A deadly tornado outbreak ripped through the Midwest and South over the weekend, leaving destruction, power outages and ...
Researches found little evidence that tornadoes were getting weaker. Instead, it appears that a subjective tornado grading system is to blame.
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 ...