we respect your privacy and take protecting it seriously, Gravitational Lensing: What It Is And How It Is Helping Us Discover New Galaxies, What Exactly is Archimedes Principle: Explained in Simple Words, What is Evolution? a cloud of a class indicative of thunderstorm conditions, characterized by large, dense towers that often reach altitudes of 30,000 feet (9,000 meters) or more, cumuliform except for their tops, which appear fibrous because of the presence of ice crystals: occurs as a single cloud or as a group with merged bases and separate tops. The sky is dark and the rain is pouring down. Cumulonimbus (Cb) is a towering vertical cloud (family D2) that is very tall, dense, and involved in thunderstorms and other inclement weather.Cumulonimbus originates from Latin: Cumulus "heap" and nimbus "cloud".It is a result of atmospheric instability.These clouds can form alone, in clusters, or along a cold front in a squall line. These clouds may line up to form a storm front, in what is called a flanking line, or a small tube/funnel will dangle down from the clouds, with the potential to form a tornado! Also called a thunderstorm cloud, it is frequently accompanied by heavy showers, lightning, thunder, and sometimes hail, tornadoes or strong, gusty winds. These types of clouds usually form in tropical areas, where these elements are more commonly found together, but blizzards are another form of precipitation caused by cumulonimbus clouds. Modern-Day Dinosaurs: The Descendants Of Dinosaurs That Surround Us Today. The large amount of water and ice crystals in the clouds will absorb and scatter the light, creating their threatening appearance! en.wiktionary.2016 [noun] A cloud, with a tall structure and a flat base, that is often associated with thunderstorms. “Affect” vs. “Effect”: Use The Correct Word Every Time. Dictionary.com Unabridged There are also accessory clouds and peripheral features that may be present with cumulonimbus, which can give them a different shape, or perhaps even indicate which direction a storm is moving! Heavy and dense cloud, with a considerable vertical extent, in the form of a mountain or huge towers. mass noun Meteorology Cloud forming a towering mass with a flat base at fairly low altitude and often a flat top, as in thunderstorms. Translated from latin, meaning bald, a cloud that’s classified as cumulonimbus calvus can be best identified through the puffy and cumuliform appearance at the top of the cloud. The mature stage is evidenced by additional moisture being drawn upwards and condensed once it comes in contact with condensation nuclei high in the atmosphere. Cumulonimbus (din limba latină cumulus "grămadă" și nimbus "nor de furtună") este un nor dens, înalt, asociat cu furtuni și instabilitate atmosferică, format din vapori de apă sub acțiunea unui vânt ascendent.Norii Cumulonimbus se pot forma izolat, grupați sau de-a lungul unui front atmosferic rece sub forma liniilor de furtuni (eng. Circle Of Willis: Anatomy, Diagram And Functions. CUMULONIMBUS CLOUD (Cb): A vertically developed cloud, often capped by an anvil shaped cloud. Cumulonimbus may form alone, in clusters, or along cold front squall lines. Cumulonimbus clouds get a lot of attention because they bring dangerous weather phenomena, such as lightning, tornadoes, and blizzards. The two main species of a cumulonimbus cloud are Cumulonimbus calvus and Cumulonimbus capillatus, which are differentiated by their topmost appearance, the former being puffy but solid, while the latter is more scattered and flurried, like a cirrus cloud. Why Are There Stones Alongside Railway Tracks? On a perpetual journey towards the idea of home, he uses words to educate, inspire, uplift and evolve. Subscribe to our mailing list and get interesting stuff and updates to your email inbox. n a dark cloud of great vertical extent charged with electricity; associated with thunderstorms. The top of the cloud might take on a bald appearance ( calvus cloud species ), or it can take on a hairy and fibrous upper portion ( capillatus cloud species ). : cumulus cloud having a low base and often spread out in the shape of an anvil extending to great heights — see cloud illustration. A few seconds later, you hear the rumble and crash of thunder as it shakes the windows in your house. As mentioned, when water vapor (moisture) is drawn upwards through an unstable air mass on a hot day, a cumulonimbus cloud may start to form. Definition of cumulonimbus. What Is The Fibonacci Sequence? 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