Apr 17, 2015
An approaching broad upper low east of the Four Corners region placed eastern Texas in a favorable upper air pattern conducive to sustaining either a mesoscale storm complex or an organized linear storm system. Daytime heating, within a highly moist environment and a passing shortwave disturbance, allowed a south central Texas originating derecho to pass through within the southwest flow and cause severe weather damage across the Houston, Texas area.
Source: NOAA National Weather Service Storm Events Database (event 573367). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Brazoria County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.