The rare type of cloud, whose name is Latin for "roughness," was first observed in 2006 by an amateur cloudspotter in Iowa.

Weather watchers were treated to an exceptionally rare display on Friday evening as rare cloud formations filled Vancouver ...

Roll clouds are not and do not produce tornadoes. These are considered arcus clouds, like a shelf cloud. Shelf clouds are ...

A rare cloud formation called the Taieri Pet was seen over New Zealand. NASA's satellite captured an image of this cloud. The ...

Stunned sky-watchers in the US state of Wyoming have snapped photos of a rare cloud formation crashing across the horizon like ocean surf. "This was special and I immediately knew I needed to ...

CBC science specialist Darius Mahdavi confirmed the asperitas cloud, saying, "I've only properly seen them once before....but ...

Short-lived atmospheric phenomenon is known as a fluctus cloud formation, Hong Kong Observatory says in post capturing the ...

Oct 25, 2020 Oct 25, 2020 Updated Oct 28, 2020 0 Axel Hildebrandt took this picture in Upper Saucon Township, Lehigh County. Axel Hildebrandt took this picture in Upper Saucon Township, Lehigh ...

A rare cloud formation that is sometimes confused with a UFO has been reappearing in the same spot in New Zealand for over 100 years. A recent NASA photograph showed the smooth white cuttlefish ...

“We usually see them around the southern plains, but they’re super rare.” Formerly known ... when another distinctive ...

opens new tab describes Undulatus Asperatus clouds as a rare cloud formation that appears dark and storm-like but tends to dissipate without a storm forming and that the name translates ...