NEW : At least two tornadoes in Oklahoma . American Red Cross opens up at least two shelters . Video showed people outside the truck stop receiving treatment for minor injuries . Truck ##s on Interstate 40 east of Oklahoma City destroyed by twister . Storms damaged homes , overturned cars , downed trees in Norman , Oklahoma .
NEW : At least two tornadoes in Oklahoma . American Red Cross opens up at least two shelters . Truck ##s on Interstate 40 east of Oklahoma City destroyed by twister . Storms damaged homes , overturned cars , downed trees in Norman , Oklahoma .