The Enhanced Fujita Scale provides an estimated range of a tornado's wind speeds, based on the tornado's damage.

One question you may ask yourself is how tornadoes are measured? It's with the Enhanced Fujita (EF) scale which is gives a ...

The FOX23 Severe Weather Team is bringing you "Storm Smart," a special looking back at the record breaking number of tornados ...

Researches found little evidence that tornadoes were getting weaker. Instead, it appears that a subjective tornado grading system is to blame.

Windspeeds reached 85 mph for about two minutes as the tornado traversed about a mile just west of the 605 Freeway.

Video shows the moment a tornado touched down in Pico Rivera early Thursday morning, leaving behind a trail of destruction. At around 3:15 a.m., the tornado, an EF-0 on the Enhanced Fujita scale ...

A rare sight in California - a tornado - slammed a Pico Rivera neighborhood early Thursday during the state’s latest storm.

After a powerful winter storm flooded roadways, dropped hail, and even brought a tornado to Southern California on Thursday, ...

An EF0 tornado touched down in Los Angeles County early Thursday morning, causing damage to a Pico Rivera neighborhood, the ...

The original Fujita scale, developed in the 1970s, was used until 2007, when it was updated and replaced by what is now known as the Enhanced Fujita (EF) scale. The numerical ratings of tornadoes were ...

Parts of the city had been urged to evacuate as a powerful system brought rain and snow up and down the state.