Researches found little evidence that tornadoes were getting weaker. Instead, it appears that a subjective tornado grading system is to blame.

Tornadoes come in all shapes and sizes; however, a lesser-known but equally menacing phenomenon is a type of fast-developing ...

When it comes to severe weather, especially tornadoes, it helps to know how these storms form and what you need to do when ...

In some extreme cases, thunderstorms can spawn a derecho, a long-lived windstorm with gusts over 100 mph, strong enough to ...

One such tornado in Mississippi triggered a tornado emergency, the most urgent type of tornado warning, after radar indicated it was launching debris five miles into the air. The outbreak follows ...

NORFOLK, Va. — Have you ever heard of a QLCS tornado? Here's a look at what it is and how it compares to other types of tornadoes. A QLCS (Quasi-Linear Convective System) tornado is a type of ...

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 ...