Cirrus uncinus is a type of cirrus cloud. Its name is derived from Latin, meaning curly hooks. Also known as mares' tails, these clouds are generally sparse in the sky, and very thin. Download high resolution version (1024x713, 77 KB)Cirrus Clouds Taken by User:Fir0002 File links The following pages link to this file: Cirrus cloud Categories: GFDL images ... A cirrus cloud is a type of cloud composed of ice crystals and characterized by thin, wisplike strands, often accompanied by tufts. ... Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ... Cumulonimbus capillatus incus floating over Swifts Creek, Victoria in Australia A cloud is a visible mass of condensed droplets or frozen crystals suspended in the atmosphere above the surface of the Earth or another planetary body. ... A typical daytime sky. ...
The clouds occur at very high altitudes, at a temperature of about minus 40-50 degrees Celsius. They are generally seen when a warm or occluded front is approaching. They are very high in the troposphere, and generally mean that precipitation, usually rain, is approaching. Altitude is the elevation of an object from a known level or datum. ... Celsius is, or relates to, the Celsius temperature scale. ... In meteorology, a weather front is a boundary between two air masses with differing characteristics (e. ... In meteorology, a weather front is a boundary between two air masses with differing characteristics (e. ... Atmosphere diagram showing the mesosphere and other layers. ... Rain falling Rain is a form of precipitation, other forms of which include snow, sleet, hail, and dew. ...
Cirrusclouds may form in isolated patches or cover a wide area of sky, depending on the distribution of moisture.
Nebulosis – the uplift that gives rise to the cloud is very gentle, and the resulting ice crystal layer is extremely thin, with vague edges that are difficult to discern and lack the texture common to other cirrusclouds.
Cirrus Kelvin-Helmholtz are quite common in the upper troposphere, but generally there is insufficient moisture present to generate cloud and render the visible pattern.