Tornadoes are rated on the EF scale based on the damage that they cause, but meteorologists only have 28 indicators to use ...

A catastrophic EF-5 tornado tore through Greensburg, Kansas, with winds estimated at over 200 miles per hour and a path ...

Measuring tornado winds at the ground level is notoriously difficult. Instead, meteorologists look at the damage, using on or more of 28 key indicators to determine how strong the tornado likely was ...

GRAND RAPIDS, Mich. (WOOD) — On April 3, 1956, an F5 tornado swept through Ottawa County, leaving a path of destruction in its wake. Seventy years later, tracking tornadoes has vastly improved and so ...

The April 2011 Super Outbreak was one of America's worst tornado outbreaks in modern history, capping off a historic month of twisters in the U.S. Fifteen years ago, the April 25-28, 2011, Super ...

Researchers are preparing the first major update to the Enhanced Fujita (EF) tornado rating scale in years, aiming to add rural-specific damage indicators like grain bins and silos. The move follows ...