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Flash Flood — Llano, TX

Jul 4, 2025

Tropical Storm Barry moved into and dissipated over eastern Mexico. Moist air from the remnants of Barry moved northward into Texas. Precipitable water values over South-Central Texas increased to near record levels. A mid-level anticyclonic circulation developed and moved over Central Texas providing lift to generate thunderstorms. During the overnight period of July 3-4, a low-level jet streak set up over South Texas and led to training of thunderstorms over the Texas Hill Country. The combina

Source: NOAA National Weather Service Storm Events Database (event 1287690). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Llano, TX

This event is one of many recorded floods in Llano County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

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