231 

WGHW50 PHFO 210246

FFWHFO

HIC003-210600-

/O.EXT.PHFO.FF.W.0017.000000T0000Z-260321T0600Z/

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



BULLETIN - EAS ACTIVATION REQUESTED

Flash Flood Warning

National Weather Service Honolulu HI

446 PM 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 800 PM HST.



* At 446 PM HST, emergency management reported several roads still 

  closed due to flooding from earlier today. Latest radar as of 445 

  PM is showing moderate to locally heavy showers with rain rates of 

  0.25 to 1 inch per hour with the heaviest rain over Wahiawa. The 

  Wahiawa Reservoir has decreased from earlier today but still 

  remains a concern due to additional heavy rain expected over the 

  next few days.



  HAZARD...Flash flooding caused by heavy rain.



  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...

  Wahiawa, Schofield Barracks, Wheeler Field, Haleiwa, Waialua, 

  Mililani, Hauula, Laie, Waianae, Punaluu, Kahuku, Nanakuli, 

  Waikane, Kaaawa, Helemano Housing, Whitmore Village, Waimea 

  Valley, Waimea Bay, Mokuleia and Pupukea.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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

if they are currently dry.



Do not cross fast flowing or rising water in your vehicle, or on 

foot. Turn around, don't drown.



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



&&



This warning may need to be extended beyond 800 PM 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



$$



KINO