depression, although this is often hidden by lower clouds. Towering altocumulus, known as altocumulus castellanus, frequently signals the development of...

downdrafts within the cloud. Genitus mother clouds Altocumulus cumulogenitus Altocumulus cumulonimbogenitus Mutatus mother clouds Altocumulus cirrocumulomutatus...

In meteorology, Altocumulus castellanus or Altocumulus castellatus (ACCAS) is a cloud type named for its tower-like projections that billow upwards from...

Nacreous clouds that form in the lower stratosphere sometimes have lenticular shapes. There are three main types of lenticular clouds: altocumulus standing...

The altocumulus undulatus is a mid-level cloud (about 8,000–20,000 ft or 2,400–6,100 m), usually white or grey with layers or patches containing undulations...

cloud. Like altostratus, altocumulus are composed of a mixture of water droplets, supercooled water droplets, and ice crystals. Although altocumulus clouds...

anvil top. There are also cumuliform clouds of limited convection that comprise stratocumulus (low-étage), altocumulus (middle-étage) and cirrocumulus (high-étage)...

cirrocumulus, altocumulus, and stratocumulus. A newly recognized species of stratocumulus or altocumulus has been given the name volutus, a roll cloud that can...

Altocumulus lacunosus is a type of altocumulus cloud. The term lacunosus is from Latin, meaning "full of gaps". This type of cloud appears as holes present...

observed in altocumulus, cirrocumulus, lenticular, and cirrus clouds. They sometimes appear as bands parallel to the edge of the clouds. Iridescence...

those in altocumulus, and the whole being at a lower height, usually below 2,000 metres (6,600 ft). Weak convective currents create shallow cloud layers...

Altocumulus stratiformis is the most common species of the Altocumulus genus of clouds. They tend to form broad layers of individual, cell-like clumps...

A mackerel sky is a term for clouds made up of rows of cirrocumulus or altocumulus clouds displaying an undulating, rippling pattern similar in appearance...

August 2021. Altocumulus floccus (meaning tuft of wool, fluff, or nap of cloth...) "Altocumulus floccus". International Cloud Atlas. "Altocumulus floccus (Ac...

that can appear in cirrocumulus or altocumulus clouds. The holes are caused by supercooled water in the clouds suddenly evaporating or freezing, and...

Altocumulus volutus is a type of altocumulus cloud. This cloud type has the appearance of a single, small, horizontal, rolling line, it is relatively rare...

illumination levels and cloud thickness can lead to dramatic visual effects. Occurs mostly with Stratocumulus and Altocumulus. On June 20, 2006, Jane...

of high cloud taking on a stratocumuli form structure as a result of high altitude convection. A high layer of white or light grey altocumulus of a particular...

(stratocumulus, altocumulus, and cirrocumulus) clouds have the least in common with nimbostratus. Nimbostratus virga Cumulonimbus List of cloud types "cloud". Columbia...

Translucidus is a cloud variety. It appears in altocumulus, altostratus, stratus, and stratocumulus clouds. The cloud variety is very recognizable, with...

during rock slides). A convection cell is most notable in the formation of clouds with its release and transportation of energy. As air moves along the ground...

several kilometres/miles wide, eventually resembling natural cirrus or altocumulus clouds. Persistent contrails are of particular interest to scientists because...

Perlucidus is a cloud variety that generally appears in only two cloud types, those being altocumulus and stratocumulus. Perlucidus cloud is easily recognizable...

formed from altocumulus castellanus or stratocumulus castellanus, which are forms of cumulus castellanus. The congestus species of cloud can only be found...

several miles across, coming to resemble naturally formed cirrus or altocumulus clouds. A contrail from an airplane flying towards an observer can create...

is highly unstable, cumulonimbus clouds producing thunderstorms commonly form along the front. Anvil cirrus clouds may spread a considerable distance...

A/A Air to air TACAN function A/C Aircraft AC Altocumulus Cloud type ACC Altocumulus castellanus Cloud type ACC Area Control Centre A/D Aerodrome ACT...

cloud types and altitude levels: Low-level stratocumulus and stratus can cause icing at a temperature range of 0 to -10 °C. For mid-level altocumulus...

Opacus is a cloud variety that is found in stratocumulus, altocumulus, altostratus, and stratus cloud types. This cloud variety has a dark and opaque...

each other. At formation, the cirrus floccus clouds are bright white and can be mistaken for altocumulus clouds; however, after a few minutes, the brightness...