Creeks and rivers toppled their banks, and strong currents ripped asphalt from roadways and blew manhole covers from pipes.
Betty Diehl was house-sitting at her daughter's home in Oklahoma City when a river of water came down the road.
"The street was rolling," Diehl said. "I watched it out the window. I said, 'You could take a boat out there.'"
Diehl said her daughter's home, like others in the neighborhood, has suffered through several severe weather events in the last six months — a December blizzard, a May hailstorm and now flooding.
"We've had our share — from ice to hail and now to river," Diehl said.
Fire crews braced for more problems Tuesday, with the forecast calling for more scattered showers.
"The ground is saturated enough," Iago said. "Who knows how much more it can take."