Mark Manson

El Reno... the biggest tornado in history. A storm chasers worst nightmare... On May 31, 2013, a massive EF3 tornado touched down near El Reno, Oklahoma. It rapidly expanded to an unprecedented width of 2.6 miles, making it the widest tornado ever documented. At one point the tornado was classified as an EF5 but was later downgraded to an EF3. El R