The Fujita scale, and the revised Enhanced Fujita scale, are widely accepted scales used for rating tornado intensity. They ...

What causes dust devils & why are scientists studying them ... and the really big ones can reach a half mile high. But this isn't a mini tornado. It's a dust devil. - People always want to know ...

Dust devils are created by strong surface heating and typically last only a few minutes. The vortices are usually smaller and less intense than a tornado but, on average, reach between 500 and ...

One woman can be heard yelling, “oh my God” and “that’s a tornado.” Dust devils “are generally smaller and less intense than a tornado,” according to the National Weather Service.

Dust devils probably are a major contributor to ... And the really big ones can reach a half-mile high. But this isn't a mini tornado. It's a dust devil. People always want to know what is it ...

Not quite a tornado, a dust devil is a strong, well-formed, relatively short-lived whirlwind. And the Dust Devils' mascot has lots more personality than a lot of tornado logos out there — it ...