The Greenfield storm comes exactly 11 years and one day after a catastrophic tornado struck Moore, Okla. That was the last EF5 tornado on ... an ultrasensitive radar on a truck — was collecting ...

Tornadoes, the swirling tempests of nature, have fascinated and terrified humanity for centuries. These phenomenal weather ...

The city of Moore was the epicenter of an EF5 tornado Monday, May 20, that decimated neighborhoods in the Oklahoma City area and took the lives of some of its citizens. Teams are still evaluating ...

A quirky aspect of the way we measure twisters helps explain why there hasn't been a top-tier-rated tornado in 12 years.

May 20, 2013, marks the last time the United States was hit by the worst type of tornado. On that date, a monster EF5 tornado tore a 17-mile path through the Oklahoma City suburbs, creating "40 ...

The last official EF5 tornado to hit the U.S. was the infamous 2013 Moore, Oklahoma, tornado. This violent tornado was on the ground for more than 40 minutes, carving a path of devastation more ...

It may be hard to believe that with an average of 1,200 tornadoes each year in the United States, we haven’t seen an EF5-rated twister in more than 11 years. But that doesn’t mean the number ...