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.

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

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 system is to blame.

Firefighter Josh Pate was on duty Saturday when a tornado tore through his home, where his wife and children prayed for safe ...

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

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

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

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 ...