Flash Flood — Comal, Texas

2025-07-05 · near Spring Branch, Comal, Texas

Event narrative

Slow-moving thunderstorms moved across Comal County between 8 AM and 11 AM producing 2-6 inches of rain with the highest totals occurring along the Guadalupe River below Canyon Lake. Evacuations on River Road along the Guadalupe River began by 10 AM. At least two unoccupied RVs along River Road were swept into the river. At least a dozen low water crossings were closed west of New Braunfels, with at least three water rescues occurring in that area. On the north side of Canyon Lake, one home flooded with about 10 inches of water due to poor drainage and runoff.

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 → (29.9067, -98.3716)

Source: NOAA Storm Events Database, event_id 1288011. Narrative written by the NWS forecast office that issued the report.