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Cirrocumulus stratiformis is a type of cirrocumulus cloud. The name cirrocumulus stratiformis is derived from Latin, meaning "stretched out". [2] Cirrocumulus stratiformis occurs as very small cirrocumulus clouds that cover a large part of the sky. This type of cloud always occurs in thin layers. [3]
Cirrocumulus stratiformis undulatus (V-17) Cirrocumulus lenticularis undulatus [12] (V-18) Lacunosus Cirrocumulus with large clear holes; normally associated with stratiformis and castellanus species (also with cumuliform floccus species). Stratocumuliform lacunosus Cirrocumulus stratiformis lacunosus (V-19) Cirrocumulus castellanus lacunosus ...
Cirrocumulus is one of the three main genus types of high-altitude tropospheric clouds, the other two being cirrus and cirrostratus. [3] They usually occur at an altitude of 5 to 12 km (16,000 to 39,000 ft), however they can occur as low as 10,000 ft (3.0 km) in the arctic and weather reporting standards such as the Canadian MANOBS suggests heights of 29,000 ft (8.8 km) in summer and 26,000 ft ...
Stratocumuliform genus-types (cirrocumulus, altocumulus, and stratocumulus) that appear in mostly stable air with limited convection have two species each. The stratiformis species normally occur in extensive sheets or in smaller patches where there is only minimal convective activity. [78]
Cirrocumulus lacunosus, also known as Cirrocumulus lacunar or Cirrocumulus lacunaris, [4] is a variety [1] of cirrocumulus cloud. The term lacunosus is from Latin, meaning "full of hollows". [5] Cirrocumulus lacunosus is a relatively rare, fleeting [6] cloud form that occurs as a cloud layer with circular gaps or holes in it.
In cloud nomenclature, any funnel- or inverted-funnel-shaped cloud descending from cumulus or cumulonimbus clouds is technically described as an accessory feature called tuba. The terms tuba and funnel cloud are nearly but not exactly synonymous; a wall cloud, for example, is also a form of tuba. Funnel clouds associated with supercells usually ...
Cirrocumulus castellanus is an indicator of atmospheric instability at the level of the cloud. [4] The clouds form when condensation occurs in the base cloud, causing latent heating to occur. This causes air to rise from the base cloud, and if the air ascends into conditionally unstable air, cirrocumulus castellanus will form.
Contrails, and other clouds caused directly by human activity, are called homogenitus. [ 3 ] Depending on the temperature and humidity at the altitude where the contrails form, they may be visible for only a few seconds or minutes, or may persist for hours and spread to be several kilometres/miles wide, eventually resembling natural cirrus or ...