AUSTIN (KXAN) – They’re miniature tornadoes with winds of up to 75 mph, but they form when there isn’t a cloud in the sky — dust devils. In this First Warning Weather University lesson, chief meteorologist David Yeomans explains the science behind this phenomenon.

What you’ll learn in this lesson:

  • Why wind is bad for a dust devil?
  • Why dust devils rotate?
  • Where you can find dust devils on other planets?

Learn more about the weather:

We also have looked at the science behind tornadoes and hurricanes. If you’re curious about why hurricanes hit the US, we’ve also explained why they take the paths they do.