Roll clouds can form along cold fronts and sea breezes in the absence of thunderstorms, but during unsettled weather, roll ...

Roll clouds can also give shape to a gravity wave in the atmosphere causing rising and falling air, known scientifically as an undular bore. Latest stories Australian Associated Press ...

On exception though is the famous and regular roll cloud, named the Morning Glory, found over Cape York Peninsula. It forms when sea breezes collide from the Gulf of Carpentaria and northern Coral ...

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.

Weather enthusiast Adrian Linares was watching his webcam in Lake Worth, Florida, on Tuesday morning when something unusual happened: Three roll clouds moved over his house. Roll clouds mark a sharp ...