The National Weather Service began sending flash flood warnings that should have triggered cellphone alerts a little after 1 a.m., while local officials began posting on Facebook about four hours later.

After deadly floodwaters swept through Central Texas, there are questions about the timeline of weather alerts and possible gaps in the warning system.

Emergency responders continue to search for missing people and local police said efforts have been slowed by "sightseers who are making things worse."

The number of dead from the devastating floods across central Texas surpassed 100 as dozens of people remain missing. In Kerr County, at least 84 people died, including 28 children, according to officials.

Flash floods in Texas killed more than 100 people over the Fourth of July holiday weekend and left others still missing, including girls attending a summer camp. The devastation along the Guadalupe River,

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,