Headline:
Flash Flood Warning issued March 21 at 7:47AM HST until March 21 at 11:00AM HST by NWS Honolulu HI
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
March 21, 2026 - 10:47am
Expires:
March 21, 2026 - 2:00pm
Description:
FFWHFO
The National Weather Service in Honolulu has extended the
* Flash Flood Warning for...
The island of Oahu in Honolulu County
* Until 1100 AM HST.
* At 747 AM HST, emergency management continued to report road
closures across Oahu due to recent flooding. Additional bands of
heavy showers and thunderstorms continue to pass over the
southeast half of Oahu, with rain rates as high as 1 to 2 inches
per hour.
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...
the entire Island of Oahu.
Instruction:
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.
Area Description:
Oahu in Honolulu, HI
Forcast Office:
NWS Honolulu HI
Sender:
w-nws.webmaster@noaa.gov