Headline:
Flash Flood Warning issued May 15 at 2:39PM HST until May 15 at 3:30PM HST by NWS Honolulu HI
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
May 15, 2026 - 5:39pm
Expires:
May 15, 2026 - 6:30pm
Description:
At 239 PM HST, radar and automated rain gauges indicated
thunderstorms with violent rain showers of 2 to 4 inches per hour,
in a 5 mile wide band extending across the island from just south of
Nanakuli on the leeward side, to Waipau, Waikele and Pearl City,
then over the Koolau to the windward side near Waikane, Ahuimanu,
and Heeia. Several stream gauges are showing rapid rises, and flash
flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Radar and automated gauges.
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 could experience flash flooding include but are
not limited to...
Kunia, Waipahu, Waikele, Pearl City, Ahuimanu, Waikele, and Heeia.
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