Flash Flood — Hays, Texas

2025-06-12 · near San Marcos Lowman Ar, Hays, Texas

Event narrative

Thunderstorms produced heavy rain leading to flash flooding. Cottonwood Creek flooded a low water crossing on Old Bastrop Hwy near Capistrano Dr.

Wider weather episode

A mid-level shortwave trough moved over Texas and combined with an abnormally moist airmass to generate thunderstorms. These storms were very efficient rain producers dropping locally heavy rain that led to flash flooding. There were also a few severe thunderstorms.

View location on OpenStreetMap → (29.8300, -97.9400)

Source: NOAA Storm Events Database, event_id 1272299. Narrative written by the NWS forecast office that issued the report.