From The Vault: November 17th, 2013 Tornado Outbreak

May 31st, 2013 will always be remembered as one of the most devastating tornado outbreaks in the history of the United States. That day, the small town of El Reno, Oklahoma was hit by an EF5 tornado that had a maximum width of 2.6 miles, the widest tornado ever recorded. The sheer size and power of the tornado left scientists and meteorologists in awe and sparked curiosity about the causes and effects of such a catastrophic event. How could a single storm system produce such a massive and destru

11 tornado touchdowns confirmed in Chicago area and Illinois, according to NWS. Here's where and how strong they were

KOCO Remembers: Massive EF5 tornado hits Moore on May 20, 2013