WGHW50 PHFO 202305

FFWHFO

HIC003-212315-

/O.EXT.PHFO.FF.W.0018.000000T0000Z-260321T2315Z/

/00000.U.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/



BULLETIN - EAS ACTIVATION REQUESTED

Flash Flood Warning

National Weather Service Honolulu HI

105 PM HST Fri Mar 20 2026



The National Weather Service in Honolulu has extended the



* Flash Flood Warning for...

  A Dam Failure on the Kaukonahua Stream below Wahiawa Dam on...

  The island of Oahu in Honolulu County



* Until 115 PM HST Saturday.



* At 105 PM HST, emergency management reported the imminent failure 

  of Wahiawa Dam.



  HAZARD...Flash flooding from the imminent failure of Wahiawa

           Dam.



  SOURCE...Emergency management.



  IMPACT...Flooding of areas downstream from the Wahiawa Dam

           along the Kaukonahua Stream.



* The nearest downstream area from the dam is Waialua, Haleiwa, and 

  Kaukonahua Stream.



This includes the following streams and drainages...

  Poamoho Stm- Dole Fields, Poamoho Stm- Kaukonahua Hwy, Kaukonahua 

  Stm- Schofield, Mohiakea Gul, Waialua Town, Kaukonahua Stm- N Fork 

  Wahiawa, Kaukonahua Stm- Wahiawa, Kiikii Stm- Waialua, 

  Helemano/Opaeula Stm- Haleiwa, Kaukonahua Stm- Waialua and Anahulu 

  R- Haleiwa.

Flooding is occurring along the Kaukonahua Stream.



This warning may need to be extended beyond 115 PM HST Saturday if 

flooding persists.



&&



LAT...LON 2159 15812 2160 15811 2161 15810 2151 15804

      2149 15805 2158 15814 2159 15813



FLASH FLOOD...OBSERVED

DAM FAILURE...IMMINENT



$$



TS