Headline:
Flash Flood Warning issued May 15 at 3:30PM HST until May 15 at 6:15PM HST by NWS Honolulu HI
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
May 15, 2026 - 6:30pm
Expires:
May 15, 2026 - 9:15pm
Description:
FFWHFO
The National Weather Service in Honolulu has issued a
* Flash Flood Warning for...
The island of Oahu in Honolulu County
* Until 615 PM HST.
* At 330 PM HST, radar indicated thunderstorms producing heavy rain
over portions of the Koolau mountains, central Oahu, and along the
shoreline in leeward Oahu. The heaviest showers were over the
higher terrain between Wahiawa and Hauula, and near Nanakuli and
Makaha. Rain was falling at a rate of up to 2 inches per hour.
Kamehameha Highway at Waiahole Valley Road was closed, and the
highway at Waikane Stream was also closed around 3 pm. Flooding
was reported in a residential area near Kunia earlier as well.
Flash flooding is ongoing or expected to begin shortly.
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...
Waipio, Wahiawa, Wheeler Field, Mililani, Schofield Barracks,
Kunia, Waikele, Pearl City, Waipahu, Waialua, Aiea, Haleiwa,
Waikane, Waiahole, Halawa, Makakilo, Punaluu, Hauula, Nanakuli and
Waianae.
Instruction:
Stay away from streams, rivers, drainage ditches, and culverts, even
if they are currently dry.
Area Description:
Oahu in Honolulu, HI
Forcast Office:
NWS Honolulu HI
Sender:
w-nws.webmaster@noaa.gov