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. These clouds usually form in groups.

Lenticular clouds are a visible sign of mountain waves in the air, according to the Met Office. However, these waves can be present beyond the clouds and may exist even when no clouds are formed.

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 ...

BILOXI, Miss. (WLOX) — Fallstreak holes, also known as “hole punch clouds,” were spotted in several parts of South Mississippi. How do they form?

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 ...

This is what Geo Engineering looks like.” Many also share a video of dark grey clouds above a beach in an unusual formation. However, the equipment used by HAARP would not be capable of creating a ...