301
FZNT31 KNHC 101511
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1111 AM EDT Sun Aug 10 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...High pressure north of basin combined with low
pressure over Colombia will support fresh to locally strong
winds and moderate to rough seas over the waters just offshore
Venezuela and Colombia into mid week, mainly at night. Winds are
likely to increase slightly starting Wed as the pressure
gradient increases and a tropical wave passes the region. In the
Gulf of Honduras, moderate to fresh winds will pulse mainly at
night into Thu.

NW Caribbean W of 85W

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.MON...SE winds 10 to 20 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.TUE...E winds 10 to 20 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. 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.

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft S of 18N,
and 2 ft or less elsewhere.
.TONIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 4 to 6 ft S of 18N, and 2 ft or less elsewhere.
.MON...E winds 10 to 15 kt. S of 18N, seas 4 to 6 ft. Elsewhere,
seas 3 ft in the morning, subsiding to 2 ft or less.
.MON NIGHT...E winds 10 to 20 kt S of 18N, and E less than 10 kt
elsewhere. Seas 5 to 7 ft S of 18N, and 2 ft or less elsewhere.
.TUE...E 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. Seas 3 to 5 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...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 within 90 nm of coast of
Colombia, and E 10 to 20 kt elsewhere. 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 5 to 7 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.THU...E winds 10 to 20 kt. Seas 5 to 7 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.

SW Caribbean S of 11N

.THIS AFTERNOON...S winds less than 10 kt. Seas 3 to 5 ft.
.TONIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft.
.MON...Variable winds less than 10 kt. Seas 3 to 5 ft.
.MON NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.TUE...Variable winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...N winds less than 10 kt. Seas 3 to 5 ft.
.WED...N winds less than 10 kt. Seas 4 to 6 ft.
.WED NIGHT...N winds less than 10 kt. Seas 4 to 6 ft.
.THU...SW winds less than 10 kt. Seas 4 to 6 ft.
.THU NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft.

Caribbean between 64W and 72W

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 ft Gulf of
Venezuela, and 4 to 6 ft elsewhere.
.TONIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of
Venezuela, and 4 to 6 ft elsewhere.
.MON...E winds 10 to 20 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. 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 4 to 6 ft.
.WED...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

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

.THIS AFTERNOON...E winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE NIGHT...NE 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...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft.
.WED NIGHT...E winds less than 10 kt. Seas 4 to 6 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.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS....A trough of low pressure over Florida will bring
scattered thunderstorms to nearby waters into Mon. Looking
ahead,
a tropical wave in the eastern Atlantic is expected to move WNW
this week and may approach portions of area waters NE of the
Leeward Islands during the middle to latter portions of the
week.
 Low pressure is expected to form in association with this
tropical wave, and a tropical depression may form by mid to late
week. Regardless of tropical formation, increasing winds and
seas from this system are likely to enter area waters by late
Wed.

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

.THIS AFTERNOON...SE winds 10 kt. Seas 3 to 5 ft.
.TONIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.MON NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.TUE...SE winds 10 kt in the morning, becoming variable winds
less than 10 kt. 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...S 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.

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

.THIS AFTERNOON...SE winds 10 to 15 kt W of 70W, and E less than
10 kt elsewhere. Seas 3 to 4 ft.
.TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.MON...SE winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.TUE...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 3 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.
.THU...Variable winds less than 10 kt. Seas 3 ft.
.THU NIGHT...Variable winds less than 10 kt. Seas 3 ft.

Bahamas N of 22N

.THIS AFTERNOON...SE winds less than 10 kt. Seas 3 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 ft.
.MON...SE winds 10 to 15 kt. Seas 3 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.TUE...SE winds 10 to 15 kt. Seas 3 ft.
.TUE NIGHT...SE 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.

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

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 5 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.MON...E winds 10 to 15 kt. Seas 4 ft.
.MON NIGHT...E winds 10 kt. Seas 3 to 4 ft.
.TUE...SE winds 10 kt. Seas 3 to 4 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.
.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 S of 22N W of 65W

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 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 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 10 to 15 kt. Seas 3 to 4 ft.
.THU...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

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

.THIS AFTERNOON...E winds 10 kt. Seas 4 to 5 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 5 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 less than 10 kt. Seas 4 to 5 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...E winds 10 to 15 kt. Seas 5 to 7 ft.
.THU NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft.