Hawaii Department of Corrections and Rehabilitation Alerts
Flash Flood Warning issued March 20 at 8:22AM HST until March 20 at 1:15PM HST by NWS Honolulu HI
Headline
Flash Flood Warning issued March 20 at 8:22AM HST until March 20 at 1:15PM HST by NWS Honolulu HI
Description
FFWHFO
The National Weather Service in Honolulu has issued a
* 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.
* At 822 AM HST, local law enforcement 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...
Kaukonahua Stm- Wahiawa, Waialua Town, Anahulu R- Haleiwa,
Kaukonahua Stm- Schofield, Kaukonahua Stm- Waialua, Mohiakea Gul,
Poamoho Stm- Kaukonahua Hwy, Kaukonahua Stm- N Fork Wahiawa,
Helemano/Opaeula Stm- Haleiwa, Poamoho Stm- Dole Fields and Kiikii
Stm- Waialua.
Flooding is occurring along the Kaukonahua Stream.
This warning may need to be extended beyond 115 PM HST if flooding
persists.
Instructions
Additional Details
| Type | Alert |
| Phenomena | Flash Flood |
| Severity | Warning |
| Event Code | FFW |
| Area | Oahu in Honolulu, HI |
| Sent | Friday, March 20, 2026 8:22 AM HST |
| Expires | Friday, March 20, 2026 1:15 PM HST |
| Sender | NWS Honolulu HI |
| Id | urn:oid:2.49.0.1.840.0.bb85d07b1d3f706a18bb02af69fdf0a98fc5309e.001.1 |