Tiffany Thronesberry said she got an alarming call from her mother, Barbara Jarrell, after the tornado.
“I got a phone call from her screaming, ‘Help! Help! I can’t breathe. My house is on top of me!'” Thronesberry said.
Thronesberry hurried to her mother’s house, where first responders had already pulled her out. Her mother was hospitalized for treatment for cuts and bruises.
Search and rescue efforts were to continue throughout the night.
KFOR meteorologist Mike Morgan called this “the worst tornado damage in the history of the world.”
Up to 100 horses were killed on one farm in Moore, KFOR reports.
Jim Couch, city manager for Oklahoma City, told CBS News that the area is facing “significant damage.”
“We are in search and rescue mode at this time,” Couch said.
Oklahoma City Police Capt. Dexter Nelson said downed power lines and open gas lines posed a risk in the aftermath of the system.
Monday’s powerful tornado loosely followed the path of a killer twister that slammed the region in May 1999.
The weather service estimated that the storm that Monday’s tornado was at least a half-mile wide. The 1999 storm had winds clocked at 300 mph.
Kelsey Angle, a weather service meteorologist in Kansas City, Mo., said it’s unusual for two such powerfultornadoes to track roughly the same path.
It was the fourth tornado to hit Moore since 1998. A twister also struck in 2003.
Monday’s devastation in Oklahoma came almost exactly two years after an enormous twister ripped through the city of Joplin, Mo., killing 158 people and injuring hundreds more.
That May 22, 2011, tornado was the deadliest in the United States since modern tornado record keeping began in 1950, according to the National Oceanic and Atmospheric Administration. Before Joplin, the deadliest modern tornado was June 1953 in Flint, Mich., when 116 people died.
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