Social media users reacted to the video, with one calling it "Breathtaking". Another user wrote, "That's an incredible shelf cloud formation - looks almost apocalyptic." ...

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

Altocumulus: White and gray, patchy clouds that are layered, sheet-like in the sky and generally composed of plates, rounded masses or rolls. They may be partly fibrous or diffuse and may or may ...

Altostratus: Gray or blue-gray clouds that often blanket the sky and obscure the sun, giving the sky a dull appearance. Altocumulus: Puffy, rounded clouds that may appear in groups or waves.

Altocumulus clouds are mid level clouds that are made of water droplets and appear as gray puffy masses.

UFO -shaped cloud displays have appeared over the sky in a rare sight for parts of the UK. Several UFO sightings over northern skies in the UK have previously been explained by these cloud formations.

Mid-level clouds Three different sub-categories of clouds all exist within the mid-level cloud umbrella: altocumulus (Ac), altostratus (As) and nimbostratus (Ns). As they are lower in altitude than ...

Fallstreak holes are circular or elliptical holes in altocumulus or cirrocumulus clouds. These clouds are made up of tiny water droplets at extremely cold temperatures. The water droplets do not ...

Mid-level clouds include altostratus and altocumulus, while at lower levels, you can observe stratocumulus, nimbostratus, and cumulonimbus clouds (with “nimbus” meaning precipitation in Latin).

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 ...

The term ‘asperitas’ was officially included as a new cloud ‘supplementary feature’ classification of main cloud types Altocumulus and Stratocumulus in 2017. We have previously debunked a number of ...