Clara and Nolan Shelton, 14-year-old twins from Waco, were among the campers rescued in the devastating floods in the Texas ...

Clara and Nolan Shelton shared their experience of when their summer camps, overtaken by the deadly flash flooding.

Clara and Nolan Shelton, both 14 years old, spoke for the first time with KWTX about the nightmare that unfolded when an overnight storm sent river levels rising nearly 30 feet in an hour.

PHOTO GALLERY: Clara and Nolan Shelton throughout the years. Autoplay. Clara’s Camp Mystic experienced the most tragedy with 27 campers and staff losing their lives and others still unaccounted for.

Clara and Nolan Shelton, both 14 years old, spoke for the first time with KWTX about the nightmare that unfolded when an overnight storm sent river levels rising nearly 30 feet in an hour.

Clara and Nolan Shelton, both 14 years old, spoke for the first time with KWTX about the nightmare that unfolded when an overnight storm sent river levels rising nearly 30 feet in an hour. More than ...

Clara and Nolan Shelton, both 14 years old, spoke for the first time with KWTX about the nightmare that unfolded when an overnight storm sent river levels rising nearly 30 feet in an hour.