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 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FZNT31 KNHC 210125
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
925 PM EDT Thu Jul 20 2017

Marine Weather HF Voice Broadcast for the Tropical N Atlantic
from 07N to 22N between 55W and 64W, the SW N Atlantic S of
31N W of 65W including 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 ATLC from 07N to 19N
between 55W and 64W

.SYNOPSIS...Fresh to strong winds will prevail in the central
Caribbean extending to the SW basin tonight through Friday
morning. Near gale force winds are forecast along the coast of
Colombia and the Gulf of Venezuela Monday night. Gentle to
moderate winds will cover the remaining basin except for the
Windward Passage and the Gulf of Honduras. Fresh to strong winds
are forecast across the Windward Passage tonight and Friday
night. Winds of the same magnitude will develop in the Gulf of
Honduras Friday night and Monday night.

NW Caribbean W of 85W

.OVERNIGHT...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 20 kt. Seas 3 to 5 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E 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 5 ft.
.MON...E winds 10 to 15 kt. Seas 3 to 5 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 15 kt. Seas 3 to 5 ft.

Caribbean N of 15N between 72W and 85W

.OVERNIGHT...E winds 10 to 20 kt S of 18N, and E less than 10 kt
elsewhere. Seas 6 to 9 ft S of 18N, and 3 to 5 ft elsewhere.
.FRI...S of 18N, E winds 10 to 20 kt. Elsewhere, E winds less
than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas
6 to 8 ft S of 18N, and 3 to 5 ft elsewhere.
.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 4 to 6 ft.
.SUN...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.MON...E winds 10 to 20 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 4 to 6 ft.

Caribbean from 11N to 15N W of 72W

.OVERNIGHT...E winds 15 to 25 kt Within 90 nm of coast of
Colombia, and E 10 to 20 kt elsewhere. Seas 7 to 10 ft.
.FRI...E winds 15 to 25 kt Within 90 nm of coast of Colombia,
and E 10 to 20 kt elsewhere. Seas 6 to 9 ft.
.FRI NIGHT...NE winds 15 to 25 kt Within 90 nm of coast of
Colombia, and E 10 to 20 kt elsewhere. Seas 6 to 8 ft.
.SAT...E winds 15 to 25 kt Within 90 nm of coast of Colombia,
and E 10 to 20 kt elsewhere. Seas 6 to 8 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN...E winds 15 to 25 kt. Seas 6 to 9 ft.
.SUN NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.MON...E winds 15 to 25 kt. Seas 6 to 9 ft.
.MON NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.TUE...E winds 15 to 25 kt. Seas 7 to 10 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft.

SW Caribbean S of 11N

.OVERNIGHT...NE winds less than 10 kt. Seas 5 to 7 ft.
.FRI...E winds less than 10 kt. Seas 5 to 7 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft.
.SUN...NE winds less than 10 kt. Seas 4 to 6 ft.
.SUN NIGHT...N winds less than 10 kt. Seas 4 to 6 ft.
.MON...NW winds less than 10 kt. Seas 5 to 7 ft.
.MON NIGHT...N winds less than 10 kt, shifting to NE after
midnight. Seas 5 to 7 ft.
.TUE...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE NIGHT...NE winds less than 10 kt. Seas 6 to 8 ft.

Caribbean between 64W and 72W

.OVERNIGHT...NE winds 20 to 25 kt N of 16N W of 70W, and E winds
10 to 20 kt elsewhere. Seas 4 to 6 ft.
.FRI...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt
elsewhere. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT...Gulf of Venezuela, E winds 15 to 25 kt, diminishing to
10 to 15 kt in the afternoon. Elsewhere, E winds 10 to 20 kt.
Seas 4 to 6 ft.
.SAT NIGHT...Gulf of Venezuela, E winds 20 to 25 kt. Elsewhere,
E winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN...E winds 20 to 25 kt S of 14N W of 70W and E winds 15 to
20 kt elsewhere. Seas 4 to 8 ft.
.SUN NIGHT...NE to E winds 20 to 25 kt S of 14N W of 69W, and E
winds 15 to 20 kt elsewhere. Seas 4 to 7 ft.
.MON...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON NIGHT...NE to E winds 20 to 25 kt S of 13N W of 69W, and E
winds 10 to 20 kt elsewhere. Seas 5 to 7 ft.
.TUE...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE NIGHT...NE to E winds 20 to 25 kt S of 13N W of 70W, and E
winds 10 to 20 kt elsewhere. Seas 5 to 7 ft.

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. 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 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN NIGHT...E 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 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.

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

.OVERNIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 4 to 6 ft.
.FRI...SE winds less than 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.SAT...E winds less than 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E 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 15 kt. Seas 4 to 5 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...Strong high pressure will continue across the area
supporting fresh to strong winds at night in the approaches to
the Windward Passage the entire period.

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

.OVERNIGHT...S winds 10 kt. Seas 3 to 4 ft.
.FRI...S winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...S winds 10 kt. Seas 3 to 4 ft.
.SAT...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.MON...S winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft.
.TUE...SW winds 10 to 20 kt. Seas 3 to 5 ft.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.

ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W

.OVERNIGHT...S winds 10 kt. Seas 4 ft.
.FRI...S winds 10 to 15 kt. Seas 4 ft.
.FRI NIGHT...S winds less than 10 kt. Seas 4 ft.
.SAT...S winds 10 kt. Seas 4 ft.
.SAT NIGHT...S winds less than 10 kt. Seas 3 to 4 ft.
.SUN...S winds 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...S winds less than 10 kt. Seas 3 to 4 ft.
.MON...S winds 10 kt. Seas 3 to 4 ft.
.MON NIGHT...S winds less than 10 kt. Seas 3 to 4 ft.
.TUE...S winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.

Bahamas N of 22N

.OVERNIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E 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 ft.
.MON...SE winds 10 to 15 kt. Seas 3 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.TUE...SE winds 10 to 15 kt. Seas 3 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI...E winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI NIGHT...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 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...SE winds 10 to 15 kt. Seas 4 to 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds 10 kt. Seas 3 to 4 ft.

ATLC waters S of 22N W of 65W

.OVERNIGHT...E winds 10 to 15 kt except NE to E winds 20 to 25
kt in the approaches of the Windward Passage. 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 except NE to E winds 20 to 25
kt in the approaches of the Windward Passage. 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 except NE to E winds 20 to 25
kt in the approaches of the Windward Passage. Seas 4 to 6 ft.
.SUN...E winds 10 to 15 kt. Seas 4 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt except NE to E winds 20 to 25
kt in the approaches of the Windward Passage. 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 except NE to E winds 20 to 25
kt in the approaches of the Windward Passage. Seas 4 to 6 ft.
.TUE...E winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 15 kt except NE to E winds 20 to 25
kt in the approaches of the Windward Passage. Seas 3 to 4 ft.

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

.OVERNIGHT...E winds 15 kt. Seas 6 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 6 to 7 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.SAT NIGHT...E winds 10 kt. Seas 4 to 5 ft.
.SUN...E winds 10 kt. Seas 4 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 ft.
.MON...E winds 10 to 15 kt. Seas 4 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 4 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.


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.