Dylan Baddour Kevin Sullivan Wesley Lowery Robert Samuels The Washington Post

Officials in Houston warned of "catastrophic" and potentially historic flooding in the nation's fourth-largest city on Sunday morning, as Harvey continued to pummel Texas, dropping more than two feet of rain and causing dire, and deadly, flash floods.

Officials in Houston warned of "catastrophic" and potentially historic flooding in the nation's fourth-largest city on Sunday morning, as Harvey continued to pummel Texas, dropping more than two feet of rain and causing dire, and deadly, flash floods.