Rachel says she was driving down Highway 18 on the way to the Oregon Coast when she came upon this massive dust devil in a farm field very close to Dayton, Oregon.
We have dust devils each summer (and even during stretches of dry weather not in the summer) that put on a show. But this is the best video I’ve seen, myself, in years!
How Dust Devils Form
Here’s a really simple chart that explains what happens. When I visit schools, I use a pencil parallel to the desk then show it tilting up. Once it is up, the dust devil acts like a vaccum cleaner–sucking up light, dry dust and dirt and pulling it toward the sky. This same thing happens other times–but if the soils moist and heavy–not much may get picked up. So the ‘dust devil’ may remain largely invisible even though the same column of air is up and spinning around!