The largest tornado in recorded history was Friday's May 31, 2013 EF-5 tornado in El Reno, Oklahoma, the National Weather Service in Norman, Oklahoma announced on Tuesday.

The massive El Reno tornado in Oklahoma in May 2013 grew to 2.6 miles wide and claimed eight lives. ... “That sub-vortex had a structure unlike anything we’ve ever seen, ...

The El Reno tornado had several smaller internal vortices within the main circulation, Smith said, and they were racing along at up to 185 miles an hour. These miniature tornadoes did not hit any ...

The National Weather Service upgraded the El Reno, Oklahoma tornado that hit late last week, killing 18 people, to an EF-5 tornado — the highest, most dangerous, rarest classification.

New surveillance video gives a different perspective to the El Reno tornado. The camera was mounted on the Shell gas station at I-40 and Banner Road. The store suffered heavy damage in the tornado.

The tornado that touched down near El Reno, Okla., last week has been upgraded to an EF-5, with winds near the surface of 296 mph, the National Weather Service in Norman said Tuesday.

The American Meteorological Society has released a preliminary version of its after-action report on the El Reno, Oklahoma, tornado, which killed noted storm chaser Tim Samaras, his son Paul and ...

Four storm chasers died in the El Reno, Oklahoma, tornado one year ago this weekend -- a demonstration how unpredictable that historic storm was. Skip to content NOWCAST KMBC 9 News at 10PM ...

RICHMOND, Va. (WTVR) – The deadly tornado that tracked through rural areas of El Reno, OK on Friday, May 31, 2013 is unfortunately one for the record books. Not only was the tornado’s life ...