At least 82 people are dead after heavy rain led to "catastrophic" flooding in Texas. Kerr County was hit the hardest, with at least 75 deaths, including 27 children. President Donald Trump signed a disaster declaration for the county and the Federal Emergency Management Agency is on the ground there.

After floods left more than 80 dead in Texas, questions are emerging about how to provide better warnings in a region known as “flash flood alley.”