709 

WGHW50 PHFO 211156

FFWHFO

HIC003-211500-

/O.EXT.PHFO.FF.W.0017.000000T0000Z-260321T1500Z/

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



BULLETIN - EAS ACTIVATION REQUESTED

Flash Flood Warning

National Weather Service Honolulu HI

156 AM HST Sat Mar 21 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 156 AM HST, emergency management reported numerous closed roads 

  due to flooding. While the latest radar shows a significant 

  decrease in shower coverage and intensity, return showers are 

  expected into the early morning hours. The Wahiawa Reservoir 

  remains elevated and will continue to be 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.



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

dangers of flooding.



&&



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



$$



BLOOD