May 11, 2015
Deep tropical moisture pooled ahead of a dissipating late season front across the ranchlands, and combined with an impulse of jet stream energy during the afternoon and evening hours of May 11th. This resulted in a broken area of diurnally driven late afternoon showers and thunderstorms, which was followed by more widespread and slow moving thunderstorms after sunset which ultimately developed into a convective system that produced flash flooding concentrated from southeast Starr and southwest
Source: NOAA National Weather Service Storm Events Database (event 583101). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Brooks County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.