A Stunning Dust Storm Sweeps Across the U.S.

A December tornado outbreak is a pretty wild occurrence. But less than a week later, it was upstaged by what will go down as one of the most unheard-of days of weather in the U.S. A powerful storm screaming out of the Rockies met with extreme warmth over the central U.S. to unleash all manner of hell. Straightline winds roared to more than 100 mph (161 kmh), dust whipped up into the sky, and fires ignited across the prairies. The day ended with a derecho barreling across Michigan, knocking out power to hundreds of thousands. This type of setup is extremely rare because winter doesn’t have the heat to supercharge storms. But something is… changing.