Friday’s El Reno tornado upgraded to EF5 Twister was widest ever in the United States Death toll at 19; Four people missing NORMAN - Meteorologists know Friday's tornado in the El Reno area was ...

The most extreme tornadoes have winds over 200 mph and can measure over a mile wide, and it has been over a decade since the last EF5 has struck the United States.

On May 13, 2013, the El Reno tornado reached a record width of 2.6 miles, with wind speeds over 200 mph, and tragically claimed eight lives.

Just two days after Joplin, a May 24-26 outbreak of 186 tornadoes killed 18 in the Plains and South, including an EF5 tornado through El Reno, Pedmont and Guthrie, Oklahoma.

What he sees, when he does at last see it, is something that Tim Samaras has never seen before and will never see again. It ...

EL RENO, Okla. — A destructive tornado struck the Oklahoma City suburb of El Reno late on Saturday, killing at least two people and demolishing a motel and destroying much of a trailer park and ...

The violent tornado tore through Moore, Oklahoma, on May 20, 2013, killing 24 people and injuring dozens more.

The documentary The Twister: Caught in the Storm is constantly using the Enhanced Fujita scale when talking about the tornadoes featured in the film, so here is how the EF scale works and how many ...