441
FZNT31 KNHC 051955
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
355 PM EDT Tue Aug 5 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 will support fresh to
strong winds and rough seas across the south-central Caribbean
through tonight. Fresh to strong winds will also pulse across
the Gulf of Honduras through tonight following the passage of a
tropical wave across Central America. The high pressure will
weaken by Thu, allowing winds and seas to diminish across the
basin, leaving gentle breezes and slight seas across the
northwest Caribbean, moderate to fresh trade winds and moderate
seas elsewhere, and strong winds pulsing off Colombia at night.

NW Caribbean W of 85W

.TONIGHT...E winds 10 to 20 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 3 to 4 ft.
.THU...NE winds less than 10 kt. Seas 3 to 4 ft.
.THU NIGHT...NE winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.FRI...Variable winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...Variable winds less than 10 kt, becoming SE less
than 10 kt after midnight. Seas 2 ft or less.
.SAT...SE winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...E winds 10 to 15 kt. Seas 2 ft or less.
.SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

Caribbean N of 15N between 72W and 85W

.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft S of 18N, and
3 to 5 ft elsewhere.
.WED...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 to 5 ft.
.WED NIGHT...E winds 10 to 15 kt S of 18N, and NE less than
10 kt elsewhere. Seas 3 to 5 ft.
.THU...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 to 5 ft.
.THU NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.FRI...SE winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 3 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 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

Caribbean from 11N to 15N W of 72W

.TONIGHT...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.
.WED...E winds 10 to 20 kt. Seas 6 to 8 ft.
.WED NIGHT...NE winds 10 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 5 to 7 ft.
.THU...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...NE 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 20 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.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.

SW Caribbean S of 11N

.TONIGHT...N winds less than 10 kt. Seas 4 to 6 ft.
.WED...W winds less than 10 kt. Seas 5 to 7 ft.
.WED NIGHT...N winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 to 6 ft.
.THU...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft.
.THU NIGHT...N winds less than 10 kt. Seas 3 to 5 ft.
.FRI...E winds less than 10 kt. Seas 3 to 5 ft.
.FRI NIGHT...Variable winds less than 10 kt, becoming NE less
than 10 kt after midnight. Seas 3 to 4 ft.
.SAT...NE winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.SUN...Variable winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...Variable winds less than 10 kt, becoming N less
than 10 kt after midnight. Seas 3 to 4 ft.

Caribbean between 64W and 72W

.TONIGHT...E winds 20 to 30 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 4 to 6 ft.
.WED...E winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt
elsewhere. Seas 3 to 5 ft.
.WED NIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft.
.THU...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt
elsewhere. 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.

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

.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 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 less than 10 kt. Seas 3 to 5 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 less than 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.SUN...E winds less than 10 kt. Seas 3 to 5 ft.
.SUN 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

.TONIGHT...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...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...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.SUN...E winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Weak low pressure between the northern Bahamas and
Bermuda will support gentle to moderate breezes and slight to
moderate seas across the region, except for occasional fresh
winds pulsing off Hispaniola.

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

.TONIGHT...Variable winds less than 10 kt. Seas 4 to 5 ft.
.WED...Variable winds less than 10 kt. Seas 3 to 4 ft.
.WED NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.THU...Variable winds less than 10 kt. Seas 3 ft.
.THU NIGHT...Variable winds less than 10 kt. Seas 3 ft.
.FRI...Variable winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...Variable winds less than 10 kt, becoming SE less
than 10 kt after midnight. Seas 3 to 4 ft.
.SAT...SE winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.SUN...SE winds 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...SE winds 10 kt. Seas 3 to 4 ft.

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

.TONIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft.
.WED...W of 70W, Variable winds less than 10 kt, becoming SE
less than 10 kt in the afternoon. Elsewhere, SE winds less than
10 kt. Seas 3 to 4 ft.
.WED NIGHT...Variable winds less than 10 kt, becoming SE less
than 10 kt after midnight. Seas 3 to 4 ft.
.THU...SE winds less than 10 kt. Seas 3 ft.
.THU NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.FRI...SE winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.
.SAT...SE winds less than 10 kt. Seas 4 ft.
.SAT NIGHT...Variable winds less than 10 kt. Seas 4 ft.
.SUN...SE winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.

Bahamas N of 22N

.TONIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.WED...E winds less than 10 kt. Seas 3 ft.
.WED NIGHT...E winds less than 10 kt. Seas 3 ft.
.THU...SE winds less than 10 kt. Seas 3 ft.
.THU NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.FRI...SE 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 3 ft.
.SUN NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 ft.

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

.TONIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.WED...E winds 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.
.FRI...SE winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.SAT...SE winds 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 kt. Seas 3 to 4 ft.
.SUN...E winds 10 kt. Seas 4 ft.
.SUN NIGHT...E winds 10 kt. Seas 4 ft.

ATLC waters S of 22N W of 65W

.TONIGHT...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 4 ft.
.THU...E 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 3 to 4 ft.
.FRI...E winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.SAT...E winds less than 10 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.

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

.TONIGHT...E winds 10 to 15 kt. Seas 4 ft.
.WED...E winds 10 to 15 kt. Seas 4 to 5 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.THU...E winds 10 kt. Seas 4 to 5 ft.
.THU NIGHT...E winds 10 kt. Seas 4 to 5 ft.
.FRI...E winds 10 kt. Seas 4 to 5 ft.
.FRI NIGHT...E winds 10 kt. Seas 4 ft.
.SAT...E winds 10 kt. Seas 4 ft.
.SAT NIGHT...E winds 10 kt. Seas 4 ft.
.SUN...E winds 10 kt. Seas 4 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.