In what experts call "Flash Flood Alley," the terrain reacts quickly to rainfall steep slopes, rocky ground, and narrow riverbeds leave little time for warning.

The Texas Hill Country has been notorious for flash floods caused by the Guadalupe River. Here's why the area is called "Flash Flood Alley."

Sources have said FEMA wasn’t authorized to launch search and rescue teams until 72 hours after flooding began.

More than 100 deaths have been reported statewide, with most near the Guadalupe River. Several girls from the Dallas area are among the deaths confirmed from Camp Mystic.

Businesses large and small also sprang into action to help the community. Grocery chain H-E-B, which started in Kerrville, one of the cities affected by the floods, has been donating food and supplies through the Red Cross. San Antonio-based fast-food chain Whataburger said it would provide meals to first responders.

The situation evolves daily. Several nonprofit groups that have arrived said they plan to remain on the ground for the next few weeks, providing physical, emotional, and spiritual support.

Lieutenant Governor of Texas Dan Patrick said that least six bodies have been found, including some adults and some children. Some were found in cars, he said

Officials in Texas are facing mounting questions about whether they did enough to get people out of harm’s way before a flash flood swept down the Guadalupe River and killed more than 100 people, incl