Category: Define

Cirrocumulus A cirriform cloud with vertical development, appearing as a thin sheet of small white puffs which give it a rippled effect. It often creates

Cirrostratus A cirriform cloud that develops from cirrus spreading out into a thin layer, creating a flat sheetlike appearance. It can give the sky a

Cirrus One of the three basic cloud forms (the others are cumulus and stratus). It is also one of the three high cloud types. Cirrus

Clear The state of the sky when no clouds or obscurations are observed or detected from the point of observation. Sky The vault-like apparent surface

Climate The historical record and description of average daily and in seasonal weather events that help describe a region. Statistics are generally drawn over several

Cold Advection The horizontal movement of colder air into a location. Contrast with warm advection. Cold A condition marked by low or decidedly subnormal temperature.

Climatology The study of climate. It includes climatic data, the analysis of the causes of the differences in climate, and the application of climatic data

Cold Front The leading edge of an advancing cold air mass that is under running and displacing the warmer air in its path. Generally, with

Closed Low A region of low pressure distinguished by a center of counterclockwise circulation (in the Northern Hemisphere), and is surrounded by one or more

Cloud A visible collection of minute particle matter, such as water droplets and/or ice crystals, in the free air. A cloud forms in the atmosphere