NW winds less than 10 kt. Seas 3 ft.
.TUE NIGHT...Variable winds less than 10 kt. Seas 3 ft in the
evening, subsiding to 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.
.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.
.SAT...SW winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...SW winds less than 10 kt, increasing to 10 to 15 kt
after midnight. 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 ft Gulf of Venezuela, and 4 to 6 ft
elsewhere.
.TUE...E winds 10 to 15 kt Gulf of Venezuela, and E less than
10 kt elsewhere. 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 10 to 15 kt. Seas 3 to 5 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT 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

.TONIGHT...SE winds less than 10 kt, shifting to E after
midnight. 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 4 to 6 ft, building to
6 to 9 ft after midnight.
.THU...E winds 15 to 25 kt. Seas 7 to 10 ft.
.THU NIGHT...SE winds 15 to 25 kt. Seas 6 to 9 ft.
.FRI...SE winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 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.
.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 4 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.
.SAT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT 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. the area of
low pressure located over the tropical central Atlantic is
gradually becoming better organized. Environmental conditions
appear generally conducive for slow development of this system,
and a tropical depression is likely to form within the next
couple of days while it moves quickly west-northwestward across
the central tropical Atlantic. This system is expected to be near
or north of the northern Leeward Islands on Thursday and Friday,
and interests there should monitor its progress. 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

.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 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 20 kt. Seas 4 to 6 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 6 to 8 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft.
.SAT...N winds 10 to 20 kt. Seas 8 to 11 ft.
.SAT NIGHT...N winds 10 to 20 kt. Seas 8 to 13 ft.

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

.TONIGHT...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 5 to 7 ft.
.THU...E winds 10 to 15 kt. Seas 5 to 7 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 5 to 6 ft.
.FRI...E winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI NIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT...S winds 10 to 15 kt. Seas 7 to 10 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 7 to 10 ft.

Bahamas N of 22N

.TONIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 5 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 4 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 in the morning, becoming
variable winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...Variable winds less than 10 kt, becoming SW less
than 10 kt after midnight. Seas 3 to 4 ft.
.SAT...SW winds less than 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...SW 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 7 to 10 ft.
.TUE...E winds 10 to 15 kt. Seas 7 to 10 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 5 to 7 ft.
.THU...E winds 10 kt. Seas 4 to 6 ft.
.THU NIGHT...E winds 10 kt. Seas 4 to 6 ft.
.FRI...SE winds 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...SE winds 10 kt. Seas 5 to 7 ft.
.SAT...SW winds 10 kt. Seas 5 to 7 ft.
.SAT NIGHT...SW winds 10 kt. Seas 6 to 8 ft.

ATLC waters S of 22N W of 65W

.TONIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.TUE...E winds less than 10 kt. Seas 4 to 6 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...SE winds less than 10 kt. Seas 3 to 5 ft.
.THU...SE winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft.
.FRI...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...Variable winds less than 10 kt, becoming SE less
than 10 kt after midnight. Seas 3 to 5 ft.
.SAT...S winds less than 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...S winds less than 10 kt. Seas 3 to 5 ft.

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

.TONIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft.
.TUE...E 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...E winds 10 to 15 kt. Seas 5 to 6 ft, building to
6 to 9 ft after midnight.
.THU...E winds 10 to 20 kt. Seas 7 to 10 ft.
.THU NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft.
.FRI...SE winds 15 to 25 kt. Seas 8 to 11 ft.
.FRI NIGHT...S winds 15 to 25 kt. Seas 7 to 10 ft.
.SAT...SE winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft.