(CNN) — The National Weather Service has increased the damage rating of the tornado that struck El Reno, Oklahoma, on May 31 to EF-5. The weather service has also determined that the tornado was 2.6 miles wide, making it the widest U.S. tornado on record.
Posted at 1:03 PM, Jun 04, 2013
and last updated 2013-06-04 13:03:42-04
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