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 ...

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

A quirky aspect of the way we measure twisters helps explain why there hasn't been a top-tier-rated tornado in 12 years.

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

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

Parts of Mississippi are at risk of tornadoes, large hail, and damaging wind gusts up to 70 miles per hour later this week.

Tornadoes are classified on the Enhanced Fujita scale, which ranges from EF0 to EF5. Originally created by famed tornado researcher Ted Fujita, the scale takes into account estimated wind speeds ...

Residents were urged to seek shelter after a tornado caused damage in Seminole County, Florida, the National Weather Service ...

Aerial video taken after an EF-2 tornado ripped through a Florida neighborhood north of Orlando shows one home torn to pieces and old oak trees ripped from their roots along a normally quiet community ...

Tuesday’s early-morning Ada area tornadoes caused widespread damage. Damage surveys are preliminary, but the National Weather Service has tentatively rated both the Ada tornado and the Union Valley ...