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."

Anguished parents waited for word on the more than two dozen children still missing from Camp Mystic, a Christian girls' camp.

In Kerr County, which has been the most impacted, at least 43 people are dead and 27 children remain missing tonight after floodwaters swept through Camp Mystic, a Christian summer camp for girls. The statewide death toll thus far stands at 51 people. The number of deaths blamed on the flooding in Texas has risen to 51 tonight.