The tornado that struck El Reno, Okla., Friday "is officially the widest known tornado in the U.S.," says the National Weather Service office in Norman, Okla., announcing today that at its widest, the ...

Although the 2013 tornado season to this point has been one of the slowest in the past 60 years, there were two extremely powerful tornadoes that did form in Oklahoma this past May. The first occurred ...

that the tornado that struck El Reno, Okla., on Friday was 2.6 miles wide was a jaw-dropper. Although an EF-4 twister that struck Hallam, Neb., on May 22, 2004, was estimated to be 2.5 miles wide, ...

State College, PA - According to the National Weather Service in Norman, Okla., the tornado, which struck the area near El Reno, Okla., was the widest on record at 2.6 miles. The NWS also upgraded the ...

A damaged sign lies outside the wreckage of Plaza Towers Elementary School, where seven children were killed when a tornado hit Moore, Oklahoma, in May 2013. (AP Photo/Charlie Riedel) A decade ago, ...

Two hours is all it took for the ominous clouds above to transform into a swirling mass of destruction. In the early evening of May 31, 2013, the widest tornado ever recorded — at 2.6 miles in ...

MOORE, Okla. (KFOR) – May 2013 is a month many Oklahomans will not soon forget. The May 20 th Moore tornado and the May 31 st El Reno tornado combined caused dozens of deaths, hundreds of injuries and ...

The El Reno tornado, Joplin tornado and Tri-State tornado are among the biggest and most damaging twisters in U.S. history. Tornadoes can be more than a mile wide and have wind speeds greater than 300 ...

A National Weather Service official said Thursday that preliminary EF5 ratings of last week's tornado in El Reno have not been verified by storm damage on the ground. "I think that rating needs to be ...