The search for survivors goes on Monday night in Oklahoma. Fifty-one people are confirmed dead and at least 140 are injured.
The National Weather service preliminary surveys calculate that this was at least an EF-4 tornado.
It was a mile-wide at times with winds ranging from 160 to 200 miles per hour.
Businesses and even an elementary school was literally flattened within a matter seconds.
In a video emergency crews can be seen rushing to the scene trying to rescue students and staff who were trapped inside Briar Elementary School in Moore. The massive tornado ripped through the school destroying the building. Officials will not confirm how many are injured or missing.
Homes and buildings have been reduced to rubble in the city south of Oklahoma City. A man, a woman, and a child were found dead at a local 7-Eleven store.
The massive tornado turned homes and building to rubble in the city of Moore. Residents are speaking out on the nightmare.
"Parked my truck at the 7-Eleven parking lot and just started heading in. we were pulling walls off of people, there were people crawling in from anywhere and everywhere. It was basically a war zone. There were couple individuals with spinal injury. As far as I'm concerned, last time I heard, that tow truck over there was towing an individual off out of his car and getting the wreckage off of him. There's been a lot of people messed up, screwed up, slashes, bruises, stuff like that," said Oklahoma resident Thomas Earsom.
Oklahoma Governor Mary Fallin declared an emergency for 16 Oklahoma counties because of the severe storms and flooding. This comes just a day after tornadoes hit the state -- killing at least two and injuring dozens of others.
As far as Moore goes, this isn't the first time a major tornado has leveled the town. It was about 14 years ago that an F-5 tornado ripped through Moore killing 36 people. The paths of both of these storms are very similar.
Congressman Tom Cole, of Moore, Oklahoma says that Monday's tornado appears more devastating than the F-5 that struck 14 years ago.