The Enhanced Fujita or EF Scale is the system meteorologists use to estimate tornado strength by examining the damage it ...

National Weather Service surveys city following severe storms ...

National Weather Service surveyed the Carolinas after severe storms ...

On Monday, the National Weather Service in Nashville surveyed damage caused by Sunday night's thunderstorms, and they found that tornadoes caused some of the damage.

On Saturday afternoon, the National Weather Service (NWS) confirmed that an EF-0 tornado touched down and traveled through ...

Tornadoes are among the most powerful atmospheric phenomena on Earth, capable of transforming calm skies into destructive ...

A deadly tornado that tore across southeastern North Dakota this summer has been upgraded to an EF5 with winds topping 200 mph (322 kph), the strongest classification of tornado and the first ...

Three EF-1's and four EF-0's were confirmed.

A tornado that caused widespread damage west of Knox Tuesday night was officially rated an EF-2 by the National Weather Service after storm survey teams assessed the destruction across the area.

Severe thunderstorms are likely Monday ahead of a strong cold front that could also bring widespread damaging winds and ...