Third grader's "gut feeling" spares Missouri family from deadly tornado, mom says / Watch: Moment tornado rips roof off building in Oklahoma / Powerful tornado causes damage in Oklahoma / Tornadoes in Texas and Mississippi kill 4 as severe weather moves east / Tornadoes in Texas and Mississippi Kill Two as Severe Weather System Moves East / Oklahoma: more tornado warnings issued a day after 11 injured in twisters / Severe weather in Oklahoma, risk of more tornadoes in several states / Oklahoma braces for more severe weather after tornadoes leave thousands without power / Oklahoma's tornadoes and storms leave thousands without power / Aerial footage shows damage left by Oklahoma tornadoes