Flash Flood — Williamson, Texas

2025-07-05 · near Leander, Williamson, Texas

Event narrative

Thunderstorms produced 8-10 inches of rain over the headwaters of the San Gabriel River in Burnet County and an additional 1-2 inches over Leander. Multiple houses were flooded with flowing water around them.

Wider weather episode

Precipitable water values over South-Central Texas remained near record levels, and a mid-level anticyclonic circulation continued over Central Texas providing lift to generate thunderstorms. These storms were efficient rain making storms leading to another night of excessive rainfall. Parts of Burnet and Travis Counties received 12-16 inches of rain in approximately six hours that led to deadly flash flooding. Eighteen people died in flood waters: four in Burnet County, ten in Travis, and four in Williamson. The Travis County Emergency Manager estimated the cost of damage to public property and infrastructure at $5 million. The Burnet County Emergency Manager estimated the cost of damage to public property and infrastructure at $6 million. The Williamson County Emergency Manager estimated the cost of damage to public property and infrastructure at $25 million.

View location on OpenStreetMap → (30.6248, -97.8576)

Source: NOAA Storm Events Database, event_id 1287881. Narrative written by the NWS forecast office that issued the report.