Meteorologist: "Worst In History" – http://houston.cbslocal.com/2013/05/20/meteorologist-worst-tornado-damage-in-the-history-of-the-world/

Source: MONSTROUS 2 MILE WIDE EF5 TORNADO ROARS THROUGH OKLAHOMA MONDAY DEVISTATING REGION (MAY 21, 2013) (Youtube).

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