Morning commuters in Oklahoma City were hit with a wave of floods on Monday morning that left cars submerged up to their windows.
Torrential rains began falling at 2 a.m. CST at the rate of 1 to 3 inches per hour prompting flash flood warnings throughout the central part of the state.
Authorities have started evacuating people out of the area and interstates 35, 44, and 235 as well as several local roads have been closed. No injuries have been reported yet.
Some 4,000 people are currently without electricity after flooding and lightning storms felled power lines.
Oklahoma County Sheriff's Office spokesman Mark Myers told CNN that it's a "bad situation throughout the entire county,"
The emergency comes just days after flash floods in Arkansas killed 20 people, most of them vacationers from Texas and Louisiana.
State authorities rescued dozens people from the disaster while one person still remains missing.