Mount Lewotobi Laki Laki’s eruption prompted evacuations and flight cancellations to and from Bali and other destinations.

At other times, moisture and wind patterns can produce quirky and fascinating cloud patterns such as one called “mackerel sky.” “Mackerel sky is typically formed by altocumulus clouds ...

Aurora chaser and photographer Harlan Thomas ( @TheAuroraGuy) was about 18.5 miles (30 kilometers) north of Calgary along a ...

The massive ash cloud was moving in a west-southwest direction, according to the agency, known as INGV. The dramatic scene at Etna's southeast crater was caught on multiple webcams, spreading ...

A large, swirling cloud formation over the sky of Vinh city this morning. Photo: Quoc Huy. "Never before have I seen such huge cloud formations, and it's quite worrying as the typhoon approaches," ...

After a tornado passed through, mammatus clouds appeared, lighting up the sky like nature’s dramatic finale. English team leader and news writer Sally Shakkour is the leader of the English news ...

Fellow club member Kieran Delaney also shared a photo of them, while other Camera Club snappers also took shots of the dramatic morning sky. According to the Met Office, mammatus clouds are some ...