A large tree rests on the Highway 12 bridge over the Blanco River in Wimberley, Texas, where eight people are still missing after a vacation home they were staying in was swept away by raging flood waters.

Edgar Mascorro, left, and Emir Nevarez check out the damage on the rooftop at the Silver Springs Apartments in North Austin, Texas, on Sunday.

Residents watch from higher ground as the rising waters from Mountain Creek surround their homes in the Willow Bend mobile home park on Sunday in Grand Prairie, Texas. The Dallas/Forth Worth area had received more than 3 inches of rain since midnight, and more was expected.

A parking lot of Wal-Mart is submerged after the San Marcos River flooded in San Marcos, Texas, on Sunday. Record rainfall was wreaking havoc across a swath of the U.S., causing flash floods in normally dry riverbeds, spawning tornadoes and forcing at least 2,000 people to flee.

Jeremy Steele, from left, Ric Jaime and Keith McNabb salvage belongings at a friend's house near Wimberley, Texas, on Sunda. About 350 homes in the town were washed away by flash floods along the Blanco River, which rose 26 feet in one hour and left piles of wreckage 20 feet high, authorities said. Jay Janner/Austin American-Statesman via AP

People survey damage to one of several destroyed cabins on the banks of the Blanco River in Wimberley, Texas. Flooding in Texas and Oklahoma led to numerous evacuations Sunday.

Gordon Welch surveys damage to the house his family has owned since 1964 along River Road next to the Blanco River in Wimberley, Texas, on Sunday. Welch said that he and his wife watched the house get swept away by flood water.

George and Susan Kruger make one of three trips with their animals from their flooded house to safety Sunday in Purcell, Okla. Water from overnight rains began to rise early in the morning. The Krugers refused to leave their home and made several trips to retrieve five dogs and a baby chick.