Measuring tornado winds at the ground level is notoriously difficult. Instead, meteorologists look at the damage, using on or more of 28 key indicators to determine how strong the tornado likely was ...

The EF Scale is basically an updated version of the F-Scale. If you are around my age, you probably remember tornadoes being categorized on the Fujita Scale up to F5. But now, we use the Enhanced ...

BISMARCK, N.D. (KFYR) - Tornadoes are rated on the EF scale based on the damage that they cause, but meteorologists only have 28 indicators to use when estimating the wind speed within the tornado.

BUFFALO, N.Y. (WIVB) — When a tornado tears through an area, the main question after the fact is, "How strong was it?" That's where the Enhanced Fujita Scale, more commonly known as the EF scale, ...

OMAHA, Neb. (WOWT) - After a tornado event, the National Weather Service sends out teams to survey the damage and classify tornadoes using the Enhanced Fujita Scale. The scale ranges from EF-0 to EF-5 ...

Measuring the strength of a tornado can be difficult based on sight alone, and weather instruments could easily be damaged by the strong winds. The Enhanced Fujita scale (EF-Scale) looks at the damage ...