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 212108
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
508 PM EDT Sat Oct 21 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...A tropical wave passing south of Cuba will cross the
western Caribbean and move into Central America through Monday.
Scattered to numerous showers and thunderstorms will accompany
the wave is it moves west. Fresh to locally strong trades will
cover the central Caribbean until noon Monday. A plume of
Saharan dry air and dust is spreading across the eastern
Caribbean decreasing the air quality and reducing visibility. A
cold front is expected to approach the NW Caribbean on
Wednesday.

NW Caribbean W of 85W

.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN NIGHT AND MON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.MON THROUGH THU...NE winds 10 to 20 kt. Seas 4 to 6 ft.

Caribbean N of 15N between 72W and 85W

.TONIGHT...E winds 15 to 25 kt S of 18N, and E 10 to 15 kt
elsewhere. Seas 7 to 10 ft S of 18N, and 4 to 6 ft elsewhere.
.SUN...E winds 15 to 25 kt S of 18N, and E 10 to 20 kt
elsewhere. Seas 7 to 10 ft S of 18N, and 4 to 6 ft elsewhere.
.SUN NIGHT AND MON...E winds 15 to 25 kt S of 18N, and E 10 to
15 kt elsewhere. Seas 7 to 10 ft S of 18N, and 5 to 7 ft
elsewhere.
.MON THROUGH THU...E winds 10 to 20 kt. Seas 5 to 7 ft.

Caribbean from 11N to 15N W of 72W

.TONIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft within 90 nm of
coast of Colombia, and 7 to 10 ft elsewhere.
.SUN...E winds 15 to 25 kt. Seas 8 to 11 ft.
.SUN NIGHT AND MON...E winds 15 to 25 kt. Seas 8 to 11 ft.
.MON THROUGH THU...E winds 10 to 20 kt. Seas 6 to 8 ft.

SW Caribbean S of 11N

.TONIGHT...N winds less than 10 kt. Seas 5 to 7 ft.
.SUN...SW winds less than 10 kt. Seas 6 to 8 ft.
.SUN NIGHT...NW winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 6 to 8 ft.
.MON...S winds less than 10 kt. Seas 5 to 7 ft.
.MON THROUGH THU...S winds 10 to 20 kt. Seas 4 to 6 ft.
.THU NIGHT...SE winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 3 ft in the evening, subsiding to
2 ft or less.

Caribbean between 64W and 72W

.TONIGHT...E winds 20 to 30 kt Gulf of Venezuela, and E 15 to
25 kt elsewhere. Seas 5 to 7 ft Gulf of Venezuela, and 7 to
10 ft elsewhere.
.SUN...E winds 15 to 25 kt. Seas 4 to 6 ft Gulf of Venezuela,
and 7 to 10 ft elsewhere.
.SUN NIGHT AND MON...E winds 20 to 30 kt Gulf of Venezuela, and
E 15 to 25 kt elsewhere. Seas 5 to 7 ft Gulf of Venezuela, and
7 to 10 ft elsewhere.
.MON THROUGH THU...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

.TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN NIGHT AND MON...E winds 10 to 15 kt. Seas 4 to 6 ft.
.MON THROUGH THU...E winds 10 to 15 kt. Seas 5 to 7 ft.

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

.TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN NIGHT AND MON...E winds 10 to 15 kt. Seas 5 to 7 ft.
.MON THROUGH THU...E winds 10 to 20 kt. Seas 6 to 8 ft.

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...Strong high pressure is building over the W Atlc
maintaining fresh to locally strong E to SE winds through
Monday. A cold front is forecast to move off the SE US coast
after sunset on Tuesday night. The cold front will move E from
Florida on Wednesday accompanied by showers and thunderstorms,
capable of producing strong gusty winds and rough seas.

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

.TONIGHT...E winds 15 to 20 kt. Seas 5 to 7 ft.
.SUN...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT AND MON...SE winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...SW winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE THROUGH THU...SE winds 10 to 20 kt. Seas 4 to 6 ft.

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

.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN...E winds 10 to 15 kt. Seas 5 to 6 ft.
.SUN NIGHT AND MON...E winds 10 to 15 kt. Seas 5 to 6 ft.
.MON THROUGH WED...S winds 10 to 20 kt. Seas 5 to 7 ft.
.WED THROUGH THU...N winds 10 to 20 kt. Seas 5 to 7 ft.

Bahamas N of 22N

.TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.SUN...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SUN NIGHT AND MON...E winds 10 to 20 kt. Seas 3 to 5 ft.
.MON THROUGH TUE...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.WED THROUGH THU...E winds 10 to 20 kt. Seas 3 to 4 ft.

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

.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SUN NIGHT AND MON...E winds 10 to 15 kt. Seas 5 to 7 ft.
.MON THROUGH THU...S winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.

ATLC waters S of 22N W of 65W

.TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT AND MON...E winds 10 to 20 kt. Seas 4 to 6 ft.
.MON THROUGH THU...E winds 10 to 15 kt. Seas 3 to 5 ft.

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

.TONIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.SUN...E winds 10 to 15 kt. Seas 5 to 6 ft.
.SUN NIGHT AND MON...E winds 10 to 15 kt. Seas 5 to 6 ft.
.MON THROUGH THU...E winds 10 to 15 kt. Seas 5 to 6 ft.


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