Flash Flood in Williamson County, Texas

Flash Flood May 20, 2026 · Williamson County, Texas

$25K

Damage as recorded

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

What the National Weather Service wrote

Heavy rain from slow-moving thunderstorms caused rises along Berry Creek. The combination of elevated streamflow and accumulation of water in a nearby detention basin led to a washout across both lanes of Berry Creek Drive between Airport Road/Briarcrest Drive and Mourning Dove Boulevard.

The wider storm

A slow southward-moving cold front tracked into South-Central Texas, producing a line of strong to severe thunderstorms which advanced ahead of the front as it encountered a moist and unstable airmass on the evening of May 19 into the early hours of May 20. The storms produced swaths of severe winds and some large hail. Locally heavy rain that led to some flash flooding mainly north of the Austin area and in the Hill Country.

Began near Georgetown Muni Arpt (30.7063, -97.6660).

Source: NOAA Storm Events Database, event 1335070. Narratives are written by the National Weather Service forecast office that issued the report.

Tornadoes near your address

See every tornado that passed near a place you know, measured to its path.