By Chris Cordt
4 June 2013
EL RENO, Oklahoma – The National Weather Service is calling the May 31st El Reno tornado the widest tornado on record at 2.6 miles wide.
That breaks the previous record of 2.5 miles held by the F-4 tornado that struck Wilber-Hallam, Nebraska on 22 May 2004.
The NWS has upgraded the El Reno tornado to an EF5 rating with wind of 296 miles per hour.
The upgrade was based on information from a Doppler On Wheels (DOW).
EF5 is the highest possible rating for tornadoes on the Enhanced Fujita scale.