Oct 15, 2018
A cold front moved into a very moist atmosphere and generated showers and thunderstorms some of which produced heavy rain that led to flash flooding. Rainfall totals during this episode included 8.40 inches at Mountain Home in Kerr County, 6.26 inches at Llano, and 9.27 inches at Castell in Llano County. This widespread rainfall created a massive flood along the Llano River and its nearby creeks. The flood waters went into the Colorado River and produced lake flooding on Lake LBJ, Lake Marble
Source: NOAA National Weather Service Storm Events Database (event 788552). 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.