221
FZNT31 KNHC 020920
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
520 AM EDT Sat Aug 2 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...The pressure gradient between the Atlantic high
pressure and the Colombia low will continue to allow for fresh
to strong winds and rough seas over the south-central Caribbean
through Wed night. The strongest winds will occur off the coast
of Colombia, occasionally pulsing to near gale-force at night.
Moderate to fresh trades will prevail over the E Caribbean while
moderate or weaker winds are forecast for the NW Caribbean.
Otherwise, a tropical wave accompanied by scattered showers and
thunderstorms will continue to move across the eastern Caribbean
today, the central Caribbean tonight into Sun and across the SW
basin Sun night into Mon.

NW Caribbean W of 85W

.TODAY...E winds less than 10 kt. Seas 3 ft.
.TONIGHT...E winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.SUN...Variable winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.MON...E winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...E winds 10 to 20 kt. Seas 3 to 5 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.WED...E winds 10 to 20 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.

Caribbean N of 15N between 72W and 85W

.TODAY...E winds 10 to 20 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 to 5 ft.
.TONIGHT...S of 18N, NE winds 10 to 15 kt. Elsewhere, Variable
winds less than 10 kt, becoming NE less than 10 kt after
midnight. Seas 4 to 6 ft S of 18N, and 3 to 4 ft elsewhere.
.SUN...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 20 kt S of 18N, and E less than 10 kt
elsewhere. Seas 4 to 6 ft S of 18N, and 3 ft elsewhere.
.MON...E winds 10 to 20 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 20 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

Caribbean from 11N to 15N W of 72W

.TODAY...E winds 15 to 25 kt within 90 nm of coast of Colombia,
and NE 10 to 20 kt elsewhere. Seas 6 to 9 ft.
.TONIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.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 15 to 25 kt. Seas 6 to 8 ft.
.TUE...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.WED...E winds 10 to 20 kt. Seas 6 to 8 ft.
.WED NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.

SW Caribbean S of 11N

.TODAY...NE winds 10 to 15 kt. Seas 6 to 9 ft.
.TONIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft.
.SUN...NE winds less than 10 kt, shifting to E in the afternoon.
Seas 5 to 7 ft.
.SUN NIGHT...W winds less than 10 kt. Seas 3 to 5 ft.
.MON...SW winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...SW winds less than 10 kt. Seas 3 to 4 ft.
.TUE...Variable winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft.
.WED...Variable winds less than 10 kt, becoming W less than
10 kt in the afternoon. Seas 4 to 6 ft.
.WED NIGHT...N winds less than 10 kt. Seas 5 to 7 ft.

Caribbean between 64W and 72W

.TODAY...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of Venezuela,
and 4 to 6 ft elsewhere.
.TONIGHT...NE winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft.
.SUN...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela,
and 5 to 7 ft elsewhere.
.SUN NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. 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 20 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 20 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

.TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TONIGHT...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 10 to 15 kt. Seas 4 to 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 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...E winds 10 to 15 kt. Seas 3 to 5 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

.TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 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 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 3 to 5 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...E winds 10 to 15 kt. Seas 3 to 5 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...High pressure will dominate the weather pattern
through the period, supporting a gentle to moderate anticyclonic
flow and slight to moderate seas. The pressure gradient between
a tropical wave currently moving across the E Caribbean and the
Atlantic high pressure will support an area of fresh to locally
strong E to SE winds with moderate to rough seas that will move
north of the Leeward Islands and Puerto Rico through today and N
of Hispaniola tonight into Sun. Winds and seas will diminish Sun
as the high pressure weakens some.

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

.TODAY...SW winds 10 to 15 kt, shifting to W in the afternoon.
Seas 3 to 4 ft.
.TONIGHT...SW winds less than 10 kt. Seas 3 ft.
.SUN...SW winds less than 10 kt. Seas 3 to 5 ft.
.SUN NIGHT...Variable winds less than 10 kt, becoming S less
than 10 kt after midnight. Seas 3 to 5 ft.
.MON...SW winds less than 10 kt. Seas 4 to 5 ft.
.MON NIGHT...Variable winds less than 10 kt, becoming S less
than 10 kt after midnight. Seas 4 to 5 ft.
.TUE...S winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 4 to 5 ft.
.TUE NIGHT...Variable winds less than 10 kt. Seas 4 ft.
.WED...Variable winds less than 10 kt. Seas 3 to 4 ft.
.WED NIGHT...Variable winds less than 10 kt. Seas 3 ft.

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

.TODAY...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...SW winds 10 to 15 kt W of 70W, and S less than 10 kt
elsewhere. Seas 3 to 4 ft.
.SUN...SW winds 10 to 15 kt W of 70W, and S less than 10 kt
elsewhere. Seas 4 to 6 ft.
.SUN NIGHT...S winds less than 10 kt. Seas 4 to 6 ft.
.MON...SW winds less than 10 kt. Seas 4 to 6 ft.
.MON NIGHT...S winds less than 10 kt. Seas 4 to 5 ft.
.TUE...S winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 4 to 5 ft.
.TUE NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.WED...Variable winds less than 10 kt. Seas 3 to 4 ft.
.WED NIGHT...Variable winds less than 10 kt. Seas 3 ft.

Bahamas N of 22N

.TODAY...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft.
.TONIGHT...E winds less than 10 kt. Seas 3 ft.
.SUN...SE winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 ft.
.MON...SE winds less than 10 kt. Seas 3 ft.
.MON NIGHT...E winds less than 10 kt. Seas 3 ft.
.TUE...E winds less than 10 kt. Seas 3 ft.
.TUE NIGHT...E 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 in the evening,
subsiding to 2 ft or less.

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

.TODAY...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...W of 70W, E winds less than 10 kt, increasing to
10 to 15 kt after midnight. Elsewhere, SE winds 10 to 15 kt.
Seas 4 to 6 ft.
.SUN...SE winds less than 10 kt W of 70W, and SE 10 to 15 kt
elsewhere. Seas 4 to 6 ft.
.SUN NIGHT...W of 70W, SE winds less than 10 kt, increasing to
10 to 15 kt after midnight. Elsewhere, SE winds 10 to 15 kt.
Seas 3 to 5 ft.
.MON...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 5 ft.
.MON NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft.
.TUE...SE winds less than 10 kt. Seas 4 to 5 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.WED...E winds less than 10 kt. Seas 3 to 4 ft.
.WED NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.

ATLC waters S of 22N W of 65W

.TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...SE 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 3 to 5 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

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

.TODAY...SE winds 10 to 20 kt. Seas 6 to 7 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 kt. Seas 3 to 5 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds 10 kt. Seas 3 to 4 ft.
.WED...E winds 10 kt. Seas 4 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.