The storm laid waste to scores of buildings in Moore, south of the city. Block after block of the community lay in ruins, with heaps of debris piled up where homes used to be. Cars and trucks were left crumpled on the roadside.
Dozens were injured and at least 24 people were killed by the storm.
The National Weather Service issued an initial finding that the tornado was an EF-4 on the enhanced Fujita scale, the second most-powerful type of twister. It was later determined that the twister was an EF-5.
Watch a video time lapse of the tornado as it ripped through the Oklahoma City area below.