Flash Flood Warning Hawaii | Effective 03/21/2026 06:23
Public safety alert, emergency alert, and weather alert<br />
Description:<br />
At 323 AM HST, radar indicated heavy rain over southwest Oahu. Rain<br />
was falling at a rate of 1 to 3 inches per hour. Flash flooding is<br />
ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Radar.
IMPACT...Flooding in drainages, streams, rivers, roads,<br />
properties, and other low-lying areas. Public road<br />
closures possible in some areas. Landslides are possible<br />
in steep terrain.