Camp Mystic's executive director began evacuating campers approximately 45 minutes after the National Weather Service issued a "life-threatening flash flooding" alert.

Organizers say a planned candlelight vigil scheduled for this evening in Hunt for victims of the flood has been cancelled due to the threat of more rain in the area. The heaviest rain has now moved southeast along a line from Hondo to San Antonio to Austin.

Residents south of the San Saba River in San Saba County have been ordered to evacuate because of river surging.

A "Basic Plan" for emergency response for three Texas counties labeled flash flooding as having a "major" impact on public safety, according to a page on a city website.

Here's what to know about the deadly flooding, the colossal weather system that drove it and ongoing efforts to identify victims.

A Flash Flood Emergency and numerous Flash Flood Warnings were issued in Central Texas on Sunday morning after torrential rain led to the rapid rise of the Lampasas River.

Over 12,000 volunteers have already assisted in Kerr County, according to the Texas Division of Emergency Management.

The same region of Texas that experienced catastrophic, deadly flooding over the Fourth of July weekend also experienced massive flooding in the past. A 1987 flood in Kerr County resulted in the death of 33 people,