How do harmless puffy white clouds grow into towering, potentially dangerous cumulonimbus thunderstorms? On their surface, clouds appear to be an odd contradiction of nature — light enough to float on ...

Take a look at this amazing video out of Wyoming. Storm chasers took the timelapse Sunday night of a supercell thunderstorm forming in the northeast part of the state. Meteorologists know them as "low ...

A daily risk of severe thunderstorms will continue to shift eastward toward the Appalachians in the coming days. The main threat will be from high wind gusts, AccuWeather meteorologists advise. The ...