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
000
FZNT31 KNHC 201508
OFFN20

MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1008 AM EST FRI JAN 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...HIGH PRES OVER THE CENTRAL BAHAMAS WILL SHIFT E-NE
THROUGH THE WEEKEND AND INTO THE CENTRAL ATLC BY MON...
WEAKENING TRADE WINDS ACROSS THE BASIN. WINDS WILL INCREASE
ACROSS THE NW CARIBBEAN OVER THE WEEKEND AHEAD OF A STRONG COLD
FRONT FORECAST TO MOVE ACROSS THE GULF OF MEXICO. THIS COLD
FRONT WILL MOVE ACROSS THE YUCATAN CHANNEL AND THE NW CARIBBEAN
SUN NIGHT AND REACH FROM WINDWARD PASSAGE TO SE NICARAGUA TUE
MORNING.

NW CARIBBEAN W OF 85W

.TODAY...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
.TONIGHT...SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.SAT...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.SAT NIGHT...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.SUN...S WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
.SUN NIGHT...SW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.MON...NW WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
.MON NIGHT...NW WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
.TUE...NW WINDS LESS THAN 10 KT IN THE MORNING...BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.TUE NIGHT...E WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT.

CARIBBEAN N OF 15N BETWEEN 72W AND 85W

.TODAY...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.TONIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.SAT...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.SAT NIGHT...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.SUN...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.SUN NIGHT...S WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.MON...SW WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.MON NIGHT...W WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.TUE...NW WINDS 10 TO 15 KT...SHIFTING TO N IN THE AFTERNOON.
SEAS 4 TO 6 FT.
.TUE NIGHT...N WINDS LESS THAN 10 KT...SHIFTING TO NE AFTER
MIDNIGHT. SEAS 3 TO 5 FT.

CARIBBEAN FROM 11N TO 15N W OF 72W

.TODAY...E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.TONIGHT...E WINDS 10 TO 20 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 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 3 TO 4 FT.
.MON...SE WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 4 FT.
.MON NIGHT...S WINDS LESS THAN 10 KT...SHIFTING TO N AFTER
MIDNIGHT. SEAS 3 FT.
.TUE...N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
.TUE NIGHT...NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.

SW CARIBBEAN S OF 11N

.TODAY...NE WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT
IN THE AFTERNOON. SEAS 4 TO 6 FT.
.TONIGHT...NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SAT...NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SAT NIGHT...E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
.SUN...NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
.SUN NIGHT...E WINDS LESS THAN 10 KT. SEAS 3 FT.
.MON...E WINDS LESS THAN 10 KT IN THE MORNING...BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
.MON NIGHT...VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
.TUE...N WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
.TUE NIGHT...N WINDS LESS THAN 10 KT. SEAS 3 FT.

CARIBBEAN BETWEEN 64W AND 72W

.TODAY...GULF OF VENEZUELA...NE WINDS 10 TO 20 KT. ELSEWHERE...
NE
WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT.
.TONIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.SAT...GULF OF VENEZUELA...NE WINDS 10 TO 15 KT. ELSEWHERE...NE
WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT.
.SAT NIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.SUN...E WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. 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...SHIFTING TO SE IN THE AFTERNOON.
SEAS 3 TO 5 FT.
.MON NIGHT...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.TUE...SE WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 4 TO 6 FT.
.TUE NIGHT...E WINDS LESS THAN 10 KT...SHIFTING TO NE AFTER
MIDNIGHT. SEAS 3 TO 5 FT.

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

.TODAY...E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.TONIGHT...NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.SAT...NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.SAT NIGHT...NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.SUN...E WINDS LESS THAN 10 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...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 5 TO 7 FT.
.MON NIGHT...SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.TUE...SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.TUE NIGHT...SE WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT.

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

.TODAY...E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.TONIGHT...NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.SAT...E WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 4 TO 6 FT.
.SAT NIGHT...NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.SUN...E WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. 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 5 TO 7 FT.
.MON NIGHT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 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.

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...THE TAIL END OF A COLD FRONT WILL DROP S THROUGH THE
WATERS S OF 22N E OF 70W THROUGH SAT. WEAK HIGH PRES WILL LINGER
OVER THE CENTRAL BAHAMAS THROUGH TONIGHT BEFORE SHIFTING E THIS
WEEKEND AHEAD OF A STRONG COLD FRONT. THE FRONT WILL MOVE INTO
NW
WATERS SUN NIGHT. THE FRONT WILL REACH FROM 31N71W TO THE SE
BAHAMAS BY MON EVENING...THEN FROM 31N66W TO THE WINDWARD
PASSAGE
 TUE EVENING. THIS FRONT WILL BE ACCOMPANIED BY A LARGE AREA OF
GALE FORCE WINDS BOTH E AND W OF THE FRONT.

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

...GALE CONDITIONS POSSIBLE...

.TODAY...SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.TONIGHT...SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.SAT...SW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.SAT NIGHT...S WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
.SUN...SW WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.SUN NIGHT...SW WINDS 25 TO 35 KT. SEAS 11 TO 16 FT.
.MON...W WINDS 25 TO 35 KT. SEAS 13 TO 18 FT.
.MON NIGHT...W WINDS 25 TO 35 KT. SEAS 13 TO 18 FT.
.TUE...NW WINDS 15 TO 25 KT. SEAS 8 TO 13 FT... SUBSIDING TO
7 TO 10 FT IN THE AFTERNOON.
.TUE NIGHT...W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.

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

...GALE CONDITIONS POSSIBLE...

.TODAY...W WINDS LESS THAN 10 KT W OF 70W...AND NW 10 TO 15 KT
ELSEWHERE. SEAS 5 TO 7 FT W OF 70W...AND 7 TO 10 FT ELSEWHERE.
.TONIGHT...W OF 70W...W WINDS LESS THAN 10 KT...INCREASING TO
10 TO 15 KT AFTER MIDNIGHT. ELSEWHERE...NW WINDS 10 TO 15 KT.
SEAS 5 TO 7 FT.
.SAT...W WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
.SAT NIGHT...SW WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
.SUN...SW WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
.SUN NIGHT...S WINDS 20 TO 30 KT. SEAS 9 TO 14 FT.
.MON...SW WINDS 25 TO 35 KT. SEAS 12 TO 17 FT.
.MON NIGHT...SW WINDS 20 TO 25 KT. SEAS 12 TO 17 FT.
.TUE...W WINDS 15 TO 25 KT. SEAS 11 TO 15 FT.
.TUE NIGHT...NW WINDS 15 TO 25 KT. SEAS 9 TO 14 FT.

BAHAMAS N OF 22N

...GALE CONDITIONS POSSIBLE...

.TODAY...S WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS...BUILDING
TO 3 FT IN THE AFTERNOON.
.TONIGHT...SE WINDS LESS THAN 10 KT. SEAS 3 FT.
.SAT...SE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS...BUILDING TO
3 TO 4 FT IN THE AFTERNOON.
.SAT NIGHT...SE WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
.SUN...S WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
.SUN NIGHT...N OF 24N S WINDS 25 TO 35 KT. ELSEWHERE S WINDS 15
TO 25 KT. SEAS 4 TO 6 FT.
.MON...N OF 24N S WINDS 25 TO 35 KT. ELSEWHERE SW WINDS 20 TO 30
KT. SEAS 6 TO 9 FT.
.MON NIGHT...N OF 24N S WINDS 25 TO 35 KT. ELSEWHERE W WINDS 20
TO 30 KT. SEAS 6 TO 9 FT.
.TUE...NW WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.TUE NIGHT...NW WINDS 10 TO 15 KT...SHIFTING TO N AFTER
MIDNIGHT. SEAS 3 TO 5 FT.

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

...GALE CONDITIONS POSSIBLE...

.TODAY...NW WINDS LESS THAN 10 KT W OF 70W...AND NW 10 TO 15 KT
ELSEWHERE. SEAS 5 TO 7 FT.
.TONIGHT...N WINDS LESS THAN 10 KT W OF 70W...AND N 10 TO 15 KT
ELSEWHERE. SEAS 5 TO 7 FT.
.SAT...W OF 70W...NE WINDS LESS THAN 10 KT...SHIFTING TO SE IN
THE AFTERNOON. ELSEWHERE...N WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
.SAT NIGHT...W OF 70W...S WINDS LESS THAN 10 KT...INCREASING TO
10 TO 15 KT AFTER MIDNIGHT. ELSEWHERE...N WINDS LESS THAN 10 KT.
SEAS 5 TO 6 FT.
.SUN...SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.SUN NIGHT...S WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
.MON...N OF 24N W OF 70W S TO SW WINDS 25 TO 35 KT. ELSEWHERE S
WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.MON NIGHT...N OF 24N W OF 70W S TO SW WINDS 25 TO 35 KT.
ELSEWHERE SW WINDS 15 TO 25 KT. SEAS 9 TO 14 FT.
.TUE...W WINDS 15 TO 25 KT. SEAS 9 TO 13 FT.
.TUE NIGHT...NW WINDS 10 TO 20 KT. SEAS 8 TO 12 FT.

ATLC WATERS S OF 22N W OF 65W

.TODAY...N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.TONIGHT...N WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 5 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 LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SUN...E WINDS 10 TO 15 KT...SHIFTING TO SE IN THE AFTERNOON.
SEAS 3 TO 5 FT.
.SUN NIGHT...SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.MON...S WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.MON NIGHT...S WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
.TUE...W WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
.TUE NIGHT...NW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.

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

.TODAY...SW WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT IN
THE AFTERNOON. SEAS 5 TO 7 FT.
.TONIGHT...NW WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
.SAT...W WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
.SAT NIGHT...NW WINDS LESS THAN 10 KT. SEAS 5 TO 6 FT.
.SUN...VARIABLE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
.SUN NIGHT...SE WINDS LESS THAN 10 KT. SEAS 6 TO 7 FT.
.MON...SE WINDS 10 KT. SEAS 6 TO 7 FT.
.MON NIGHT...SE WINDS 10 TO 15 KT. SEAS 7 FT.
.TUE...S WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
.TUE NIGHT...S WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.



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