Offshore Forecast
Issued by NWS

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000
FZNT31 KNHC 181520
OFFN20

MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
ISSUED BY NATIONAL WEATHER SERVICE OCEAN PREDICTION CENTER
WASHINGTON DC
1030 AM EST WED JAN 18 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 N OF AREA WILL SUPPORT FRESH TO STRONG
WINDS ACROSS MUCH OF THE BASIN INCLUDING THE ATLC PASSAGES TODAY
AND TONIGHT. HIGH PRES N OF AREA WILL THEN WEAKEN ALLOWING THE
TRADES TO DECREASE BEGINNING ON THU. WINDS WILL INCREASE ACROSS
THE NW CARIBBEAN OVER THE WEEKEND AHEAD OF A STRONG COLD FRONT
FORECAST TO MOVE ACROSS THE GULF OF MEXICO. THE COLD FRONT IS
FORECAST TO REACH THE YUCATAN CHANNEL AND THE NW CARIBBEAN SUN
NIGHT WITH STRONG WINDS AND BUILDING SEAS.

NW CARIBBEAN W OF 85W

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

CARIBBEAN N OF 15N BETWEEN 72W AND 85W

.TODAY...E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
.TONIGHT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.THU...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.THU NIGHT...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...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.SAT...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.SAT NIGHT...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.SUN...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
.SUN NIGHT...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.

CARIBBEAN FROM 11N TO 15N W OF 72W

.TODAY...E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT.
.TONIGHT...E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
.THU...E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
.THU NIGHT...E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA...AND E 10 TO 15 KT ELSEWHERE. SEAS 6 TO 8 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 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.

SW CARIBBEAN S OF 11N

.TODAY...NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
.TONIGHT...NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
.THU...NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
.THU NIGHT...NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
.FRI...NE WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 5 TO 7 FT.
.FRI NIGHT...NE WINDS LESS THAN 10 KT. SEAS 4 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...E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SUN...NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
.SUN NIGHT...NE WINDS LESS THAN 10 KT. SEAS 3 FT.

CARIBBEAN BETWEEN 64W AND 72W

.TODAY...NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT GULF OF
VENEZUELA...AND 6 TO 8 FT ELSEWHERE.
.TONIGHT...NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.THU...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.THU NIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.FRI...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.FRI NIGHT...NE WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT.
.SAT...NE WINDS LESS THAN 10 KT. SEAS 3 FT.
.SAT NIGHT...NE WINDS LESS THAN 10 KT. SEAS 3 FT.
.SUN...E WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 FT.
.SUN NIGHT...E WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT.

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

.TODAY...NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.TONIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.THU...E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.THU NIGHT...E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.FRI...E WINDS LESS THAN 10 KT IN THE MORNING...BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.FRI NIGHT...NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SAT...NE WINDS LESS THAN 10 KT IN THE MORNING...BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SAT NIGHT...NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SUN...E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.SUN NIGHT...E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.

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

.TODAY...NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
.TONIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.THU...NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.THU NIGHT...E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.FRI...E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.FRI NIGHT...E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SAT...E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
.SAT NIGHT...E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SUN...E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SUN NIGHT...E WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT.

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...FRESH TO STRONG WINDS WILL PERSIST ACROSS THE
SOUTHERN ZONES...INCLUDING THE APPROACH TO THE WINDWARD PASSAGE
TODAY. THEN...WINDS WILL INCREASE ACROSS THE N WATERS LATER
TODAY AHEAD OF A COLD FRONT FORECAST TO ENTER THE FORECAST REGION
TONIGHT. STRONG TO MINIMAL GALE FORCE WINDS ARE EXPECTED AHEAD OF
THE FRONT OVER THE NE PART OF THE AREA TONIGHT. FRESH TO STRONG
WINDS AND BUILDING SEAS IN NW SWELL WILL FOLLOW THE FRONT FORECAST
TO MOVE ACROSS THE EASTERN ZONES ON FRI...REACHING THE SE WATERS
ON SAT WHILE WEAKENING.

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

.TODAY...W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.TONIGHT...NW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.THU...N WINDS 10 TO 15 KT IN THE MORNING...BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.THU NIGHT...VARIABLE WINDS LESS THAN 10 KT...BECOMING S LESS
THAN 10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT.
.FRI...SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.FRI NIGHT...SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.SAT...SW WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
.SAT NIGHT...SW WINDS 10 TO 20 KT. SEAS 4 TO 5 FT.
.SUN...S WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
.SUN NIGHT...S WINDS 20 TO 30 KT. SEAS 7 TO 9 FT... BUILDING TO
8 TO 13 FT AFTER MIDNIGHT.

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

.TODAY...SW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
.TONIGHT...W WINDS 15 TO 25 KT. SEAS 5 TO 7 FT... BUILDING TO
7 TO 10 FT AFTER MIDNIGHT.
.THU...N WINDS 10 TO 20 KT W OF 70W...AND NW 15 TO 25 KT
ELSEWHERE. SEAS 6 TO 9 FT W OF 70W...AND 8 TO 13 FT ELSEWHERE.
.THU NIGHT...W OF 70W...N WINDS 10 TO 15 KT...DIMINISHING TO
LESS THAN 10 KT AFTER MIDNIGHT. ELSEWHERE...NW WINDS 10 TO
20 KT. SEAS 5 TO 7 FT W OF 70W...AND 8 TO 11 FT ELSEWHERE.
.FRI...NW WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 6 TO 8 FT.
.FRI NIGHT...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...SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
.SUN...SW WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
.SUN NIGHT...SW WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.

BAHAMAS N OF 22N

.TODAY...E WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 FT IN THE MORNING... SUBSIDING TO 2 FT OR
LESS.
.TONIGHT...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
.THU...NE WINDS LESS THAN 10 KT IN THE MORNING...BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
.THU NIGHT...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
.FRI...VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
.FRI NIGHT...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
.SAT...SE WINDS LESS THAN 10 KT. SEAS 3 FT.
.SAT NIGHT...SE WINDS LESS THAN 10 KT...INCREASING TO 10 TO
15 KT AFTER MIDNIGHT. SEAS 3 FT.
.SUN...S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.SUN NIGHT...S WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.

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

.TODAY...E WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 4 TO 6 FT.
.TONIGHT...N WINDS LESS THAN 10 KT...SHIFTING TO NW AFTER
MIDNIGHT. SEAS 3 TO 5 FT.
.THU...NW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.THU NIGHT...N WINDS LESS THAN 10 KT W OF 70W...AND NW 10 TO
20 KT ELSEWHERE. SEAS 5 TO 7 FT.
.FRI...N WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
.FRI NIGHT...N 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 IN THE EVENING...BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
.SUN...SE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
.SUN NIGHT...SE WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.

ATLC WATERS S OF 22N W OF 65W

.TODAY...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
.TONIGHT...E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.THU...NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.THU NIGHT...N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
.FRI...N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.FRI NIGHT...N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SAT...NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SAT NIGHT...NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SUN...E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
.SUN NIGHT...E WINDS LESS THAN 10 KT...SHIFTING TO SE AFTER
MIDNIGHT. SEAS 4 TO 6 FT.

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

.TODAY...NE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
.TONIGHT...E WINDS LESS THAN 10 KT. SEAS 5 TO 6 FT.
.THU...E WINDS 10 KT IN THE MORNING...BECOMING VARIABLE WINDS
LESS THAN 10 KT. SEAS 4 TO 5 FT.
.THU NIGHT...VARIABLE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.
.FRI...SW WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
.FRI NIGHT...W WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
.SAT...W WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
.SAT NIGHT...VARIABLE WINDS LESS THAN 10 KT...BECOMING NW LESS
THAN 10 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT.
.SUN...VARIABLE WINDS LESS THAN 10 KT. SEAS 6 TO 7 FT.
.SUN NIGHT...NE WINDS LESS THAN 10 KT. SEAS 7 TO 8 FT.



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