A flood watch issued for parts of Texas has been extended into Monday evening, leaving thousands at risk. The National Weather Service San Angelo office said on Sunday that flash flooding caused by excessive rainfall could occur in Heartland, portions of Concho Valley, Edwards Plateau and Hill Country until 7:00 p.m. on Monday.

Emergency responders continued to search for missing individuals including at least 10 girls who were attending a summer camp on the banks of the Guadalupe River.

The National Weather Service issued timely alerts, meteorologists say, but few were listening in the hours before the early morning flash floods.