391
FZNT31 KNHC 011423
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1023 AM EDT Mon Sep 1 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...A tropical wave over the western Caribbean south of
Grand Cayman will move westward and reach the Gulf of Honduras
tonight before moving west of the basin. Elsewhere, Atlantic
high pressure in combination with low pressure over northern
Colombia will support moderate to fresh trades along with
moderate seas across much of the central Caribbean through Fri
night. Locally strong winds are expected to pulse at night off
Colombia and the Gulf of Venezuela. Otherwise, moderate to fresh
winds will prevail in the Gulf of Honduras through the forecast
period.

NW Caribbean W of 85W

.THIS AFTERNOON...SE winds 10 to 15 kt, diminishing to less than
10 kt in the afternoon. Seas 3 to 5 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.TUE...SE winds less than 10 kt. Seas 2 ft or less.
.TUE NIGHT...SE winds less than 10 kt. Seas 2 ft or less.
.WED...SE winds less than 10 kt. Seas 2 ft or less.
.WED NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less.
.THU...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to
3 ft after midnight.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to
3 ft after midnight.

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds 10 to 15 kt S of 18N, and E less than
10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less
elsewhere.
.TONIGHT...E winds 10 to 15 kt S of 18N, and Variable less than
10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less
elsewhere.
.TUE...E winds 10 to 15 kt S of 18N, and Variable less than
10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less
elsewhere.
.TUE NIGHT...E winds 10 to 15 kt S of 18N, and Variable less
than 10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less
elsewhere.
.WED...E winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 ft.
.WED NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 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 4 ft.

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...NE 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 15 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 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.

SW Caribbean S of 11N

.THIS AFTERNOON...E winds less than 10 kt, shifting to SW in the
afternoon. Seas 4 to 6 ft.
.TONIGHT...NW winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 4 to 6 ft.
.TUE...SW winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...W winds less than 10 kt. Seas 3 to 5 ft.
.WED...NW winds less than 10 kt, shifting to SE in the
afternoon. Seas 3 to 4 ft.
.WED NIGHT...SW winds less than 10 kt. Seas 3 to 4 ft.
.THU...SW winds less than 10 kt. Seas 3 to 4 ft.
.THU NIGHT...Variable winds less than 10 kt. Seas 3 ft.
.FRI...Variable winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...N winds less than 10 kt. Seas 3 to 5 ft.

Caribbean between 64W and 72W

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

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

.THIS AFTERNOON...E winds 10 to 15 kt, shifting to SE in the
afternoon. Seas 3 to 5 ft.
.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 4 ft.
.TUE NIGHT...E winds less than 10 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 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.

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 4 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 4 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. Seas 3 to 4 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.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A stationary front extending across the western
Atlantic through 31N71W to 1012 mb low pressure off Cape
Canaveral, Florida will persist through Thu. Expect fresh to
strong NE winds with moderate to rough seas north of the front
through today, and moderate to fresh NE winds tonight through
Thu
 morning. Scattered showers and thunderstorms associated with
this frontal boundary will affect the Florida seaboard, and the
northern and central Bahamas through Fri. Elsewhere, the
Atlantic
 ridge will dominate the pattern from the central Atlantic
through the Bahamas, supporting gentle to moderate breezes and
mostly moderate seas.

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

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 15 kt, shifting to NE in the afternoon.
Seas 4 to 6 ft.
.TUE NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft.
.WED...NE winds less than 10 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds 10 kt. Seas 3 to 5 ft.
.THU...E winds less than 10 kt. Seas 3 to 4 ft.
.THU NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.FRI...Variable winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...S winds less than 10 kt. Seas 3 ft.

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

.THIS AFTERNOON...SW winds less than 10 kt. Seas 3 to 5 ft.
.TONIGHT...S winds less than 10 kt. Seas 3 to 5 ft.
.TUE...S winds less than 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 to 5 ft.
.WED...S winds 10 to 15 kt. Seas 4 to 5 ft.
.WED NIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft.
.THU...S winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...S winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...S winds 10 kt. Seas 3 to 4 ft.

Bahamas N of 22N

.THIS AFTERNOON...SW winds less than 10 kt. Seas 2 ft or less.
.TONIGHT...S winds less than 10 kt. Seas 2 ft or less.
.TUE...SW winds less than 10 kt. Seas 2 ft or less.
.TUE NIGHT...SW winds less than 10 kt. Seas 2 ft or less.
.WED...SW winds less than 10 kt. Seas 2 ft or less.
.WED NIGHT...S winds less than 10 kt. Seas 2 ft or less.
.THU...SW winds less than 10 kt. Seas 2 ft or less.
.THU NIGHT...S winds less than 10 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.

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

.THIS AFTERNOON...S winds 10 kt. Seas 3 ft.
.TONIGHT...SE winds less than 10 kt. Seas 3 ft.
.TUE...S winds 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...S winds 10 kt. Seas 3 to 4 ft.
.WED...S winds 10 kt. Seas 3 to 4 ft.
.WED NIGHT...S winds 10 kt. Seas 3 to 4 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 10 kt. Seas 3 to 4 ft.

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...SE winds less than 10 kt. Seas 2 ft or less.
.TONIGHT...E winds less than 10 kt. Seas 2 ft or less.
.TUE...SE winds less than 10 kt. Seas 2 ft or less.
.TUE NIGHT...SE winds less than 10 kt. Seas 2 ft or less,
building to 3 ft after midnight.
.WED...SE winds less than 10 kt. Seas 3 ft.
.WED NIGHT...E winds less than 10 kt, shifting to SE after
midnight. 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.

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

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...E winds 10 kt. Seas 3 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds 10 kt. Seas 4 ft.
.WED...E winds 10 kt. Seas 4 ft.
.WED NIGHT...E winds 10 kt. Seas 4 ft.
.THU...E winds 10 kt. Seas 4 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 4 ft.
.FRI...E winds 10 to 15 kt. Seas 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.