May 23, 2015
An upper level shortwave trough moved around the longwave low over the Four Corners region. This upper distubance interacted with a surface boundary moving northward as a warm front from South Texas into a very moist airmass. This combination led to thunderstorms that produced heavy rain and isolated severe weather. A historic flash flood occurred on the Blanco River late Saturday night into Sunday. Hundreds of homes were destroyed along the river from the City of Blanco down into Wimberley an
Source: NOAA National Weather Service Storm Events Database (event 581648). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Comal County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.