972  
WGHW60 PHFO 290119  
FFAHFO  
 
URGENT - IMMEDIATE BROADCAST REQUESTED  
FLOOD WATCH  
NATIONAL WEATHER SERVICE HONOLULU HI  
319 PM HST FRI APR 28 2017  
   
..FLASH FLOOD WATCH FOR OAHU MAUI COUNTY AND THE BIG ISLAND
 
 
HIZ005>028-291430-  
/O.EXT.PHFO.FF.A.0004.170429T0119Z-170501T0400Z/  
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
OAHU SOUTH SHORE-WAIANAE COAST-OAHU NORTH SHORE-OAHU KOOLAU-  
OLOMANA-CENTRAL OAHU-WAIANAE MOUNTAINS-MOLOKAI WINDWARD-  
MOLOKAI LEEWARD-LANAI MAKAI-LANAI MAUKA-KAHOOLAWE-  
MAUI WINDWARD WEST-MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-  
WINDWARD HALEAKALA-LEEWARD HALEAKALA-HALEAKALA SUMMIT-KONA-  
SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST-KOHALA-  
BIG ISLAND INTERIOR-BIG ISLAND SUMMITS-  
319 PM HST FRI APR 28 2017  
   
..FLASH FLOOD WATCH NOW IN EFFECT THROUGH SUNDAY AFTERNOON
 
 
THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR  
 
* KAHOOLAWE, LANAI, MAUI, MOLOKAI, OAHU AND THE BIG ISLAND.  
 
* THROUGH SUNDAY AFTERNOON  
 
* A FRONT WILL STALL OVER THE AREA AT THE SAME TIME A POTENT LOW  
ALOFT MOVES OVERHEAD, BRINGING SLOW-MOVING HEAVY SHOWERS AND  
THUNDERSTORMS THAT COULD RESULT IN FLASH-FLOODING. WHILE  
FORECAST MODELS CURRENTLY INDICATE THE GREATEST THREAT FOR  
FLOODING WILL OCCUR OVER MAUI COUNTY, OAHU AND THE BIG ISLAND  
ALSO HAVE THE POTENTIAL TO RECEIVE FLOODING RAIN.  
 
* HEAVY RAIN IS EXPECTED TO BE WIDESPREAD, ESPECIALLY IN MAUI  
COUNTY THIS WEEKEND. RAIN WILL AFFECT WINDWARD AREAS, WHILE  
ALSO IMPACTING URBAN AND LEEWARD AREAS, WHICH ARE MORE  
SUSCEPTIBLE TO FLOODING PROBLEMS, ESPECIALLY IN SOUTH AND WEST  
MAUI. THESE AREAS INCLUDE KIHEI, LAHAINA, KAANAPALI, AND LOW-  
WATER CROSSINGS ALONG PIILANI HIGHWAY BETWEEN KAUPO AND  
ULUPALAKUA.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD  
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.  
 
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION  
SHOULD FLASH FLOOD WARNINGS BE ISSUED.  
 

 
 

 
 
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