437 

WGHW50 PHFO 201153

FFWHFO

HIC003-201500-

/O.EXT.PHFO.FF.W.0017.000000T0000Z-260320T1500Z/

/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/



BULLETIN - EAS ACTIVATION REQUESTED

Flash Flood Warning

National Weather Service Honolulu HI

153 AM HST Fri Mar 20 2026



The National Weather Service in Honolulu has extended the



* Flash Flood Warning for...

  The island of Oahu in Honolulu County



* Until 500 AM HST.



* At 153 AM HST, emergency management reported heavy rain and 

  widespread flooding across northern Oahu this morning. Currently, 

  there is no road access in or out of Haleiwa due to high flood 

  waters. Although rainfall rates have decreased over the area, 

  runoff, high water levels and flash flooding impacts continue.



  HAZARD...Heavy rain producing life threatening flash flooding.



  SOURCE...Emergency management.



  IMPACT...Flooding in drainages, streams, rivers, roads,

           properties, and other low-lying areas. Public road

           closures possible in some areas. Landslides are

           possible in steep terrain.



* Some locations that will experience flash flooding include...

  northern half of Oahu, along and north of a line from Waianae 

  Valley to Mililani Mauka to Waiahole.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Stay away from streams, rivers, drainage ditches, and culverts, even 

if they are currently dry.



Be especially cautious at night when it is harder to recognize the 

dangers of flooding.



The heavy rains may cause rock and mudslides in steep terrain areas.



&&



This warning may need to be extended beyond 500 AM HST if flooding 

persists.



LAT...LON 2148 15824 2153 15825 2157 15829 2158 15829

      2159 15828 2160 15813 2169 15805 2173 15798

      2155 15783 2150 15783 2140 15818



FLASH FLOOD...OBSERVED

FLASH FLOOD DAMAGE THREAT...CONSIDERABLE



$$



RCB