011
FZNT31 KNHC 160254
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1054 PM EDT Tue Jul 15 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...Central Atlantic high pressure will gradually build
westward across Florida and into the eastern Gulf of America
through Sat. Fresh to strong trades and rough seas over the
south- central Caribbean will gradually expand across most of
the central portions of the basin Wed through Sat morning as the
Atlantic high pressure shifts westward to near 70W. These winds
are expected to contract in aerial coverage late Sat through
Sun. Fresh E winds are expected in the Gulf of Honduras Thu
through Sat. Moderate to fresh winds and moderate seas are
expected in the eastern Caribbean through the period while
gentle to moderate winds and slight to moderate seas will
prevail NW portions. A pair of tropical waves across the eastern
Caribbean and Tropical Atlantic waters tonight will move across
the basin through Fri, mainly producing active weather across
the SW Caribbean waters Fri through Sat.

NW Caribbean W of 85W

.OVERNIGHT...E 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 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 20 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 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 3 to 5 ft.
.SUN...E winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.

Caribbean N of 15N between 72W and 85W

.OVERNIGHT...E winds 10 to 20 kt S of 18N, and E less than 10 kt
elsewhere. S of 18N, seas 4 to 6 ft. Elsewhere, seas 2 ft or
less, building to 3 ft after midnight.
.WED...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.
.WED NIGHT...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
5 to 7 ft S of 18N, and 3 to 4 ft elsewhere.
.THU...E winds 10 to 20 kt. Seas 4 to 6 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI...E winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT NIGHT...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 3 to 5 ft.

Caribbean from 11N to 15N W of 72W

.OVERNIGHT...E winds 20 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 9 ft.
.WED...E winds 15 to 25 kt. Seas 6 to 9 ft.
.WED NIGHT...NE winds 15 to 25 kt. Seas 6 to 9 ft.
.THU...E winds 15 to 25 kt. Seas 7 to 10 ft.
.THU NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft.
.FRI...E winds 15 to 25 kt. Seas 8 to 11 ft.
.FRI NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft.
.SAT...E winds 15 to 25 kt. Seas 8 to 11 ft.
.SAT NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft.
.SUN...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SUN NIGHT...NE winds 15 to 25 kt. Seas 6 to 9 ft.

SW Caribbean S of 11N

.OVERNIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft.
.WED...NE winds 10 to 15 kt. Seas 6 to 8 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.THU...NE winds 10 to 15 kt. Seas 6 to 9 ft.
.THU NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft.
.FRI...NE winds 10 to 15 kt. Seas 6 to 8 ft.
.FRI NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft.
.SAT...NE winds 10 to 15 kt. Seas 6 to 9 ft.
.SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.SUN...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft.

Caribbean between 64W and 72W

.OVERNIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 5 to 7 ft.
.WED...E winds 10 to 20 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 5 to 7 ft.
.THU...E winds 10 to 20 kt. Seas 5 to 7 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI...E winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SAT...E winds 10 to 20 kt. Seas 5 to 7 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.

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

.OVERNIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.THU...E winds 10 to 15 kt. Seas 5 to 7 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft.
.FRI NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 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 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 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 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 3 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 4 to 6 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...1026 mb high pressure is centered near 32N62.5W and
extends a ridge westward to offshore the Georgia coast. 1012 mb
low pressure, Invest AL93, is moving westward across north
Florida tonight, and could emerge over the far northeastern and
north- central Gulf Wed, possibly approaching the coast of
Louisiana on Thu. High pressure over the central Atlantic will
then build westward across the region and across Florida Wed
through Sat in the wake of the low pressure. The pressure
gradient between the Atlantic ridge building westward and the
low pressure will support moderate to fresh SE to S winds across
the Bahamas and through the NW zones through early Thu, then
continue across the southern Bahamas through Fri night.

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

.OVERNIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.WED...SE winds 10 to 15 kt. Seas 4 to 5 ft.
.WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...S winds 10 kt. Seas 3 to 4 ft.
.FRI...S winds 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...S winds 10 kt. Seas 3 to 4 ft.
.SAT...W winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...Variable winds less than 10 kt, becoming S less
than 10 kt after midnight. Seas 3 to 4 ft.
.SUN...SW winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 ft.

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

.OVERNIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft.
.WED...SE winds 10 to 15 kt. Seas 4 to 5 ft.
.WED NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft.
.THU...SE winds less than 10 kt. Seas 4 to 5 ft.
.THU NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft.
.FRI...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 4 to 5 ft.
.FRI NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.SAT...Variable winds less than 10 kt. 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 ft.
.SUN NIGHT...S winds less than 10 kt. Seas 3 ft.

Bahamas N of 22N

.OVERNIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.FRI...E winds 10 to 20 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 ft.
.SUN...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 ft.

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.THU...E winds 10 to 15 kt. Seas 5 to 7 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...E winds 10 kt. Seas 4 to 5 ft.
.SAT NIGHT...E winds 10 kt. Seas 4 to 5 ft.
.SUN...SE winds 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.

ATLC waters S of 22N W of 65W

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

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

.OVERNIGHT...E winds 15 to 20 kt. Seas 6 to 7 ft.
.WED...E winds 15 to 20 kt. Seas 6 to 7 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft.
.THU...E winds 10 to 15 kt. Seas 5 to 7 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 6 ft.
.FRI NIGHT...E winds 10 kt. Seas 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 6 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.