A deadly severe weather outbreak spawned at least one tornado in 22 states from May 15-21. Among the hardest-hit states were ...

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 ...

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 ...

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 ...

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 ...

The latest severe weather forecasts dramatically increase Lower Michigan's thunderstorm severity for this evening. The most ...

Based on estimated wind speeds and damage, tornadoes can range on a scale from EF0 to EF5. Feeling out of the loop? We'll catch you up on the news you need to know with the Chicago Catch-Up ...

MOLINE, Ill. — A new study published by the American Meteorological Society has shed light on a puzzling phenomenon: The United States has not logged an EF5 tornado, the most violent category ...

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The Twister: Caught in the Storm tells the story of the destructive 2011 EF5 tornado in Joplin, Missouri, and while the tale is well-known, many don't know about how it led to an outbreak of a ...