Clouds get their shapes by the air that surrounds them. We have all experienced those days when the clouds seem like a blanket covering the sky. Just a solid grey, flat cloud hovering in the sky.

FARGO — Although a rumble of thunder is occasionally possible during a winter storm, the big cumulonimbus clouds of summer will likely be gone from our sky until spring weather returns. From now ...

FARGO — The big, fluffy cumulonimbus clouds of summer will be gone from our sky until spring weather returns. From now through most of February or into March, the clouds in our sky will be almost ...

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 ...

GRAND RAPIDS, Mich. (WOOD) — After last week’s gorgeous weather, Storm Team 8 had several people ask, “why do some clouds have flat bottoms and puffy tops?” The only clouds that do this are cumulus ...

NORFOLK, Va. — Spotting a cumulus cloud is pretty easy. The clouds resemble pieces of cotton candy, but why are cumulus clouds fluffy and not flat? To fully understand why, we need to start with the ...