Headline:
Flash Flood Warning issued March 20 at 3:51PM HST until March 20 at 6:00PM HST by NWS Honolulu HI
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
March 20, 2026 - 6:51pm
Expires:
March 20, 2026 - 9:00pm
Description:
FFWHFO
The National Weather Service in Honolulu has extended the
* Flash Flood Warning for...
The island of Oahu in Honolulu County
* Until 600 PM HST.
* At 351 PM HST, radar indicated an area of heavy rain offshore that
will move through east Oahu within the next hour. Rain rates with
that area are in the 1 to 2 inch per hour range. this additional
rainfall could exacerbate existing flooding and result in
additional impacts.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Radar.
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...
Honolulu, Waipio, Moanalua, Halawa, Salt Lake, Aiea, Kalihi, Pearl
City, Ahuimanu, Iroquois Point, Manoa, Kahaluu, Kaneohe, Waiahole,
Waipahu, Waikele, Palolo, Maunawili, Waikane and Ewa Beach.
Instruction:
Stay away from streams, rivers, drainage ditches, and culverts, even
if they are currently dry.
Excessive runoff from heavy rainfall will cause flooding of drainage
ditches and streams, streets, highways, properties, and other low
lying spots.
Area Description:
Oahu in Honolulu, HI
Forcast Office:
NWS Honolulu HI
Sender: