there will be more to come and many more by saturday. >> we have a -- >> debris launching through the sky. >> mike we have a roof that just launched through the air here. i don't know where it came from. >> tornadoes wreaking havoc yet again across the plains. >> large tornado. >> residents in the heart land. >> i got trees coming down on me and power flashes. i got to back out of here. >> waking up to disaster as the red cross and emergency personnel begin combing through the neighborhoods damaged or destroyed in oklahoma kansas and nebraska. >> i saw two clouds meet as one and then we could hear the sound of a train. our ears started popping because of the air pressure. >> for the first time in history the national weather service declaring a flash flood emergency in oklahoma city. the massive storm causing up to 8 inches of rainfall in a matter of hours. the main airport in oklahoma city shut down as employees and passengers evacuate through a pedestrian tunnel.