Offshore Forecast
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662
FZNT31 KNHC 050836
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
436 AM 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...Large N to NE swell will continue to produce rough
seas over the waters E of the Lesser Antilles and through the
Atlantic Passages through Sun night before seas gradually
subside early next week. Elsewhere, moderate trade winds will
persist across the south-central basin, and moderate E to SE
winds will pulse fresh to strong in the northwestern Caribbean,
including the Gulf of Honduras, each night through the middle of
the upcoming week. Looking ahead, a broad area of low pressure
associated with a tropical wave has formed several hundred miles
south of the Cabo Verde Islands. Environmental conditions appear
conducive for gradual development of this system, and it could
become a tropical depression by the middle to latter part of
next week while moving across the central tropical Atlantic and
approaching portions of the Leeward Islands by Thu.

NW Caribbean W of 85W

.TODAY...SE winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 to 4 ft.
.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 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 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 ft.

Caribbean N of 15N between 72W and 85W

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

Caribbean from 11N to 15N W of 72W

.TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft.
.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 to 4 ft.
.TUE NIGHT...E winds less than 10 kt, shifting to NE after
midnight. Seas 3 to 4 ft.
.WED...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.

SW Caribbean S of 11N

.TODAY...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 3 ft.
.TONIGHT...NW winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 ft.
.MON...Variable winds less than 10 kt. Seas 3 ft.
.MON NIGHT...N 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, becoming SW less than
10 kt 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...SW winds less than 10 kt. Seas 3 ft.
.THU NIGHT...SW winds less than 10 kt. Seas 3 ft.

Caribbean between 64W and 72W

.TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft Gulf of Venezuela,
and 4 to 6 ft elsewhere.
.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...E winds 10 to 15 kt. Seas 3 to 5 ft Gulf of Venezuela,
and 4 to 6 ft elsewhere.
.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. 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 5 ft.

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

.TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 7 to 10 ft.
.TONIGHT...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...SE winds less than 10 kt. Seas 5 to 7 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 15 kt. Seas 6 to 9 ft.
.THU...E winds 10 to 20 kt. Seas 8 to 11 ft.
.THU NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft.

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

.TODAY...SE winds less than 10 kt. Seas 6 to 8 ft.
.TONIGHT...E winds less than 10 kt. Seas 6 to 8 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 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 9 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Large N to NE swell will continue to produce rough
seas across the Atlantic waters from 40W to coastal Florida and
the Bahamas, generally north of 12N, through Sun night. Seas in
excess of 12 ft are expected north of 20N through midday Sun.
Seas will slowly subside from north to south over the central
Atlantic early next week. Fresh to strong NE to E winds will
prevail north of a stationary front, extending from the central
Atlantic near 26N55W through the central Bahamas and Florida
Straits, through late Tue before winds slowly diminish midweek.
Looking ahead, a broad area of low pressure associated with a
tropical wave has formed several hundred miles south of the Cabo
Verde Islands. Environmental conditions appear conducive for
gradual development of this system, and it could become a
tropical depression by the middle to latter part of next week
while moving across the central tropical Atlantic and
approaching portions of the Leeward Islands by Thu.

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

.TODAY...E winds 15 to 25 kt. Seas 10 to 12 ft.
.TONIGHT...E winds 15 to 25 kt. Seas 10 to 12 ft.
.MON...E winds 15 to 25 kt. Seas 10 to 12 ft.
.MON NIGHT...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 10 ft.
.WED...E winds 10 to 20 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 15 kt. Seas 5 to 7 ft.

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

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

Bahamas N of 22N

.TODAY...SE winds less than 10 kt. Seas 4 to 6 ft.
.TONIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.MON...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.TUE...E winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 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 to 4 ft.
.THU NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.

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

.TODAY...E winds 10 to 20 kt. Seas 9 to 12 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 9 to 11 ft.
.MON...E winds 10 to 20 kt. Seas 8 to 10 ft.
.MON NIGHT...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 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 kt. Seas 5 to 6 ft.
.THU NIGHT...E winds 10 kt. Seas 5 to 6 ft.

ATLC waters S of 22N W of 65W

.TODAY...Variable winds less than 10 kt, becoming E less than
10 kt in the afternoon. Seas 6 to 8 ft.
.TONIGHT...E winds less than 10 kt. Seas 6 to 8 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 4 to 6 ft.
.WED...E winds less than 10 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.THU...E winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.

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

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