A Moore Medical Center patient sits in the parking lot after a tornado damaged the hospital on Monday. Alonzo Adams/AP hide caption
An aerial view shows an entire neighborhood destroyed by Monday's tornado in Moore, Okla. Tony Gutierrez/AP hide caption
Barbara Garcia, right, sits with friends after a tornado destroyed much of their neighborhood in Moore, Okla. During an interview with CBS, Garcia found her dog buried in the wreckage of her house. Brett Deering/Getty Images hide caption
Residents survey the destruction after a tornado hit Pratt City, Ala. just north of downtown Birmingham, Ala. on Wednesday, April 27, 2011. Butch Dill/AP hide caption