The scale uses damage as a proxy for tornado strength and ranks tornadoes from a 0 (weakest) to 5 (catastrophic). But because ...

The National Weather Service determined that the strength of three out of the four tornadoes that touched down in Colorado on ...

A series of outbreaks in March, April and May have produced hundreds of tornadoes, with five of them rating as violent EF4s.

MILWAUKEE - Tornadoes are categorized on what is called the Enhanced Fujita Scale or EF Scale. The Enhanced Fujita Scale ...

Following tornadic storms Sunday in Denver, the National Weather Service will conduct storm surveys to determine their ...

The tornadoes that struck the Kansas towns of Plevna and Grinnell on Sunday were EF3s, the National Weather Service says. No ...

Thankfully, Tuesday was a day with zero injuries and fatalities from severe storms. Unfortunately, that hasn't been the case ...

The National Weather Service has rated two of the four tornadoes that hit Colorado on Sunday as EF2. Those tornadoes hit the ...

CLEBURNE COUNTY, Ala. — The National Weather Service in Birmingham has confirmed that a tornado touched down in Cleburne County during May 21st storms. After surveying the damage, meteorologists ...

A seventh straight day of powerful thunderstorms and significant severe weather is ahead from the Midwest to Deep South.

From that assessment, the tornado is given a rating on the Enhanced Fujita Scale, or the EF scale. According to the NWS Wichita Warning Coordination Meteorologist Vanessa Pearce, it has been ...