(NECN/NBC News: Jay Gray, Okla.) - A mountain of dark, ominous clouds gathered over central Oklahoma.
Several twisters spilled out from the storm cell raking across the area and wreaking havoc.
The storms hit during a late rush hour as thousands were trapped on roadways trying to escape.
One of those wrecks involved a semi pushed on its side by the winds. Down the same stretch of highway at least two people, a mom and her young child, were killed.
Other stranded drivers had to be rescued as the violent system continued to push across the region.
The Weather Channel's Storm Chase Team had their vehicle tossed about 200 feet by a tornado near El Reno, but luckily, no one was injured.
Other stranded drivers had to be rescued as the violent system continue to push across the region, in some areas leaving close to a foot of flood waters.
As the storms pushed into Missouri, still ripping apart homes and forcing thousands - including fans at the canceled St. Louis Cardinals game - to rush for shelter.