The rain-swollen Trinity River is seen leading up to the city skyline, Oct. 24, 2015, in Dallas.

J.B. Neckar, right, and his brother Johnny Neckar, left, paddle their mother Gelene Neckar, center, from her flooded home near Downsville, Texas, Oct. 24, 2015.

A road sign that reads 9 feet, 5 inches, referring to an overpass clearance nearby, is wrapped with caution tape on a flooded roadway into White Rock Lake, Oct. 23, 2015, in Dallas, Texas.

A Dallas Fire Rescue responder makes his way over to a stalled vehicle to check on the drive still inside on Hillcrest Road, Oct. 23, 2015, in Dallas.

The Lower Colorado River Authority opened floodgates at Tom Miller Dam to relieve possible flooding on Lake Austin, Oct. 24, 2015, in Austin, Texas.

Floyd Taylor, with the City of Austin Watershed Protection department, cleans debris, Oct. 24, 2015, in Austin, Texas.

Cody Kelly walks from a flooded home near Downsville, Texas, Oct. 24, 2015, after checking on the owner of the home.