May 27, 2020
An upper level low and surface cold front interacted to generate thunderstorms. The airmass these features moved into was strongly unstable with steep lapse rates aloft and was conducive for storms producing large hail and damaging wind gusts. The multiple severe storms that hit the Hill Country, Georgetown, San Antonio, and some surrounding communities this day likely led to NCEI (National Center for Environmental Information) to state that the events of May 27 were a billion dollar event, alt
Source: NOAA National Weather Service Storm Events Database (event 893277). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Gillespie County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.