Offshore Forecast
Issued by NWS

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
714
FZNT31 KNHC 220914
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
414 AM EST Sat Nov 22 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 northeast to east winds will pulse
offshore of northern Colombia each night and morning through the
middle of next week as low pressure prevails over the south-
central Caribbean. These winds will bring rough seas to the
waters near northwest Colombia. Otherwise, high pressure
centered over the western Atlantic will support moderate to
fresh trade winds and moderate seas over the rest of the basin
through early next week.

NW Caribbean W of 85W

.TODAY...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...NE winds 10 to 15 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 4 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.

Caribbean N of 15N between 72W and 85W

.TODAY...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...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...NE winds 10 to 20 kt. Seas 5 to 7 ft.

Caribbean from 11N to 15N W of 72W

.TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TONIGHT...E winds 20 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 5 to 7 ft.
.SUN...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.
.SUN NIGHT...E winds 15 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 8 ft.
.MON...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.MON NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.WED...E winds 15 to 25 kt. Seas 7 to 10 ft.
.WED NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft.

SW Caribbean S of 11N

.TODAY...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.MON...NE winds 10 to 20 kt. Seas 6 to 8 ft.
.MON NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...N to 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 6 to 8 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft.

Caribbean between 64W and 72W

.TODAY...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela,
and 4 to 6 ft elsewhere.
.TONIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft.
.SUN...E winds 10 to 15 kt. Seas 3 ft Gulf of Venezuela, and
4 to 6 ft elsewhere.
.SUN NIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft.
.MON...E winds 10 to 15 kt. Seas 4 to 5 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 20 kt. Seas 5 to 7 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 10 to 20 kt. Seas 6 to 8 ft.

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

.TODAY...NE winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...NE 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 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...NE winds 10 to 15 kt. Seas 4 to 5 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...NE winds 10 to 15 kt. Seas 5 to 6 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 5 to 6 ft.

Offshore Windward Islands and adjacent ATLC waters from 07N to
15N W of 55W

.TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 4 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.MON...E winds 10 to 15 kt. Seas 4 to 5 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...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...E winds 10 to 15 kt. Seas 5 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...Moderate to fresh northeast winds over and near the
southeastern Bahamas and through the Windward Passage will
diminish this afternoon. Farther north, moderate to fresh
southwest to west winds will develop offshore of northern
Florida this afternoon. These winds will expand farther east
into the central Atlantic through Sun morning ahead of a rather
weak and dry cold front that will move off the coast of the
eastern U.S. The cold front will move across the northwestern
waters Sun and Sun night, reach from near 31N69W to 28N73W and to
Palm Beach, Florida early Mon, from near 31N55W to 27N65W and as
a stationary front to Vero Beach, Florida by late Mon night. The
cold front portion will shift east of the area late Tue while
the stationary portion transitions to a warm front that will
lifts north of 31N. Moderate to fresh north to northeast winds
and building seas expected in the wake of the front. Looking
ahead, widespread moderate to fresh trade winds will occur over
much of the western Atlantic by midweek as high pressure that
shifts off the eastern U.S. coast expands, and while at the same
a stronger cold front reaches the southern U.S. coast.

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...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE NIGHT...S winds 10 kt. Seas 4 to 5 ft.
.WED...S winds 10 kt. Seas 3 to 5 ft.
.WED NIGHT...SW winds 10 kt. Seas 3 to 4 ft.

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

.TODAY...Variable winds less than 10 kt, becoming W less than
10 kt in the afternoon. Seas 3 to 4 ft.
.TONIGHT...W of 70W, W winds 10 to 15 kt. Elsewhere, Variable
winds less than 10 kt, becoming W less than 10 kt after midnight.
Seas 3 to 4 ft.
.SUN...W of 70W, W winds 10 to 15 kt. Elsewhere, W winds
10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...N winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE...E winds 10 to 20 kt. Seas 6 to 7 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...SE winds 10 to 15 kt. Seas 5 to 7 ft.
.WED NIGHT...SE winds 10 kt. Seas 4 to 6 ft.

Bahamas N of 22N

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

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

.TODAY...NE winds less than 10 kt. Seas 3 to 4 ft.
.TONIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.SUN...NE winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.MON...NE winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...E winds 10 to 15 kt. Seas 4 to 6 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 10 to 15 kt. Seas 5 to 7 ft.

ATLC waters S of 22N W of 65W

.TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...E winds 10 to 15 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 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 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...E 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.

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

.TODAY...NE winds 10 kt. Seas 3 to 4 ft.
.TONIGHT...NE winds 10 kt. Seas 3 to 4 ft.
.SUN...NE winds 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds 10 kt. Seas 3 to 4 ft.
.MON...NE winds 10 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 ft.
.TUE...NE winds 10 to 15 kt. Seas 4 to 5 ft.
.TUE NIGHT...NE winds 15 kt. Seas 5 to 6 ft.
.WED...NE winds 15 to 20 kt. Seas 5 to 7 ft.
.WED NIGHT...NE winds 15 to 20 kt. Seas 6 to 7 ft.