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.

The tornado that struck El Reno, Okla., on Friday night is believed to be the widest on record in the United States at 2.6 miles across, the National Weather Service reported on Tuesday.

The El Reno storm was the widest recorded tornado, 2.6 miles, in United States history. The EF5 twister was on the ground more than 16 miles before lifting.

A strong storm hit El Reno Sunday night, possibly producing a damaging tornado. News 9's Jennifer Pierce was near Northwest 10th Street and Cimarron Road Monday morning, finding damaged homes ...

Evolution of the record-breaking tornado The first severe storms of the day began to fire in the late afternoon with the El Reno tornado touching down at 6:03 p.m. CDT.

The National Weather Service has upgraded the El Reno tornado from EF-3 to EF-5, the highest rating on the Enhanced Fujita Tornado Damage Scale, and named it the widest tornado ever measured. An ...

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 ...

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.

EL RENO - "My love, we're going to die." Maria Pol Martin, 26, spoke those words to her husband Friday, seconds before the EF5 tornado pulled her and their newborn son from the family's minivan ...

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.

A strong storm hit El Reno Sunday night, possibly producing a damaging tornado. News 9's Jennifer Pierce was near Northwest 10th Street and Cimarron Road Monday morning, finding damaged homes ...