Incredible Mammatus Clouds and Crazy Sky in Upper Michigan - July 23, 2013

Strange round, orange clouds were spotted over the Michigan town of Iron Mountain, a US city, making the sky appear "on fire" and leading residents to worry that wild weather was coming.

Resident Jason Asselin: "All of a sudden it got very yellow outside, it felt strange and mysterious. Then it slowly looked very orange, it was the craziest thing I have ever witnessed over my head".

"These clouds looked like "Bubble Cups" but in meteorology terms they are called Mammatus clouds. They are extremely rare in this part of the country and many people have never seen anything like it before".

The mammatocumulus that formed over Iron Mountain made everything take on strange coloration. Greens looked more green, blues more blue, and so on.