The Flood Watch in effect for parts of the southern Plains, including much of Oklahoma and Texas, was expanded southeast this morning to encompass areas that were hit hard by catastrophic and deadly flash flooding last weekend, including Kerr, Travis and Burnet Counties.

"It’s hard to believe the devastation," Trump said. "Trees that are 100 years old just ripped out of the ground. I've never seen anything like this, and I've seen a lot of bad ones."

A firefighter appears to have called for emergency alerts at least an hour before the first warnings were received.