Tornado Relief

The Moore Medical Center – Norman Regional Hospital in Moore Okla., ripped apart by the massive tornado May 20, 2013. The hospital was directly in the path of the 1.3 mile-wide tornado that hit Moore in the late afternoon. (U.S. Air Force photo/Senior Airman Mark Hybers)

Tornado Relief

A man wanders slowly through what remains of his home May 21, 2013, in Moore, Okla. Nothing remains of this home other than the foundation. Only small amounts of salvageable items were found after the massive tornado ripped through Moore May 20, 2013. (U.S. Air Force photo/Senior Airman Mark Hybers)

Tornado Relief

An American flag flies from the rubble of a destroyed home May 21, 2013, in Moore, Okla. A powerful EF-5 tornado touched down approximately three miles south of Tinker Air Force Base, Okla. (U.S. Air Force photo/Maj. Jon Quinlan)

Tornado Relief

Airman 1st Class Skyler Brooks directs residents and emergency responders in the area surrounding the destruction left by a EF-5 tornado May 21, 2013, in Moore, Okla. The massive tornado hit Moore, Okla., May 20, 2013, leaving leveled houses, businesses and schools in its wake. (U.S. Air National Guard photo/Tech. Sgt. Roberta A. Thompson)

Tornado Relief

Senior Master Sgt. Kevin Tucker records an interview of Army Spc. Preston Hodge as he helps a Moore, Okla., family locate mementos and documents from the ruins of their home May 21, 2013. The tornado hit central Okla. May 20, 2013, leaving leveled houses, businesses and schools in its wake. (U.S. Air National Guard photo/Tech. Sgt. Roberta A. Thompson)