A tornado bore down near the Oklahoma City metropolitan area Monday afternoon, part of a series of severe storms that struck the Midwest this week.

The meteorologist at KFOR in Oklahoma City said the violent and large tornado had a debris ball up to two and a quarter miles wide around 4:15 EST.

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 on the ground for more than 20 miles. That tornado eventually dissipated, but the damage left behind was likened to a war zone after an atomic explosion. Concrete slabs marked the spots where houses once stood.

For stories related to the May 20 tornado, click here.

For a live blog documenting the event in Oklahoma, visit our affiliates, KFOR.