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

The violent tornado tore through Moore, Oklahoma, on May 20, 2013, killing 24 people and injuring dozens more.

In a spring of historic tornado outbreaks, a single late May tornado in southwest Missouri was the mic drop on a truly ...

Officials in Kansas and Texas were evaluating damage on Monday after tornadoes touched down overnight, just days after more ...

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

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 ...

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 ...

The Enhanced Fujita scale rates tornadoes from EF0 to EF5 based on damage ... of the University of Chicago, in 1971 introduced the Fujita Scale, which rates tornado intensity based primarily ...

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 ...

A record-breaking 27 tornadoes hit the Chicago area on July 15 toppling thousands of trees, crushing parked cars and leaving thousands without power. It’s the highest number of tornadoes ...