458
FZNT31 KNHC 170838
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
438 AM EDT Sat May 17 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 locally strong E to SE winds will pulse in
the Gulf of Honduras during late afternoons and nights through
midweek next week. Moderate to fresh trades along with moderate
seas over the south-central basin will continue through this
morning. Similar conditions are expected in the lee of Cuba and
near the Windward Passage early this morning and tonight.
Moderate to fresh trades and rough seas will persist over the
Atlantic waters near and east of the Lesser Antilles through Sun
night. On Sun night, increasing trades along with building seas
are expected across the eastern basin, which will then shift
westward across the central and southwestern basin through the
middle of next week.

NW Caribbean W of 85W

.TODAY...E winds 10 to 20 kt. Seas 3 to 5 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.MON...E winds 10 to 20 kt. Seas 3 to 5 ft.
.MON NIGHT...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...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.WED...SE winds 10 to 20 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.

Caribbean N of 15N between 72W and 85W

.TODAY...E winds 10 to 15 kt. 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.
.SUN...S of 18N, E winds 10 to 15 kt, diminishing to less than
10 kt in the afternoon. Elsewhere, E winds 10 to 15 kt. Seas
3 to 5 ft.
.SUN NIGHT...S of 18N, E winds less than 10 kt, increasing to
10 to 15 kt after midnight. Elsewhere, E winds less than 10 kt.
Seas 3 to 4 ft.
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...E 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 15 kt. Seas 3 to 5 ft.

Caribbean from 11N to 15N W of 72W

.TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...Within 90 nm of coast of Colombia, E winds 10 to
15 kt. Elsewhere, E winds less than 10 kt, increasing to 10 to
15 kt after midnight. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.
.SUN NIGHT...Within 90 nm of coast of Colombia, NE winds 10 to
15 kt. Elsewhere, E winds less than 10 kt, increasing to 10 to
15 kt after midnight. 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 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 20 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.

SW Caribbean S of 11N

.TODAY...Variable winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...Variable winds less than 10 kt. Seas 3 ft.
.SUN...Variable winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...Variable winds less than 10 kt. Seas 3 ft.
.MON...Variable winds less than 10 kt, becoming E less than
10 kt in the afternoon. Seas 2 ft or less.
.MON NIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.TUE...Variable winds less than 10 kt. Seas 2 ft or less.
.TUE NIGHT...Variable winds less than 10 kt. Seas 2 ft or less.
.WED...Variable winds less than 10 kt. Seas 3 to 4 ft.
.WED NIGHT...N winds less than 10 kt. Seas 3 to 4 ft.

Caribbean between 64W and 72W

.TODAY...Gulf of Venezuela, E winds 10 to 15 kt, diminishing to
less than 10 kt in the afternoon,Seas 3 ft in the morning,
subsiding to 2 ft or less. Elsewhere, E winds 10 to 15 kt,Seas
4 to 5 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 4 to 5 ft elsewhere.
.SUN...Gulf of Venezuela, E winds 10 to 15 kt, shifting to NE in
the afternoon. Elsewhere, E winds 10 to 15 kt. Seas 2 ft or less
Gulf of Venezuela, and 4 to 6 ft elsewhere.
.SUN NIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 4 to 5 ft elsewhere.
.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 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.

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

.TODAY...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN...E winds 10 to 15 kt. Seas 6 to 8 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.MON...E winds 10 to 15 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.WED...E winds less than 10 kt. Seas 4 to 6 ft.
.WED 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

.TODAY...E winds 10 to 20 kt. Seas 6 to 9 ft.
.TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SUN...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft.
.MON...E winds 10 to 15 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...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.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A strong cold front will exit the U.S. Mid-Atlantic
coast this afternoon and move eastward through late Mon. As a
result, expect moderate to locally fresh SW winds with moderate
seas north of 28N to shift eastward from off the northeastern
Florida coast across the western Atlantic through Tue.
Meanwhile, a broad sub-tropical ridge extending southwestward
from the central Atlantic to southern Florida will support gentle
winds south of 28N. In the long term, fresh to locally strong
southwesterly winds and building seas are expected east of
northeastern Florida and northeast of the Bahamas near midweek
next week, in response to another cold front moving off the
southeastern U.S. Farther south, moderate to fresh NE to E winds
will pulse north of Hispaniola and in the Windward Passage each
night into next week.

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

.TODAY...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...SW 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 less than 10 kt, shifting to S after
midnight. Seas 3 ft.
.MON...SW winds less than 10 kt. Seas 3 ft.
.MON NIGHT...S winds less than 10 kt. Seas 3 ft.
.TUE...SW winds 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.
.WED...SW winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft.

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

.TODAY...SW winds 10 to 15 kt W of 70W, and S less than 10 kt
elsewhere. Seas 3 to 4 ft.
.TONIGHT...SW winds 10 to 15 kt W of 70W, and S less than 10 kt
elsewhere. Seas 3 to 4 ft.
.SUN...SW winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...SW winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...W winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...W winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...SW winds less than 10 kt. Seas 3 to 5 ft.
.WED...SW winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft.

Bahamas N of 22N

.TODAY...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 2 ft or less.
.TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less.
.SUN...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 2 ft or less.
.SUN NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less.
.MON...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 2 ft or less.
.MON NIGHT...E winds less than 10 kt, shifting to SE after
midnight. Seas 2 ft or less.
.TUE...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 2 ft or less.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less.
.WED...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 2 ft or less.
.WED NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less.

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

.TODAY...E winds less than 10 kt. Seas 3 to 5 ft.
.TONIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.SUN...E winds less than 10 kt. Seas 3 to 5 ft.
.SUN NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft.
.MON...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...Variable winds less than 10 kt, becoming SE less
than 10 kt after midnight. Seas 3 to 4 ft.
.TUE...SW winds less than 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...Variable winds less than 10 kt, becoming SE less
than 10 kt after midnight. Seas 3 to 4 ft.
.WED...S winds less than 10 kt. Seas 3 to 4 ft.
.WED NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft.

ATLC waters S of 22N W of 65W

.TODAY...E 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 to 5 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 less than 10 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. 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.

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

.TODAY...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft.
.SUN...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.MON...SE winds 10 kt. Seas 5 to 6 ft.
.MON NIGHT...E winds less than 10 kt. Seas 4 to 5 ft.
.TUE...SE winds less than 10 kt. Seas 4 to 5 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 4 to 5 ft.
.WED...E winds less than 10 kt. Seas 4 to 5 ft.
.WED NIGHT...E winds less than 10 kt. Seas 4 ft.