Clouds form when water vapor—an invisible gas in the atmosphere—sticks to tiny floating particles, such as dust, and turns into liquid water droplets or ice crystals. In a newly published study, we ...

Rare and distinct cloud formations that resemble rippling ocean waves were recently spotted in the sky over New Hampshire. The cloud formations, known as Undulatus Asperitas, have wave-like structures ...

A Channel Islands National Park ranger on Wednesday boated across the channel beneath a sky that appeared wavier than the ocean. The agency featured two images of the surreal-looking cloud formations ...

With Michigan's changeable weather, residents get to see a lot of different cloud formations — fluffy cumulus, wispy cirrus and dark, threatening cumulonimbus — and recognizing what weather each type ...

COLUMBIA, S.C. — Early Wednesday morning, parts of the Columbia area saw rain to start the day with scattered showers and storms. This made for a rainy morning commute for many individuals. As the ...

(WLUK) -- With all the active weather Northeast Wisconsin has had over the last few days, we've seen plenty of cool clouds overhead. So, what was causing those interesting clouds formations? Well, ...

PHOENIX — Have you seen clouds that look like something from another world? No, it's not aliens or UFOs, there is a scientific explanation for these cloud formations that look like flying saucers.

We have big-sky cloud formations to enjoy, ponder and maybe hide from. They range from interesting to downright scary, and it is fun to recall some clouds that made me skedaddle faster than greased ...

MOLINE, Ill — Perhaps one of the strangest appearing things in the sky you'll ever witness, this unique cloud formation comes in different sizes and shapes. It is, however, usually caused by the same ...

Severe weather season in Texas has arrived and San Antonio is bracing for a couple of stormy days on the horizon this week. Knowing how thunderstorms develop and identifying cloud formations can help ...

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 ...