On Thursday and Friday, warm air from the remnants of a tropical storm pushed west from the Texas coast, flowed over the Balcones Escarpment and fell as heavy rainfall over a large area from Austin north to San Angelo and the Guadalupe River area, according to John Nielsen-Gammon, Texas state climatologist.

Several factors, both meteorological and geographical, created a nightmare recipe for flash flooding across the Texas Hill Country.

When the precipitation intensified in the early morning hours Friday, many people failed to receive or respond to flood warnings at riverside campsites known to be in the floodplain.