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

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

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...

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

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...

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...

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

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

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

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...

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

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

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...

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

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

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

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...

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

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

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...

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

front, the cirrus clouds spread out into cirrostratus, which then thicken and lower into altocumulus and altostratus. The next set of clouds are the rain-bearing...

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

appearance of precipitation which doesn't reach the ground Fallstreak hole, a large circular gap that can appear in cirrocumulus or altocumulus clouds...

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

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

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...

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

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...

are shown against a setting sun that intensely colors the dramatic altocumulus clouds. Church scholar John K. Howat describes the painting as "one of his...