The Portuguese Institute of the Sea and Atmosphere (IPMA) has explained that the rare meteorological phenomenon which was ...

Satellite imagery showed rows of puffy, towerlike clouds known as altocumulus castellanus forming over Los Angeles County — a telltale sign that the atmosphere is primed with the ingredients for ...

These unique clouds can be found amongst two cloud types: altocumulus and stratocumulus. These two cloud types are low to mid level clouds and are common ahead of storms, but added turbulence can ...

The meteorological name for the clouds is altocumulus lenticularis. Lenticularis is Latin for lens-shaped, which aptly describes their appearance. For them to occur in the UK we need to be on the ...

These clouds will gradually thicken and lower, transitioning into altocumulus or altostratus clouds. They may develop into cumulonimbus clouds, which indicate thunderstorms along the front.

An eerie UFO-shaped cloud stunned residents in Australia. Harry Reay and his friends witnessed the southerly buster roll cloud forming in the clear skies over Cronulla in Sydney, New South Wales ...

Altocumulus clouds act as a visual cue for a changing weather pattern. These are the types of clouds that appear ahead of a strong cold front and are a common sight. They indicate the presence of ...

John Wheeler is Chief Meteorologist for WDAY, a position he has had since May of 1985. Wheeler grew up in the South, in Louisiana and Alabama, and cites his family's move to the Midwest as ...

Though it sounds like alien sci-fi, there's a perfectly reasonable explanation: the peculiar cloud is an altocumulus standing lenticular cloud (ASLC), according to NASA, which is created when ...

In 2005, Gavin Pretor-Pinney travelled from England to Australia just to see a cloud. The cloud in question was a volutus, but locals in North Queensland call it ‘morning glory’. You can see ...

This is false. Experts told AAP FactCheck they were not created by humans, but were naturally forming altocumulus volutus 2, or roll clouds, that contained water droplets. A Facebook post 3 shared ...

“These are what we call altocumulus volutus – that’s the Latin name,” Christie Johnson, a senior meteorologist at the Bureau of Meteorology, explained to Channel 9.