It may be hard to believe that with an average of 1,200 tornadoes each year in the United States, we haven’t seen an EF5-rated twister in more than 11 years. But that doesn’t mean the number ...

Sign up for the Morning Brief email newsletter to get weekday updates from The Weather Channel and our meteorologists. It may be hard to believe that with an average ...

The scale runs from EF0 up to EF5 for the most damaging twisters.) Maps of patterns of tornadogenesis, or the process by which a tornado forms, show that between 1951 and 1985, tornado formation ...

Eleven years later, it remains the most recent tornado to be rated EF5, the strongest possible rating on the Enhanced Fujita Scale. The 11-year gap is the longest since official U.S. records began ...

They still pose a threat. The last tornado rated an EF5 on the 0 to 5 Enhanced Fujita scale for tornado strength formed in central Oklahoma on May 20, 2013. Along its devastating path from ...

May 20, 2013, marks the last time the United States was hit by the worst type of tornado. On that date, a monster EF5 tornado tore a 17-mile path through the Oklahoma City suburbs, creating "40 ...

Twelve years ago, the last EF5 tornado to hit the United States tore through Moore, Oklahoma. The violent storm carved a path of destruction through neighborhoods, killing 24 people and injuring ...