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 culprits ranged from dust storms and fires in the Southern Plains to tornadoes in the Mississippi Valley and the South.

Sunday morning's storm system prompted many warnings across the southeast. Damage survey done by the National Weather Service of Tallahassee confirms a tornado touched down in Mitchell County.

A tornado reduced homes in Paragould, Ark., to rubble — less than a year after another twister touched down on the same extact street.

The National Weather Service reports an EF-2 tornado that started in St. Clair County hit an estimated 120 mph in peak winds ...

The "Race Day" tornadoes of May 30, 2004, were a significant and destructive series of tornadoes that struck the state of Indiana in the United States. The event is often remembered due to the timing ...

A Pacific storm turned deadly when dry desert winds and Gulf moisture combined over the Plains to fuel dozens of tornadoes ...

It will take several days to survey the state. Several tornadoes ranging in strength from EF-0 to EF-3 have already been ...

Tornadoes are classified through the Enhanced Fujita, or EF, scale, which rates storms on a scale of 0 to 5 based on recorded ...

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