489  
FZHW52 PHFO 210123  
SRFHFO  
 
SURF ZONE FORECAST  
NATIONAL WEATHER SERVICE HONOLULU HI  
323 PM HST MON FEB 20 2017  
 
HIZ005>011-211430-  
OAHU-  
323 PM HST MON FEB 20 2017  
   
..HIGH SURF ADVISORY FOR NORTH FACING SHORES
 
 
SURF ALONG NORTH FACING SHORES WILL BE 10 TO 15 FEET TONIGHT...  
LOWERING TO 7 TO 10 FEET BY TUESDAY MORNING...AND DROPPING TO 4  
TO 7 FEET BY MID DAY TUESDAY.  
 
SURF ALONG WEST FACING SHORES WILL BE 5 TO 8 FEET TONIGHT...  
LOWERING TO 3 TO 5 FEET BY TUESDAY MORNING...AND DROPPING TO 2  
TO 3 FEET BY MID DAY TUESDAY.  
 
SURF ALONG EAST FACING SHORES WILL BE 4 TO 7 FEET THROUGH  
TUESDAY.  
 
SURF ALONG SOUTH FACING SHORES WILL BE 2 FEET OR LESS THROUGH  
TUESDAY.  
 
OUTLOOK THROUGH MONDAY FEBRUARY 27:  
THE CURRENT NORTH-NORTHWEST SWELL WILL RAPIDLY DECLINE ON  
TUESDAY. A PAIR OF LONG PERIOD NORTHWEST SWELL FROM DISTANT  
SOURCES ARE DUE THIS WEEK. THE FIRST SWELL WILL BUILD ON WEDNESDAY  
AND PEAK WEDNESDAY NIGHT AND THURSDAY...LEADING TO SURF IN THE  
DOUBLE OVERHEAD RANGE. THE NEXT SWELL WILL BUILD ON FRIDAY AND  
PEAK ON FRIDAY NIGHT AND SATURDAY...WITH SURF AROUND THE NORTH  
SHORE ADVISORY LEVEL. THIS SWELL WILL GRADUALLY DECLINE ON SUNDAY  
AND MONDAY. EAST SHORE SURF WILL REMAIN ELEVATED NEAR OR JUST  
BELOW THE ADVISORY LEVEL THROUGH THURSDAY DUE TO A DECLINING  
NORTH-NORTHWEST SWELL TONIGHT...THEN MAINLY FROM SHORT PERIOD  
SEAS DRIVEN BY STRONG TRADE WINDS.  
 
SURF HEIGHTS ARE FORECAST HEIGHTS OF THE FACE OR FRONT OF WAVES. THE  
SURF FORECAST IS BASED ON THE SIGNIFICANT WAVE HEIGHT...THE AVERAGE  
HEIGHT OF THE ONE THIRD LARGEST WAVES...IN THE ZONE OF MAXIMUM  
REFRACTION. SOME WAVES MAY BE MORE THAN TWICE AS HIGH AS THE  
SIGNIFICANT WAVE HEIGHT. EXPECT TO ENCOUNTER RIP CURRENTS IN OR NEAR  
ANY SURF ZONE.  
 

 
 
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