Texas Governor Greg Abbott said he had asked President Donald Trump to sign a disaster declaration, which would unlock federal aid for those affected.

The danger has extended to Travis, Williamson and Burnet counties, where very dangerous flash flooding is ongoing Saturday morning. Between 5 and 12 inches of rainfall has fallen there, the weather service said, calling it a "Particularly Dangerous Situation with life-threatening flash flooding."

At least 50 people are dead in central Texas after devastating flash floods slammed Hill Country, with water rescues taking place along the Guadalupe River. While officials couldn't confirm an exact number of those who remain unaccounted for,