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 282113
OFFN20

MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
513 PM EDT WED SEP 28 2016

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...TROPICAL STORM MATTHEW NEAR 13.8N 62.0W 1008 MB AT
5 PM EDT MOVING W AT 16 KT. MAXIMUM SUSTAINED WINDS 50 KT GUSTS
60 KT. MATTHEW WILL MOVE TO 14.1N 64.4W LATE TONIGHT...14.4N 67.1W
THU AFTERNOON...14.4N 69.5W LATE THU NIGHT WHILE STRENGTHENING TO
A HURRICANE...AND 14.1N 71.3W FRI AFTERNOON. MATTHEW IS THEN
FORECAST TO TURN TO THE NW AND N THIS WEEKEND INTO EARLY NEXT
WEEK...APPROACHING THE WINDWARD PASSAGE LATE SUN INTO MON.

NW CARIBBEAN W OF 85W

.TONIGHT...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...NE WINDS 10 TO 15 KT. SEAS 3 FT.
.FRI...NE WINDS LESS THAN 10 KT. SEAS 3 FT.
.FRI NIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.SAT...NE WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 5 FT.
.SAT NIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.SUN...NE WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 5 FT.
.SUN NIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.MON...N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.

CARIBBEAN N OF 15N BETWEEN 72W AND 85W

...TROPICAL STORM WARNING...

.TONIGHT...E WINDS 15 TO 25 KT S OF 18N...AND E 10 TO 15 KT
ELSEWHERE. S OF 18N...SEAS 4 TO 6 FT. ELSEWHERE...SEAS 2 FT OR
LESS...BUILDING TO 3 FT AFTER MIDNIGHT.
.THU...NE WINDS 15 TO 25 KT. SEAS 3 TO 5 FT.
.THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE WINDS 20 TO
30 KT. S OF 18N...SEAS 5 TO 7 FT...BUILDING TO 7 TO 10 FT AFTER
MIDNIGHT. ELSEWHERE...SEAS 3 TO 5 FT.
.FRI...TROPICAL STORM CONDITIONS POSSIBLE. S OF 18N...NE WINDS 20
TO 30 KT...INCREASING TO 30 TO 40 KT IN THE AFTERNOON.
ELSEWHERE...NE WINDS 10 TO 20 KT. SEAS 8 TO 13 FT S OF 18N...AND 4
TO 6 FT ELSEWHERE.
.FRI NIGHT...HURRICANE CONDITIONS POSSIBLE. NE WINDS 35 TO 45 KT
S OF 18N...AND NE 10 TO 20 KT ELSEWHERE. SEAS 8 TO 13 FT S OF
18N...AND 5 TO 7 FT ELSEWHERE.
.SAT...HURRICANE CONDITIONS POSSIBLE.
.SAT NIGHT...HURRICANE CONDITIONS POSSIBLE.
.SUN...HURRICANE CONDITIONS POSSIBLE.
.SUN NIGHT...HURRICANE CONDITIONS POSSIBLE.
.MON...N WINDS 70 TO 80 KT. S OF 18N...SEAS 10 TO 15 FT.
ELSEWHERE...SEAS 7 TO 10 FT...BUILDING TO 8 TO 13 FT IN THE
AFTERNOON.

CARIBBEAN FROM 11N TO 15N W OF 72W

...TROPICAL STORM WARNING...

.TONIGHT...NE WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
.THU...NE WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
.THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE WINDS 10 TO
20 KT WITHIN 90 NM OF COAST OF COLOMBIA...AND NE 20 TO 30 KT
ELSEWHERE. SEAS 5 TO 7 FT...BUILDING TO 7 TO 10 FT AFTER MIDNIGHT.
.FRI...TROPICAL STORM CONDITIONS EXPECTED. WITHIN 90 NM OF COAST
OF COLOMBIA...N WINDS 20 TO 30 KT...SEAS 9 TO 14 FT...BUILDING
TO 12 TO 17 FT IN THE AFTERNOON. ELSEWHERE...NE WINDS 20 TO
30 KT...INCREASING TO 35 TO 45 KT IN THE AFTERNOON...SEAS 9 TO
14 FT.
.FRI NIGHT...HURRICANE CONDITIONS POSSIBLE. W WINDS 20 TO 30 KT
WITHIN 90 NM OF COAST OF COLOMBIA...AND N 60 TO 70 KT ELSEWHERE.
SEAS 14 TO 19 FT WITHIN 90 NM OF COAST OF COLOMBIA...AND 11 TO
16 FT ELSEWHERE.
.SAT...HURRICANE CONDITIONS POSSIBLE.
.SAT NIGHT...HURRICANE CONDITIONS POSSIBLE.
.SUN...HURRICANE CONDITIONS POSSIBLE.
.SUN NIGHT...HURRICANE CONDITIONS POSSIBLE.
.MON...W WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.

SW CARIBBEAN S OF 11N

.TONIGHT...N WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
.THU...NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.THU NIGHT...N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.FRI...N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.FRI NIGHT...NW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
.SAT...NW WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
.SAT NIGHT...W WINDS 10 TO 20 KT. SEAS 8 TO 12 FT.
.SUN...W WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
.SUN NIGHT...W WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
.MON...SW WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.

CARIBBEAN BETWEEN 64W AND 72W

...HURRICANE WARNING...

.TONIGHT...TROPICAL STORM CONDITIONS. GULF OF VENEZUELA...NE
WINDS 10 TO 20 KT...SEAS 3 TO 5 FT. ELSEWHERE...NE WINDS 25 TO 35
KT...INCREASING TO 40 TO 50 KT AFTER MIDNIGHT...SEAS 6 TO 8
FT...BUILDING TO 8 TO 13 FT AFTER MIDNIGHT.
.THU...TROPICAL STORM CONDITIONS EXPECTED. NE WINDS 10 TO 15 KT
GULF OF VENEZUELA...AND NE 45 TO 55 KT ELSEWHERE. SEAS 3 FT GULF
OF VENEZUELA...AND 11 TO 16 FT ELSEWHERE.
.THU NIGHT...TROPICAL STORM CONDITIONS EXPECTED. NW WINDS 10 TO
15 KT GULF OF VENEZUELA...AND E 50 TO 65 KT ELSEWHERE. SEAS 4 TO
6 FT GULF OF VENEZUELA...AND 12 TO 17 FT ELSEWHERE.
.FRI...HURRICANE CONDITIONS EXPECTED. S WINDS 10 TO 20 KT GULF
OF VENEZUELA...AND E 55 TO 65 KT ELSEWHERE. SEAS 5 TO 7 FT GULF
OF VENEZUELA...AND 11 TO 16 FT ELSEWHERE.
.FRI NIGHT...HURRICANE CONDITIONS POSSIBLE. E WINDS 10 TO 20 KT
GULF OF VENEZUELA...AND E 60 TO 70 KT ELSEWHERE. GULF OF
VENEZUELA...SEAS 4 TO 6 FT. ELSEWHERE...SEAS 8 TO 13 FT...
SUBSIDING TO 7 TO 10 FT AFTER MIDNIGHT.
.SAT...TROPICAL STORM CONDITIONS POSSIBLE.
.SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE.
.SUN...TROPICAL STORM CONDITIONS POSSIBLE.
.SUN NIGHT...TROPICAL STORM CONDITIONS POSSIBLE.
.MON...GULF OF VENEZUELA...S WINDS 10 TO 15 KT...SHIFTING TO NE
IN THE AFTERNOON...SEAS 3 FT IN THE MORNING...SUBSIDING TO 2 FT
OR LESS. ELSEWHERE...SE WINDS 10 TO 20 KT...SEAS 5 TO 7 FT.

OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W

...TROPICAL STORM WARNING...

.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED.
E WINDS 30 TO 40 KT. SEAS 11 TO 16 FT.
.THU...TROPICAL STORM CONDITIONS POSSIBLE.
E WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.THU NIGHT...E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
.FRI...E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
.FRI NIGHT...E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.SAT...E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.SAT NIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.SUN...SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.SUN NIGHT...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.MON...SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.

OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W

...TROPICAL STORM WARNING...

.TONIGHT...TROPICAL STORM CONDITIONS.
E WINDS 40 TO 50 KT. SEAS 8 TO 11 FT.
.THU...TROPICAL STORM CONDITIONS POSSIBLE. E WINDS 30 TO 40 KT...
DIMINISHING TO 20 TO 30 KT IN THE AFTERNOON. SEAS 7 TO 10 FT.
.THU NIGHT...E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
.FRI...E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
.FRI NIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.SAT...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.SAT NIGHT...E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.SUN...SE 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 4 TO 6 FT.

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...A TROUGH EXTENDING NE FROM BIMINI TO 31N76W WILL
LIFT N OF THE AREA TONIGHT. HIGH PRES RIDGING WILL THEN PREVAIL N
OF 22N THROUGH THU. A COLD FRONT WILL MOVE E FROM N FLORIDA THU
NIGHT...THEN STALL JUST OFFSHORE AND WEAKEN THROUGH FRI NIGHT. AN
INCREASE IN WINDS AND SEAS OVER THE S CENTRAL AND SE WATERS WILL
SPREAD W THIS WEEK...WELL NORTH OF TROPICAL CYCLONE MATTHEW.
MATTHEW IS FORECAST TO APPROACH THE SOUTHERN WATERS LATE THIS
UPCOMING WEEKEND INTO EARLY NEXT WEEK.

ATLC WATERS FROM 27N TO 31N W OF 77W

.TONIGHT...SW WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
.THU...SW WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
.THU NIGHT...S WINDS 10 TO 20 KT. SEAS 4 TO 5 FT.
.FRI...SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.FRI NIGHT...S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.SAT...SE WINDS 10 KT. SEAS 4 TO 6 FT.
.SAT NIGHT...SE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
.SUN...E WINDS 10 KT. SEAS 5 TO 6 FT.
.SUN NIGHT...E WINDS 10 TO 15 KT. SEAS 5 FT.
.MON...E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.

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

.TONIGHT...S WINDS 10 TO 15 KT. SEAS 5 FT.
.THU...S WINDS 10 TO 20 KT. SEAS 4 TO 5 FT.
.THU NIGHT...SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.FRI...SE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
.FRI NIGHT...E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
.SAT...E WINDS 10 TO 20 KT. SEAS 6 TO 7 FT.
.SAT NIGHT...E WINDS 10 TO 20 KT. SEAS 6 TO 7 FT.
.SUN...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.SUN NIGHT...SE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
.MON...SE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.

BAHAMAS N OF 22N

.TONIGHT...SE WINDS 10 TO 20 KT. SEAS 2 FT OR LESS...BUILDING
TO 3 FT AFTER MIDNIGHT.
.THU...E WINDS 10 TO 20 KT. SEAS 3 FT IN THE MORNING...SUBSIDING
TO 2 FT OR LESS.
.THU NIGHT...E WINDS 10 TO 20 KT. SEAS 3 FT.
.FRI...E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
.FRI NIGHT...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
.SAT...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
.SAT NIGHT...E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
.SUN...E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
.SUN NIGHT...TROPICAL STORM CONDITIONS POSSIBLE.
.MON...E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.

ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS

.TONIGHT...SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.THU...E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT W OF 70W...AND 6 TO
9 FT ELSEWHERE.
.THU NIGHT...E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT W OF 70W...AND
7 TO 10 FT ELSEWHERE.
.FRI...E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
.FRI NIGHT...E WINDS 10 TO 20 KT. SEAS 7 TO 8 FT.
.SAT...E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
.SAT NIGHT...E WINDS 10 TO 20 KT. SEAS 6 TO 7 FT.
.SUN...E WINDS 10 TO 20 KT. SEAS 6 TO 7 FT.
.SUN NIGHT...E WINDS 10 TO 20 KT. SEAS 6 TO 7 FT.
.MON...E WINDS 10 TO 20 KT. SEAS 6 FT.

ATLC WATERS S OF 22N W OF 65W

.TONIGHT...E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
.THU...E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
.THU NIGHT...E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
.FRI...E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
.FRI NIGHT...E WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
.SAT...E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.SAT NIGHT...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...TROPICAL STORM CONDITIONS POSSIBLE.
.MON...E WINDS 20 TO 30 KT. SEAS 4 TO 6 FT.

ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W

.TONIGHT...E WINDS 15 TO 25 KT. SEAS 8 TO 13 FT.
.THU...E WINDS 15 TO 25 KT. SEAS 8 TO 13 FT.
.THU NIGHT...E WINDS 15 TO 20 KT. SEAS 7 TO 10 FT.
.FRI...E WINDS 15 TO 20 KT. SEAS 7 TO 8 FT.
.FRI NIGHT...E WINDS 15 TO 20 KT. SEAS 7 TO 8 FT.
.SAT...E WINDS 10 TO 20 KT. SEAS 7 FT.
.SAT NIGHT...E WINDS 10 TO 20 KT. SEAS 6 TO 7 FT.
.SUN...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.SUN NIGHT...SE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
.MON...SE WINDS 10 TO 15 KT. SEAS 5 FT.


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