May 1, 2021
An upper level low over the Big Bend region combined with a surface low over South Texas to generate thunderstorms. The airmass in which these storms developed was very moist with precipitable water values above the 90th percentile of the long term record. Some of these storms produced locally heavy rain that led to flash flooding.
Source: NOAA National Weather Service Storm Events Database (event 960841). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Caldwell County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.