Flash Flood in Honolulu County, Hawaii

Flash Flood March 12, 2026 – March 13, 2026 · Honolulu County, Hawaii

$40K

Damage as recorded

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Persistent heavy rain fell across the island of Oahu. Water flooded a residence in Waialua and over a foot of water was reported on Farrington Highway. Flooding was also reported at Waialua High and Intermediate School, and Komo St and Waialua Beach Rd, Waialua.

The wider storm

From March 12th through March 14th of 2026, a large and powerful kona storm setup over the northern central Pacific, and brought numerous impacts across the state. This low was supported by a broad and potent upper level trough that lingered for many days. Impacts included flash flooding, wind damage, large surf, and strong thunderstorms.

Began near Waialua (21.5795, -158.1397).

Source: NOAA Storm Events Database, event 1312684. Narratives are written by the National Weather Service forecast office that issued the report.

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