Accessory Cloud

An accessory cloud is a cloud which is dependent on a larger cloud system for its development and continuance. It is often an appendage but also can be adjacent to the parent cloud system.

The arcus and roll clouds, shelf cloud, wall cloud, and scud are examples of low level or vertical accessory clouds whilst the anvil, and overshooting top, are examples of high level accessory clouds. The condensation funnel of funnel clouds and tornadoes are also accessory clouds. They are associated with deep moist convection and especially cumulonimbus, the primary cloud producing thunderstorms. The pileus and mammatus types can form at various altitude ranges depending on the main clouds with which they are associated. The World Meteorological Organization classifies most accessory clouds as supplementary features. The height range classification of a supplementary feature is the same as the parent cloud. As an example, the anvil cloud (supplementary feature incus) forms at high altitude but is not classisfied by the WMO as a high cloud because of its association with the genus cumulonimbus.

Read more about Accessory Cloud:  Precipitation

Other articles related to "cloud, clouds, accessory cloud":

Cloudy - Tropospheric Class - Summary of Families, Genera, Species, Varieties, Supplementary Features, Mother Clouds, and Associat - Low Stratocumuliform, Stratiform, and Cumuliform
... (Sc) This genus type is a stratocumuliform cloud layer of limited convection, usually in the form of irregular patches or rounded masses similar to altocumulus but having larger elements with deeper-gray shading ... This cloud often forms under a precipitating deck of altostratus or high-based nimbostratus associated with a well-developed warm front, slow-moving cold front, or low-pressure area ... All species are coded CL5 except when formed from free convective mother clouds (CL4) or when formed separately from co-existing cumulus (CL8) ...
Accessory Cloud - Precipitation
... It is very rare for any accessory cloud to generate its own precipitation ... However, the parent cloud may generate precipitation ... Precipitation from the parent cloud is often confused with the accessory cloud and observers think that the precipitation is actually falling from the accessory cloud ...

Famous quotes containing the word cloud:

    These boys who love their mother
    who loves men, who passes on
    her sons to other women;

    The cloud across the sky. The windy pines.
    the trickle gurgle in the swampy meadow

    this is our body.
    Gary Snyder (b. 1930)