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
571
FZNT31 KNHC 221828 CCA
OFFN20

Marine Weather HF Voice Broadcast...Corrected
NWS National Hurricane Center Miami, FL
1025 AM EST Fri Nov 22 2024

Corrected synopsis

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...A stationary front extending from eastern Cuba to
near the border between Nicaragua and Costa Rica will weaken and
dissipate during the weekend. Fresh to locally strong N winds
are behind the front with seas to 8 ft. These conditions will
gradually diminish through Sun. A tightening pressure gradient
between developing low pressure in the southwestern Caribbean
and high pressure building over the southeastern United States
will promote fresh NE winds in the Atlantic Passages and in the
lee of Cuba on Sat, and moderate to fresh NE to E winds and
moderate seas in E swell will develop across much of the basin
Sun through early next week.

NW Caribbean W of 85W

.TODAY...N winds 10 to 20 kt. Seas 6 to 8 ft.
.TONIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT...N winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft.
.SUN...NE winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE NIGHT...NE winds 10 to 20 kt. Seas 5 to 6 ft.

Caribbean N of 15N between 72W and 85W

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

Caribbean from 11N to 15N W of 72W

.TODAY...Within 90 nm of coast of Colombia, E winds 10 kt in the
morning, becoming variable winds less than 10 kt. Elsewhere, NE
winds less than 10 kt, shifting to N in the afternoon. Seas 3 to
4 ft.
.TONIGHT...Within 90 nm of coast of Colombia, N winds less than
10 kt in the evening, becoming variable winds less than 10 kt.
Elsewhere, N winds 10 to 20 kt. Seas 2 ft or less within 90 nm
of coast of Colombia, and 3 to 5 ft elsewhere.
.SAT...Within 90 nm of coast of Colombia, E winds less than
10 kt in the morning, becoming variable winds less than 10 kt.
Elsewhere, NE winds 10 to 20 kt. Seas 2 ft or less within 90 nm
of coast of Colombia, and 4 to 6 ft elsewhere.
.SAT NIGHT...NE winds 10 to 15 kt. Within 90 nm of coast of
Colombia, seas 2 to 3 ft. Elsewhere, seas 3 to 5 ft.
.SUN...NE winds 10 to 15 kt. Seas 3 to 5 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...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.

SW Caribbean S of 11N

.TODAY...NW winds less than 10 kt. Seas 2 ft or less.
.TONIGHT...N winds 10 to 15 kt. Seas 2 ft or less.
.SAT...N winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...NW winds less than 10 kt. Seas 3 to 5 ft.
.SUN...NW winds less than 10 kt. Seas 3 to 5 ft.
.SUN NIGHT...N winds less than 10 kt. Seas 3 to 4 ft.
.MON...W winds less than 10 kt. Seas 3 ft.
.MON NIGHT...W winds less than 10 kt. Seas 3 to 4 ft.
.TUE...W winds less than 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...W winds less than 10 kt. Seas 3 to 4 ft.

Caribbean between 64W and 72W

.TODAY...E winds less than 10 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 4 ft elsewhere.
.TONIGHT...Gulf of Venezuela, NE winds 10 kt in the evening,
becoming variable winds less than 10 kt. Elsewhere, E winds
10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 4 ft
elsewhere.
.SAT...Gulf of Venezuela, E winds less than 10 kt in the
morning, becoming variable winds less than 10 kt. Elsewhere, E
winds 10 to 15 kt, diminishing to less than 10 kt in the
afternoon. Seas 2 ft or less Gulf of Venezuela, and 3 to 4 ft
elsewhere.
.SAT NIGHT...Gulf of Venezuela, NE winds less than 10 kt,
shifting to E after midnight. Elsewhere, E winds 10 to 15 kt.
Seas 3 to 4 ft.
.SUN...E winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.MON...E winds 10 to 20 kt. Seas 5 to 7 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 15 kt. Seas 5 to 6 ft.

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

.TODAY...SE winds less than 10 kt. Seas 4 to 6 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...E winds 10 to 20 kt. Seas 6 to 8 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE 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

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

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A cold front extends from near 31N66W to 26N72W and
to 23N74W, where it transitions to a stationary front to eastern
Cuba. A reinforcing cold front extends from near 31N73W to near
Vero Beach, Florida. This front will reach from near 31N72W to
SE Florida by early this afternoon. Gale force west to northwest
winds are expected behind this front beginning this afternoon N
of 30N between the front and 77W. Fresh to strong winds are
expected elsewhere on either side of the front N of 26N. The
front will merge into the first front from near 31N64W to 26N69W
and to near the Windward Passage by late tonight, at which time
the gale conditions are expected to diminish. Seas of 12 to 15 ft
are expected with the gale winds, and seas of 8 to 12 ft
elsewhere N and NE of the Bahamas through late tonight. Long-
period N swell with this front will produce rough seas for areas
north of 25N by Sat morning. Rough seas will shift eastward
through this weekend, and seas greater than 8 ft will continue
into next week for areas east of 65W.

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

.TODAY...NW winds 20 to 30 kt. Seas 8 to 11 ft.
.TONIGHT...NW winds 10 to 20 kt. Seas 7 to 10 ft.
.SAT...NW winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT NIGHT...N winds 10 kt in the evening, becoming variable
winds less than 10 kt. Seas 3 to 5 ft.
.SUN...Variable winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...Variable winds less than 10 kt. Seas 3 ft.
.MON...Variable winds less than 10 kt, becoming SE less than
10 kt in the afternoon. Seas 3 ft.
.MON NIGHT...SE winds 10 kt. Seas 3 ft.
.TUE...NW winds less than 10 kt. Seas 2 ft or less, building to
3 ft in the afternoon.
.TUE NIGHT...NW winds less than 10 kt. Seas 3 ft.

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

...GALE WARNING N OF 30N W OF 70W...

.TODAY...W of 70W, W winds 10 to 20 kt, increasing to 20 to
30 kt in the afternoon, except N of 30N between 70W and 77W
30 to 35 kt. Seas 8 to 12 ft, except N of 30N between 70W
and 77W 10 to 14 ft.
.TONIGHT...W of 70W, NW winds 20 to 30 kt diminishing to 10 to
20 kt late, except N of 30N W to NW 30 to 35 kt diminishing to
15 to 25 kt late. Elsewhere, W winds 15 to 25 kt. Seas10 to 14
ft W of 70W subsiding to 8 to 12 ft late, and 8 to 13 ft
elsewhere.
.SAT...W winds 10 to 20 kt. Seas 8 to 13 ft.
.SAT NIGHT...W of 70W, NW winds 10 to 15 kt. Elsewhere, NW winds
10 to 20 kt. Seas 7 to 10 ft W of 70W, and 8 to 13 ft elsewhere.
.SUN...NW winds less than 10 kt. Seas 7 to 10 ft.
.SUN NIGHT...N winds less than 10 kt. Seas 6 to 8 ft.
.MON...NE winds less than 10 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.TUE...E winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.

Bahamas N of 22N

.TODAY...NW winds 10 to 20 kt. Seas 3 to 5 ft.
.TONIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...N winds less than 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.SUN...NE winds 10 to 15 kt. Seas 3 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...NE winds 10 to 20 kt. Seas 3 to 5 ft.
.MON NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft.
.TUE...NE winds 10 to 20 kt. Seas 3 to 5 ft.
.TUE NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft.

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

.TODAY...SW winds 10 to 15 kt. Seas 5 to 7 ft.
.TONIGHT...W winds 10 to 15 kt. Seas 6 to 8 ft.
.SAT...NW winds 10 to 15 kt. Seas 6 to 9 ft.
.SAT NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft.
.SUN...NE winds 10 to 15 kt. Seas 6 to 8 ft.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.MON...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.

ATLC waters S of 22N W of 65W

.TODAY...SW winds less than 10 kt. Seas 3 to 5 ft.
.TONIGHT...SW winds less than 10 kt. Seas 3 to 4 ft.
.SAT...N winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON NIGHT...E 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 10 to 15 kt. Seas 5 to 7 ft.

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

.TODAY...SE winds less than 10 kt. Seas 5 to 6 ft.
.TONIGHT...SE winds less than 10 kt. Seas 4 to 6 ft.
.SAT...SE winds less than 10 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.SUN...E winds 10 to 15 kt. Seas 5 to 6 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft.
.MON...E winds 15 kt. Seas 7 to 8 ft.
.MON NIGHT...E winds 15 to 20 kt. Seas 7 to 8 ft.
.TUE...E winds 15 to 20 kt. Seas 8 ft.
.TUE NIGHT...E winds 15 kt. Seas 7 to 8 ft.