The scale assesses the damage a tornado does to trees, buildings and homes. Scientists then use that information to calculate its probable wind speed. The rating system ranges from F0, the weakest ...

Most tornadoes form from severe thunderstorms. Hurricanes can also produce tornadoes. Tornado winds may exceed 300 miles (483 kilometers) per hour. Tornadoes can lift cars, mobile homes and ...

We saw multiple Facebook users posting that they successfully received public safety alerts warning of the weekend’s tornadoes. The NOAA Storm Prediction Center also shares information about ...