The catastrophic flash floods in Texas have left communities reeling, claiming at least 90 lives and displacing families across the Hill Country. As recovery operations continue, safety concerns have intensified -- not just for the current disaster but for how future flash flood events will be managed.

Flash floods in Texas have killed nearly 90 people, many of them children. Heavy rains fell quickly in the predawn hours Friday in the Texas Hill Country, causing the Guadalupe River to rise 26 feet in just 45 minutes.

Flash flood alley is a curved-shaped region about 300 miles long and 50 miles wide in central/south-central Texas, extending from north of Dallas to southwest of San Antonio. Its location, weather patterns, and geology often combine to create devastating floods.