Large cumulous clouds signify the beginning of a thunderstorm, with lightning becoming more possible as the clouds become darker and more anvil-shaped.

A rare roll cloud was seen passing over several beaches in Portugal on Sunday, June 29. The phenomenon features a cloud that ...

Memorizing all of the past Wordle answers is nearly impossible – after all, there have now been more than 1,400 of them. But knowing what's gone before is important, because Wordle answers don't ...

Tuesday, a funnel-shaped cloud over Atlanta raised concerns about a tornado. But it was just a harmless scud cloud. The National Weather Service says scud clouds are ...