As for the numbers on the scale, those describe the wind speed for tornadoes, and it uses 28 damage indicators (DIs), such as ...

Despite the destruction and death toll, this ended up being one of the most historically significant tornadoes for the ...

Wednesday's night's twister was the state's 29th tornado so far this year. Most have been weak spin-up tornadoes during ...

More than 10 tornadoes were recorded in central Illinois on Wednesday, according to the National Weather Service. Find out where.

Ratings go from EF-U to EF-5. MILWAUKEE - Tornadoes are categorized on what is called the Enhanced Fujita Scale or EF Scale. The Enhanced Fujita Scale became operational on February 1 ...

Meteorologists do this using a scale called the Enhanced Fujita, or EF, scale. The tornadoes that hit portions of the Denver metro region on Sunday were significant. Many homes were damaged or ...

Once they estimate the wind speed that could’ve caused the damage, using ground reports and Doppler radar data, they can then establish an Enhanced Fujita scale rating for that tornado.

The National Weather Service has confirmed that a funnel cloud spotted in Teller County west of Woodland Park on Tuesday, ...

Five ‘strong’ EF3 tornadoes tore through Kansas on Sunday night. While the tornadoes may have had winds close to 200 mph, they passed over largely rural areas.

A rare high-altitude tornado touched down in Pike National Forest near Divide in Teller County Tuesday, downing trees and ...