This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The troposphere, the Earth’s lowest layer, ...

CEDAR RAPIDS, Iowa (KCRG) - As storms moved out of eastern Iowa on Sunday evening, some unusual cloud formations developed on the clouds that were left over. Mammatus clouds are the billowy clouds ...

Severe weather is possible across parts of Texas on Friday afternoon and evening, with the primary threats being large hail, strong winds and heavy rainfall.

In the summer months, the skies can fill up with a variety of interesting and unusual cloud formations, especially during stormy weather. Clouds are more than just picturesque features of the sky; ...

Add Yahoo as a preferred source to see more of our stories on Google. With Michigan's changeable weather, residents get to see a lot of different cloud formations — fluffy cumulus, wispy cirrus and ...