Offshore Forecast
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000
FZNT31 KNHC 301443
OFFN20

MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1043 AM EDT THU MAR 30 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 WEAKENING COLD FRONT EXTENDS FROM 19N55W SW ACROSS
THE LEEWARD ISLANDS TO 15N65W. THIS FRONT WILL CONTINUE TO MOVE
SE WHILE GRADUALLY DISSIPATING THROUGH TONIGHT. WEAK HIGH PRES
BUILDING N OF THE CENTRAL CARIBBEAN BEHIND FRONT WILL SUPPORT
MAINLY MODERATE TO FRESH WINDS ACROSS MOST OF THE CARIBBEAN
WATERS...EXCEPT FOR STRONG WINDS DEVELOPING AT NIGHT ALONG THE
COAST OF COLOMBIA AND IN THE GULF OF HONDURAS. NORTHERLY SWELL
SUBSIDING IN THE NORTHERN TROPICAL N ATLC WILL BE REPLACED BY A
LARGER BATCH OF LONG PERIOD NORTHERLY SWELL BEGINNING ON SAT.
THIS NORTHERLY WILL PROPAGATE THROUGH ALL OF THE TROPICAL N ATLC
ZONES INTO MON.

NW CARIBBEAN W OF 85W

.THIS AFTERNOON...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
.TONIGHT...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
.FRI...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.FRI NIGHT...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
.SAT...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
.SAT NIGHT...E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
.SUN...SE WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
.SUN NIGHT...SE WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
.MON...SE WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
.MON NIGHT...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.

CARIBBEAN N OF 15N BETWEEN 72W AND 85W

.THIS AFTERNOON...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.TONIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.FRI...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.FRI NIGHT...S OF 18N...E WINDS 10 TO 15 KT. ELSEWHERE...SE
WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 4 TO 6 FT S OF 18N...AND 3 FT ELSEWHERE.
.SAT...E WINDS 10 TO 15 KT. SEAS 3 TO 5 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 5 FT.
.MON...E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.MON NIGHT...SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.

CARIBBEAN FROM 11N TO 15N W OF 72W

.THIS AFTERNOON...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.TONIGHT...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
.FRI...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
.FRI NIGHT...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
.SAT...E WINDS 10 TO 20 KT. SEAS 4 TO 6 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...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.

SW CARIBBEAN S OF 11N

.THIS AFTERNOON...NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
.TONIGHT...NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
.FRI...NE WINDS LESS THAN 10 KT...SHIFTING TO W IN THE
AFTERNOON. SEAS 3 TO 4 FT.
.FRI NIGHT...NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
.SAT...VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
.SAT NIGHT...N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SUN...E WINDS LESS THAN 10 KT...SHIFTING TO SW IN THE
AFTERNOON. SEAS 4 TO 6 FT.
.SUN NIGHT...NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.MON...NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.MON NIGHT...NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.

CARIBBEAN BETWEEN 64W AND 72W

.THIS AFTERNOON...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
.TONIGHT...E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.FRI...E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.FRI NIGHT...E WINDS 15 TO 25 KT GULF OF VENEZUELA... AND E
10 TO 20 KT ELSEWHERE. 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 4 TO 6 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.

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

.THIS AFTERNOON...E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.TONIGHT...NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
.FRI...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.FRI NIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.SAT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.SAT NIGHT...E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
.SUN...E WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
.SUN NIGHT...E WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
.MON...E WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
.MON NIGHT...E WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 5 TO 7 FT.

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

.THIS AFTERNOON...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.TONIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.FRI...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.FRI NIGHT...E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
.SAT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.SAT NIGHT...E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
.SUN...E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
.SUN NIGHT...E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
.MON...E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
.MON NIGHT...E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...WEAK HIGH PRES OVER THE WESTERN PORTION WILL BEGIN
TO SHIFT ESE THIS AFTERNOON IN RESPONSE TO A COLD FRONT MOVING
SSE ACROSS NORTHERN WATERS. THE FRONTAL PORTION E OF THE HIGH
PRES CENTER WILL CONTINUE AS A COLD FRONT EXITING THE AREA
TONIGHT WHILE THE PORTION W OF IT WILL LIFT BACK TO THE N AS A
WARM FRONT THROUGH FRI. A SECOND COLD FRONT WILL EMERGE OUT OVER
THE FAR NW WATERS FRI NIGHT AND MOVE ACROSS THE NORTH-CENTRAL
WATERS SAT AND ACROSS THE NE WATERS SAT NIGHT. THE FRONT WILL BE
PRECEDED BY FRESH TO STRONG WINDS THROUGH THE WEEKEND. HIGH PRES
WILL THEN SLIDE EASTWARD AS DEEPENING LOW PRES TRACKS NE OVER THE
SE CONUS. A TIGHT PRES GRADIENT BETWEEN THESE TWO FEATURES WILL
SUPPORT STRONG TO NEAR GALE FORCE WINDS AND BUILDING SEAS ACROSS
THE NW WATERS MON.

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

.THIS AFTERNOON...S WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.TONIGHT...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.FRI...S WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
.FRI NIGHT...SW WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
.SAT...W WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.SAT NIGHT...N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SUN...E WINDS 10 KT. SEAS 3 TO 4 FT.
.SUN NIGHT...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
.MON...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.MON NIGHT...S WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.

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

.THIS AFTERNOON...NE WINDS LESS THAN 10 KT W OF 70W...AND N
10 TO 15 KT ELSEWHERE. SEAS 5 TO 7 FT.
.TONIGHT...NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT W OF 70W...AND
6 TO 9 FT ELSEWHERE.
.FRI...SE WINDS 10 TO 15 KT W OF 70W...AND E LESS THAN 10 KT
ELSEWHERE. SEAS 5 TO 6 FT W OF 70W...AND 6 TO 9 FT ELSEWHERE.
.FRI NIGHT...W OF 70W...S WINDS 10 TO 20 KT. ELSEWHERE...
VARIABLE WINDS LESS THAN 10 KT...BECOMING SE 10 KT AFTER
MIDNIGHT. SEAS 6 TO 9 FT.
.SAT...SW WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
.SAT NIGHT...W WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
.SUN...N 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 15 KT. SEAS 6 TO 8 FT.
.MON NIGHT...SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.

BAHAMAS N OF 22N

.THIS AFTERNOON...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.TONIGHT...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.FRI...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.FRI NIGHT...SE WINDS LESS THAN 10 KT...INCREASING TO 10 TO
15 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT.
.SAT...SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
.SAT NIGHT...E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
.SUN...E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
.SUN NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.MON...SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.MON NIGHT...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.

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

.THIS AFTERNOON...N WINDS LESS THAN 10 KT...BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.TONIGHT...NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.FRI...SE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
.FRI NIGHT...SE WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
.SAT...S WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
.SAT NIGHT...SW WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
.SUN...N WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
.SUN NIGHT...NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
.MON...E WINDS 10 KT. SEAS 4 TO 6 FT.
.MON NIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.

ATLC WATERS S OF 22N W OF 65W

.THIS AFTERNOON...NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.TONIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.FRI...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.FRI NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.SAT...E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.SAT NIGHT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.SUN...E WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT IN
THE AFTERNOON. SEAS 5 TO 7 FT.
.SUN NIGHT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.MON...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.MON NIGHT...E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.

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

.THIS AFTERNOON...N WINDS LESS THAN 10 KT...BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
.TONIGHT...NE WINDS LESS THAN 10 KT. SEAS 6 TO 7 FT.
.FRI...NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
.FRI NIGHT...E WINDS 10 KT. SEAS 5 TO 6 FT.
.SAT...E WINDS 10 KT. SEAS 7 TO 10 FT.
.SAT NIGHT...E WINDS 10 KT. SEAS 8 TO 12 FT.
.SUN...E WINDS LESS THAN 10 KT. SEAS 8 TO 11 FT.
.SUN NIGHT...NE WINDS LESS THAN 10 KT. SEAS 7 TO 10 FT.
.MON...E WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
.MON NIGHT...E WINDS LESS THAN 10 KT...SHIFTING TO NE AFTER
MIDNIGHT. SEAS 5 TO 7 FT.



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