922
FZNT31 KNHC 120220
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1020 PM EDT Fri Jul 11 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 Bermuda high and
the Colombian low will continue to support pulsing fresh to
strong trades and rough seas across the south-central Caribbean
through the forecast period. Fresh east winds are expected
across the Gulf of Honduras, mainly at night, into early next
week. These winds are expected to reach strong speeds Sun night,
and again Mon night. Moderate to fresh winds and moderate seas
are expected in the eastern Caribbean through the weekend while
gentle to moderate winds and slight to moderate seas will
prevail elsewhere.

NW Caribbean W of 85W

.OVERNIGHT...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 20 kt. Seas 4 to 6 ft.
.SUN...E winds 10 to 20 kt. Seas 4 to 6 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 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 3 to 5 ft.
.WED...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

Caribbean N of 15N between 72W and 85W

.OVERNIGHT...S of 18N, E winds 10 to 20 kt. Elsewhere, E winds
less than 10 kt, increasing to 10 to 15 kt after midnight. Seas
4 to 6 ft.
.SAT...E winds 15 to 25 kt S of 18N, and E 10 to 15 kt
elsewhere. Seas 6 to 8 ft S of 18N, and 3 to 5 ft elsewhere.
.SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft S of 18N, and
3 to 5 ft elsewhere.
.SUN...E winds 10 to 20 kt. Seas 6 to 9 ft S of 18N, and 3 to
5 ft elsewhere.
.SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 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 3 to 5 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...E winds 10 to 20 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.

Caribbean from 11N to 15N W of 72W

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

SW Caribbean S of 11N

.OVERNIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT...N winds 10 to 15 kt, shifting to S in the afternoon. Seas
5 to 7 ft.
.SAT NIGHT...W winds less than 10 kt. Seas 5 to 7 ft.
.SUN...W winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 4 to 6 ft.
.SUN NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft.
.MON...NE winds less than 10 kt. Seas 6 to 8 ft.
.MON NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...NE winds 10 to 15 kt. Seas 6 to 9 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft.
.WED...NE winds 10 to 15 kt. Seas 6 to 9 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft.

Caribbean between 64W and 72W

.OVERNIGHT...E winds 20 to 25 kt Gulf of Venezuela, and E 15 to
25 kt elsewhere. Seas 4 to 6 ft Gulf of Venezuela, and 6 to 9 ft
elsewhere.
.SAT...Gulf of Venezuela, E winds 20 to 25 kt, diminishing to
10 to 20 kt in the afternoon. Elsewhere, E winds 10 to 20 kt.
Seas 4 to 6 ft Gulf of Venezuela, and 6 to 9 ft elsewhere.
.SAT NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft Gulf of Venezuela, and 6 to 8 ft
elsewhere.
.SUN...E 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 15 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 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 6 to 8 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 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 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...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.

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 5 to 7 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, diminishing to less than 10 kt in
the afternoon. 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 4 to 5 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...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...The Bermuda-Azores High extends a ridge west-
southwestward across the northern Bahamas and central Florida
tonight. The ridge will gradually shift eastward and weaken
through the upcoming weekend. The related pressure gradient will
support gentle to moderate winds, except for fresh to locally
strong E to SE winds off the northern coast of Hispaniola
through Sat. Winds and seas will diminish Sun through early Mon
as the ridge shifts eastward, then increase modestly Tue as high
pressure shifts westward to near 60W.

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

.OVERNIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...S winds 10 to 15 kt, shifting to SW in the afternoon.
Seas 3 to 5 ft.
.SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...S winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...S winds 10 to 20 kt. Seas 3 to 4 ft.
.TUE NIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft.
.WED...S winds 10 to 20 kt. Seas 4 to 5 ft.
.WED NIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft.

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

.OVERNIGHT...S winds less than 10 kt W of 70W, and Variable less
than 10 kt elsewhere. Seas 3 to 5 ft.
.SAT...S winds 10 kt W of 70W, and Variable less than 10 kt
elsewhere. Seas 3 to 4 ft.
.SAT NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.SUN...S winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...S winds less than 10 kt. Seas 3 to 4 ft.
.MON...S winds 10 kt. Seas 3 to 4 ft.
.MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.WED...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft.

Bahamas N of 22N

.OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.SUN...SE winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less.
.SUN NIGHT...E winds 10 to 15 kt, shifting to SE after midnight.
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, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less.
.TUE...SE winds 10 to 15 kt. Seas 3 ft.
.TUE NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft.
.WED...SE winds 10 to 20 kt. Seas 3 to 5 ft.
.WED NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft.

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

.OVERNIGHT...E winds 10 kt. Seas 3 to 5 ft.
.SAT...SE winds less than 10 kt. Seas 4 to 5 ft.
.SAT NIGHT...Variable winds less than 10 kt, becoming E less
than 10 kt after midnight. Seas 3 to 4 ft.
.SUN...SE winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...SE winds less than 10 kt. Seas 3 ft.
.MON...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...SE 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 20 kt. Seas 5 to 7 ft.

ATLC waters S of 22N W of 65W

.OVERNIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...E winds 10 to 15 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...E winds 10 to 20 kt. Seas 3 to 5 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.

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 4 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 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 15 kt. Seas 5 to 6 ft.
.TUE NIGHT...E winds 15 to 20 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 20 kt. Seas 6 to 7 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft.