AccuWeather said the private forecasting company and the National Weather Service sent warnings about potential flash flooding hours before the devastation.

At the all-girls Camp Mystic, located in Hunt – about 17 miles from Kerrville – staff notified parents that all campers at Cypress Lake and Senior Hill are accounted for, adding that those whose daughters are "not accounted for" have been notified.

The devastating floods have claimed 27 lives. More than 20 children are missing, and officials say more deaths are expected.