308  
WHHW40 PHFO 201333  
CFWHFO  
 
COASTAL HAZARD MESSAGE  
NATIONAL WEATHER SERVICE HONOLULU HI  
333 AM HST THU JUL 20 2017  
 
...HIGH SURF ADVISORY FOR EAST FACING SHORES OF THE BIG  
ISLAND AND MAUI...  
 
.AN EAST SWELL GENERATED BY TROPICAL CYCLONE FERNANDA  
COMBINED WITH WAVES PRODUCED BY STRONG TRADE WINDS WILL  
LIKELY PRODUCE ELEVATED CHOPPY SURF ALONG EXPOSED EAST  
FACING SHORES OF THE BIG ISLAND AND MAUI TODAY.  
 
HIZ020-024-025-210245-  
/O.CON.PHFO.SU.Y.0036.000000T0000Z-170721T0400Z/  
WINDWARD HALEAKALA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST-  
333 AM HST THU JUL 20 2017  
 
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS  
EVENING...  
 
* SURF...5 TO 8 FEET.  
 
* TIMING...THROUGH THIS AFTERNOON.  
 
* IMPACTS...MODERATE...EXPECT STRONG BREAKING WAVES...SHORE  
BREAK...AND STRONG LONGSHORE AND RIP CURRENTS MAKING  
SWIMMING DIFFICULT AND DANGEROUS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
LARGE BREAKING SURF...SIGNIFICANT SHOREBREAK AND DANGEROUS  
CURRENTS MAKE ENTERING THE WATER VERY HAZARDOUS. BEACHGOERS...  
SWIMMERS AND SURFERS SHOULD HEED ALL ADVICE GIVEN BY OCEAN  
SAFETY OFFICIALS...AND EXERCISE CAUTION.  
 

 
 

 
 
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