944
FZNT31 KNHC 281413
OFFN20
Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1013 AM EDT Mon Jul 28 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 Atlantic high pressure
and lower pressure over Colombia will support fresh winds and
rough seas over the central Caribbean through Fri. Strong winds
will pulse off Colombia overnight through Fri as the high
pressure builds north of the area. Generally moderate winds and
seas will prevail elsewhere.
NW Caribbean W of 85W
.THIS AFTERNOON...E winds less than 10 kt. Seas 3 to 5 ft.
.TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.TUE...E winds less than 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.WED...E winds less than 10 kt. Seas 3 ft.
.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 15 kt. Seas 3 to 5 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
Caribbean N of 15N between 72W and 85W
.THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 to 5 ft.
.TUE...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 4 to 6 ft S of 18N, and 3 ft elsewhere.
.TUE NIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 4 to 6 ft S of 18N, and 2 ft or less elsewhere.
.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.
.THU...E winds 10 to 15 kt. 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 20 kt. Seas 4 to 6 ft.
Caribbean from 11N to 15N W of 72W
.THIS AFTERNOON...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE NIGHT...NE 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 6 to 8 ft.
.THU...E winds 10 to 20 kt. Seas 6 to 8 ft.
.THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI NIGHT...NE winds 15 to 25 kt. Seas 6 to 9 ft.
SW Caribbean S of 11N
.THIS AFTERNOON...NW winds less than 10 kt. Seas 4 to 6 ft.
.TONIGHT...NW winds less than 10 kt. Seas 3 to 5 ft.
.TUE...N winds less than 10 kt, shifting to SW in the afternoon.
Seas 4 to 6 ft.
.TUE NIGHT...NW winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 4 to 6 ft.
.WED...S winds less than 10 kt. Seas 3 to 5 ft.
.WED NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft.
.THU...NE winds less than 10 kt. Seas 5 to 7 ft.
.THU NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft.
Caribbean between 64W and 72W
.THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft.
.TUE...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of Venezuela,
and 4 to 6 ft elsewhere.
.TUE NIGHT...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 4 to 6 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.THU...E winds 10 to 20 kt. Seas 3 to 5 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 5 to 7 ft.
Offshore Leeward Islands and adjacent ATLC waters from 15N to
19N W of 55W
.THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...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 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.
.THU...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 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.
Offshore Windward Islands and adjacent ATLC waters from 07N to
15N W of 55W
.THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...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 3 to 5 ft.
.WED...E winds less than 10 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. 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 4 to 6 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
Synopsis for the the SW N Atlantic including the Bahamas
.SYNOPSIS...High pressure will dominate the weather pattern
across the forecast region Fri, supporting mostly gentle to
moderate winds and slight to moderate seas over the region.
ATLC waters from 27N to 31N W of 77W
.THIS AFTERNOON...Variable winds less than 10 kt. Seas 2 to 3 ft.
.TONIGHT...Variable winds less than 10 kt, becoming S 10 kt
late. Seas 2 to 3 ft.
.TUE...S winds less than 10 kt. Seas 2 to 3 ft.
.TUE NIGHT...S winds less than 10 kt. Seas 2 to 3 ft.
.WED...SW winds less than 10 kt. Seas 2 to 3 ft.
.WED NIGHT...S winds less than 10 kt. Seas 2 to 3 ft.
.THU...SW winds less than 10 kt. Seas 2 to 3 ft.
.THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.
ATLC waters from 27N to 31N between 65W and 77W
.THIS AFTERNOON...Variable winds less than 10 kt W of 70W, and
SW less than 10 kt elsewhere. Seas 2 to 3 ft.
.TONIGHT...S winds less than 10 kt. Seas 2 to 3 ft.
.TUE...W winds less than 10 kt. Seas 2 to 3 ft.
.TUE NIGHT...W winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 2 to 3 ft.
.WED...W winds less than 10 kt. Seas 2 to 3 ft.
.WED NIGHT...Variable winds less than 10 kt. Seas 2 to 3 ft.
.THU...Variable winds less than 10 kt. Seas 2 to 3 ft.
.THU NIGHT...Variable winds less than 10 kt, becoming S less
than 10 kt late. Seas 2 to 4 ft.
.FRI...SW winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...S winds less than 10 kt. Seas 3 to 4 ft.
Bahamas N of 22N
.THIS AFTERNOON...E winds less than 10 kt. Seas 2 to 4 ft.
.TONIGHT...E to SE winds less than 10 kt. Seas 2 to 4 ft.
.TUE...SE winds less than 10 kt. Seas 2 to 4 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED...E winds less than 10 kt. Seas 2 to 4 ft.
.WED NIGHT...E winds less than 10 kt. Seas 2 to 4 ft.
.THU...E winds less than 10 kt. Seas 2 to 4 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
ATLC waters from 22N to 27N between 65W and the Bahamas
.THIS AFTERNOON...SE winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.TUE...SE winds less than 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.WED...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 3 to 4 ft.
.WED NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.THU...SE winds less than 10 kt. Seas 3 to 4 ft.
.THU NIGHT...E to SE winds less than 10 kt. Seas 3 to 4 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
ATLC waters S of 22N W of 65W
.THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED...E to SE winds 10 to 15 kt. Seas 3 to 4 ft.
.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 15 kt. Seas 3 to 4 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.
ATLC waters from 19N to 22N between 55W and 65W
.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 15 kt. Seas 4 to 5 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 5 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 to 15 kt. Seas 4 to 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...E winds 15 kt. Seas 5 to 7 ft.
.FRI NIGHT...E winds 15 to 20 kt. Seas 5 to 7 ft.