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

NWS rated Monday's Woodville, NC tornado as a high-end EF-1 tornado. Here's a deeper dive into the Enhanced Fujita scale.

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

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

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

The batch of tornados that cut across the Southwest over the weekend destroyed homes in an Arkansas community that also faced ...

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.

The National Weather Service in St. Louis has confirmed three tornadoes hit the St. Louis area during Friday's storms, ...

In terms of strength of tornadoes, we're looking at some brief spin-up tornadoes, but an EF2 can't be ruled out for Friday and Saturday." According to the Enhanced Fujita Scale, an EF2 tornado packs ...