But few are fortunate enough to see Kelvin-Helmholtz clouds, which look like a pattern of ocean waves in the sky. Kelvin-Helmholtz clouds, also known as fluctus clouds, is a rare phenomenon that's ...

Have you ever wondered how clouds stay in the sky? Here's your answer, and by the way, the weight of an actual cloud might ...

Meteorologist Kaitlyn Jesmonth was getting ready for work when she happened to glance out her window. In the skies over Champaign, Illinois, were wonky, wavelike clouds — reminiscent of the ocean.

In Washington, the eastern parts of the state may provide the best views of tonight's lunar eclipse. See expected cloud cover percentages for the nation.

TAKAHASHI, Okayama Prefecture--A university lab is providing artificial intelligence-based probabilities on whether a sea of clouds will form around the “mountain castle in the sky” here.