000
FZNT31 KNHC 010235
OFFN20
Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1035 PM EDT Mon Mar 31 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...Fresh to strong trade winds and rough seas will
pulse each night and morning offshore of Colombia and in the
Gulf of Venezuela through Tue. Winds are expected to strengthen
to near- gale force Wed into this weekend as the pressure
gradient strengthens between the Colombian low and high pressure
building over the western Atlantic. Very rough seas will be
possible with these winds. Fresh to strong E to SE winds are
slated to pulse in the Gulf of Honduras through Tue, before
winds increase to near- gale force speeds and rough seas develop
for the second half of the week. Large E swell will continue to
impact the Tropical Atlantic waters and Caribbean Passages most
of the week, maintaining rough seas. Otherwise, moderate to
fresh trade winds, with strong pulses, are expected across the
remainder of the Caribbean through midweek, before widespread
fresh to strong winds and rough seas dominate the basin Thu into
the upcoming weekend.
NW Caribbean W of 85W
.OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.WED...SE winds 10 to 20 kt. Seas 6 to 8 ft.
.WED NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.THU...SE winds 15 to 25 kt. Seas 6 to 9 ft.
.THU NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft.
.FRI...SE winds 15 to 25 kt. Seas 7 to 10 ft.
.FRI NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft.
.SAT...SE winds 15 to 25 kt. Seas 7 to 10 ft.
.SAT NIGHT...SE winds 15 to 25 kt. Seas 6 to 9 ft.
Caribbean N of 15N between 72W and 85W
.OVERNIGHT...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 4 to 6 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 6 to 9 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI...E winds 15 to 25 kt. Seas 7 to 10 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
Caribbean from 11N to 15N W of 72W
.OVERNIGHT...E winds 20 to 25 kt within 90 nm of coast of
Colombia, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft.
.TUE...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.
.TUE NIGHT...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 20 to 25 kt within 90 nm of coast of Colombia,
and E 10 to 20 kt elsewhere. Seas 6 to 9 ft.
.WED NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.THU...E winds 15 to 25 kt. Seas 6 to 9 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 12 ft.
.SAT...E winds 15 to 25 kt. Seas 8 to 13 ft.
.SAT NIGHT...E winds 15 to 25 kt. Seas 8 to 12 ft.
SW Caribbean S of 11N
.OVERNIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.THU...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI...NE winds 10 to 20 kt. Seas 7 to 10 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 8 to 11 ft.
.SAT...NE winds 10 to 20 kt. Seas 8 to 11 ft.
.SAT NIGHT...NE winds 10 to 20 kt. Seas 8 to 11 ft.
Caribbean between 64W and 72W
.OVERNIGHT...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 8 ft
elsewhere.
.TUE...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of Venezuela,
and 6 to 8 ft elsewhere.
.TUE NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 8 ft
elsewhere.
.WED...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of Venezuela,
and 6 to 8 ft elsewhere.
.WED NIGHT...E 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 10 to 20 kt. Seas 7 to 10 ft.
.SAT...E winds 10 to 20 kt. Seas 7 to 10 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
Offshore Leeward Islands and adjacent ATLC waters from 15N to
19N W of 55W
.OVERNIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.TUE...E winds 10 to 20 kt. Seas 6 to 9 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.WED...E winds 10 to 20 kt. Seas 6 to 9 ft.
.WED NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft.
.THU...NE winds 15 to 25 kt. Seas 7 to 10 ft.
.THU NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft.
.FRI...E winds 10 to 20 kt. Seas 7 to 10 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft.
Offshore Windward Islands and adjacent ATLC waters from 07N to
15N W of 55W
.OVERNIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.TUE...E winds 10 to 20 kt. Seas 6 to 9 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.WED...E winds 10 to 20 kt. Seas 6 to 9 ft.
.WED NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.THU...NE winds 10 to 20 kt. Seas 7 to 10 ft.
.THU NIGHT...NE winds 10 to 20 kt. Seas 7 to 9 ft.
.FRI...E winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft.
Synopsis for the the SW N Atlantic including the Bahamas
.SYNOPSIS...Fresh to strong S winds and rough seas will continue
through tonight north of 30N well off the coast of Florida to
70W, as the pressure gradient strengthens between high pressure
in the central Atlantic and low pressure moving through the
eastern United States. Strong winds will expand eastward Tue
morning, impacting areas as far east as 65W. A cold front
associated with the low pressure system is slated to push
offshore of the southeastern U.S. on Tue, and winds behind the
front will turn to the W and weaken in its wake. Elsewhere, high
pressure over the central Atlantic will drift slowly eastward
through Tue, and fresh to strong trade winds will pulse along
the periphery of the ridge, mainly south of 25N. Rough seas will
accompany these winds. High pressure is slated to develop over
the western Atlantic by midweek. A tightening pressure gradient
between the high and the Colombian low will support fresh to
strong E to SE winds and rough seas across the waters south of
27N, including through the Atlantic Passages into the Caribbean.
ATLC waters from 27N to 31N W of 77W
.OVERNIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE...SW winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...Variable winds less than 10 kt, becoming SE 10 kt
after midnight. Seas 4 to 6 ft.
.WED...SE winds 10 to 15 kt. Seas 4 to 5 ft.
.WED NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.THU...SE winds 10 to 20 kt. Seas 5 to 6 ft.
.THU NIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.FRI...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.SAT...S winds 10 to 15 kt. Seas 4 to 5 ft.
.SAT 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 10 to 20 kt. Seas 6 to 7 ft.
.TUE...S winds 10 to 20 kt. Seas 6 to 7 ft.
.TUE NIGHT...S winds less than 10 kt W of 70W, and S 10 to 15 kt
elsewhere. Seas 5 to 7 ft.
.WED...SE winds less than 10 kt. Seas 5 to 6 ft.
.WED NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 to 5 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, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.SAT...NE winds less than 10 kt. Seas 4 to 6 ft.
.SAT NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft.
Bahamas N of 22N
.OVERNIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...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 20 kt. Seas 4 to 6 ft.
.THU...E winds 10 to 20 kt. Seas 4 to 6 ft.
.THU NIGHT...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 4 to 6 ft.
.SAT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
ATLC waters from 22N to 27N between 65W and the Bahamas
.OVERNIGHT...SE winds 10 to 20 kt. Seas 7 to 9 ft.
.TUE...SE winds 10 to 15 kt W of 70W, and SE 10 to 20 kt
elsewhere. Seas 6 to 9 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft.
.WED...E winds 10 to 15 kt. Seas 6 to 8 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.THU...E winds 10 to 20 kt. Seas 6 to 9 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI...E winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT...E winds 10 to 15 kt. Seas 6 to 8 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
ATLC waters S of 22N W of 65W
.OVERNIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.TUE...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.WED...E winds 10 to 20 kt. Seas 6 to 8 ft.
.WED NIGHT...E 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 7 to 10 ft.
.FRI NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.SAT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT 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 20 kt. Seas 9 to 10 ft.
.TUE...E winds 15 to 20 kt. Seas 9 to 10 ft.
.TUE NIGHT...E winds 15 to 20 kt. Seas 8 to 9 ft.
.WED...E winds 15 to 20 kt. Seas 8 to 9 ft.
.WED NIGHT...E winds 15 to 20 kt. Seas 8 to 9 ft.
.THU...NE winds 15 to 20 kt. Seas 8 to 10 ft.
.THU NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft.
.FRI...NE winds 15 to 20 kt. Seas 7 to 10 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.