021
FZNT31 KNHC 040235
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1035 PM EDT Wed Sep 3 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 subtropical ridge over the central Atlantic
combined with lower pressures in northern Colombia will support
moderate to fresh easterly trade winds along with moderate seas
across much of the central Caribbean through Sat. Fresh to
locally strong winds are expected to pulse at night off Colombia
and the Gulf of Venezuela through Fri night. In addition,
moderate to locally fresh E winds and slight to moderate seas
will prevail in the Gulf of Honduras through Sat night.

NW Caribbean W of 85W

.OVERNIGHT...SE winds 10 to 15 kt. Seas 2 ft or less, building
to 3 ft after midnight.
.THU...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft.
.THU NIGHT...SE winds 10 to 15 kt. Seas 3 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 ft.
.MON...E winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less.
.MON NIGHT...E winds less than 10 kt. Seas 2 ft or less.

Caribbean N of 15N between 72W and 85W

.OVERNIGHT...E winds 10 to 15 kt S of 18N, and SE less than
10 kt elsewhere. Seas 3 ft.
.THU...E winds 10 to 15 kt S of 18N, and S less than 10 kt
elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere.
.THU NIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, Variable
winds less than 10 kt, becoming E less than 10 kt after
midnight. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere.
.FRI...E winds 10 to 15 kt S of 18N, and SE less than 10 kt
elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 3 to 4 ft.
.MON...E winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds less than 10 kt. Seas 3 ft.

Caribbean from 11N to 15N W of 72W

.OVERNIGHT...NE winds 10 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft.
.THU...E winds 10 to 20 kt within 90 nm of coast of Colombia,
and E 10 to 15 kt elsewhere. Seas 4 to 6 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...E winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.MON...E winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.

SW Caribbean S of 11N

.OVERNIGHT...N winds less than 10 kt. Seas 3 to 4 ft.
.THU...SE winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...NW winds less than 10 kt. Seas 3 to 5 ft.
.FRI...N winds less than 10 kt, shifting to SE in the afternoon.
Seas 3 to 4 ft.
.FRI NIGHT...SW winds less than 10 kt. Seas 3 to 4 ft.
.SAT...SW winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...W winds less than 10 kt. Seas 3 to 4 ft.
.SUN...SW winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...Variable winds less than 10 kt, becoming W less
than 10 kt after midnight. Seas 3 ft.
.MON...SW winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 3 ft.
.MON NIGHT...Variable winds less than 10 kt. Seas 3 ft in the
evening, subsiding to 2 ft or less.

Caribbean between 64W and 72W

.OVERNIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...Gulf of Venezuela, NE winds 10 to 20 kt, shifting
to E 20 to 25 kt after midnight. Elsewhere, E winds 10 to 20 kt.
Seas 4 to 6 ft.
.FRI...E winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.SAT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...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 4 ft.

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

.OVERNIGHT...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 4 to 6 ft.
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 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.

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 4 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.
.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.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...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.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A frontal boundary will persist across the NW part
of
the forecast region, and E of Florida likely through the
weekend. The front will shift westward as the Atlantic high
pressure moves also westward over the next two or three days.
Moderate to fresh S winds are expected ahead of the boundary
through late Thu. Scattered to numerous showers and thunderstorms
E of the front are affecting the Bahamas, south Florida, the
Straits of Florida and Cuba. Unsettled weather conditions will
continue ahead of the front over the next few days. Stronger
winds and higher seas are likely near the strongest storms.
Elsewhere, the Atlantic ridge will continue to dominate the
weather pattern across the forecast waters, supporting gentle to
moderate winds and mostly moderate seas.

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

.OVERNIGHT...NE winds less than 10 kt. Seas 4 to 6 ft.
.THU...E winds less than 10 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.FRI...E winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...SE winds less than 10 kt. Seas 3 ft.
.SAT...Variable winds less than 10 kt, becoming S less than
10 kt in the afternoon. Seas 3 ft.
.SAT NIGHT...S winds less than 10 kt. Seas 3 ft.
.SUN...SE winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 3 ft.
.MON...SE winds less than 10 kt. Seas 3 ft.
.MON NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft.

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

.OVERNIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...S winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...S winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 3 to 5 ft.
.FRI...S winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 3 to 4 ft.
.FRI NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft.

Bahamas N of 22N

.OVERNIGHT...SW winds less than 10 kt. Seas 2 ft or less.
.THU...SW winds less than 10 kt. Seas 2 ft or less.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 ft or less.
.FRI...S winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...SE winds less than 10 kt. Seas 2 ft or less.
.SAT...SE winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.SUN...E winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.MON...SE winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...SE winds less than 10 kt. Seas 2 ft or less.

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

.OVERNIGHT...S winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft.
.THU...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...SE winds 10 to 15 kt. Seas 3 to 5 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...SE winds 10 to 15 kt. Seas 3 to 5 ft.

ATLC waters S of 22N W of 65W

.OVERNIGHT...SE winds 10 to 15 kt. Seas 3 ft.
.THU...SE winds 10 to 15 kt. Seas 3 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...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...SE winds 10 to 15 kt. Seas 3 to 5 ft.

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.THU...E winds 10 to 15 kt. Seas 4 to 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI...E winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...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 5 to 6 ft.
.MON...E winds 15 kt. Seas 5 to 6 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.