bus. Pyrocumulus clouds are grayish or brown in color because of the ashes and smoke of the fire. Cumulonimbus definition, 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. a visible mass of water or ice particles suspended at a considerable altitude. Cumulonimbus clouds facts. Copyright © 2011. the "cumulonimbus cloud" family. Also called a thunderstorm cloud, it is frequently accompanied by heavy showers, lightning, thunder, and sometimes hail, tornadoes or strong, gusty winds. ‘The rising air cools and produces towering cumulus and cumulonimbus clouds.’ ‘The rising air is associated with a region of low air pressure, towering cumulonimbus clouds and rain.’ ‘As air rises in a large cumulonimbus or thunderhead cloud condensation occurs and all three forms of water are present.’ Accessed 25 Apr. What does cumulonimbus cloud mean? Many regions of the earth depend almost totally upon cumulonimbus clouds for rainfall. Published by Houghton Mifflin Harcourt Publishing Company. At this height, high winds will flatten the top of the cloud out into an anvil-like shape. Cumulus is a type of cloud that is common in Wisconsin, particularly in summer. 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. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Cumulonimbus clouds also have vertical growth and can grow up to 10 km high. This example is from Wikipedia and may be reused under a CC BY-SA license. Information and translations of cumulonimbus cloud in the most comprehensive dictionary definitions resource on the web. What made you want to look up cumulonimbus? A big, bright bolt of lightning streaks across the sky. The proper cloud classification abbreviation for this cloud is ‘Cb cal’. From. cumulonimbus definition: 1. a large, tall type of cumulus cloud that is often dark and brings heavy rain or a thunderstorm…. 1. cumulonimbus cloud - a dark cloud of great vertical extent charged with electricity; associated with thunderstorms. High above the African continent, tall, dense cumulonimbus clouds, meaning 'column rain' in Latin, are the result of atmospheric instability. The tops of these clouds can reach as high as 30,000 feet. These Cumulonimbus Cloud is a vertical developing type and its base grows from 1 to up to 8 kilometers. 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 high energy of these storms is associated with … Word Family. cloud - a visible mass of water or ice particles suspended at a considerable altitude. Hazardous conditions exist in and around cumulonimbus clouds that can easily surpass the design criteria and performance capabilities of aircraft of all types. At least part of its upper portion is usually smooth, or fibrous or striated, and nearly always flattened; this part often spreads out in the shape of an anvil or vast plume. First appeared around 1750, and is related to the French word “braguette” for the name of codpiece armor. The cumulonimbus cloud, or thunderstorm, is a convective cloud or cloud system that produces rainfall and lightning. Cumulonimbus clouds, for instance, are rife near mountain chains in hot weather regions. (kyo͞om′yə-lō-nĭm′bəs) A very large cloud with a low, dark base and fluffy masses that billow upward to great heights. The American Heritage® Science Dictionary Noun. cumulonimbus, thundercloud. It often produces large hail, severe wind gusts, tornadoes, and heavy rainfall. Meaning of cumulonimbus cloud. Test your vocabulary with our 10-question quiz! What Is An Em Dash And How Do You Use It? First appeared in 1610, based on the French word “baguette” for the long loaf of bread. The anvil or mushroom shape is caused due to the strong wind shear or warm air turbulence when the cloud reaches the troposphere. An example of cumulonimbus cloud. When water vapor is drawn upwards by strong air currents, it can represent the developmental stage of a cumulonimbus cloud. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Wikipedia. Cumulonimbus clouds fully developed are much different than typical fair-weather cumulus clouds, but a cumulus congestus cloud is the precursor to a cumulonimbus cloud. Why Do “Left” And “Right” Mean Liberal And Conservative? cumulonimbus cloud. Cumulus clouds are those puffy-white clouds with tops that have a cauliflower appearance. Those gloomy clouds keeping you from playing outside and having fun are called cumulonimbus clouds. (noun) They are also a variation of nimbus or precipitation bearing clouds… The American Heritage® Student Science Dictionary, Second Edition. Cumulonimbus clouds typically produce large amounts of precipitation. Type of: cloud. 'Nip it in the butt' or 'Nip it in the bud'. Cumulonimbus - Cumulonimbus clouds are very tall clouds that span all the way from low level to high level. Cumulonimbus clouds are associated with strong to even severe weather ranging from heavy rain to strong updrafts and downdrafts to tornados. In thunderstorm: Vertical atmospheric motion. a heavy and dense cloud of considerable vertical extent in the form of a mountain or huge tower, Cumulonimbus clouds are thunderstorm clouds and are associated with heavy rain, snow, hail, lightning, and sometimes tornadoes. Dictionary.com Unabridged All rights reserved. Cumulonimbus is a type of cloud, similar to cumulus, that extends to a great height and is associated with thunderstorms. The clouds can form alone, in clusters, or along a cold front in a squall line. 10. They can cause violent thunderstorms with heavy rain, hail, and even tornadoes. A cloud, with a tall structure and a flat base, that is often associated with thunderstorms. Cumulonimbus (Cb) is a type of cloud that is tall, dense, and involved in thunderstorms and other intense weather.When seen in a storm, it may be called "thunderhead". The clouds can form alone, in clusters, or along a cold front in a squall line, a line of strong winds. A daily challenge for crossword fanatics. Cumulonimbus clouds usually produce heavy rains, thunderstorms, or hailstorms. Definition of Cumulonimbus Heavy and dense cloud, with a considerable vertical extent, in the form of a mountain or huge towers. Giga-fren fr Les Cumulonimbus peuvent se manifester soit isolément, soit en une ligne continue qui ressemble à un très vaste mur. Low clouds fall into four divisions: cumulus, stratus, Would cirrus clouds bring the most apparitions, or, Post the Definition of cumulonimbus to Facebook, Share the Definition of cumulonimbus on Twitter, 'If' vs. 'Whether': Similar But Different. Cumulonimbus cloudsare Cumulonimbus clouds are a type of cumulus cloud associated with thunder storms and heavy precipitation. en Cumulonimbus clouds may appear either as isolated clouds or in the form of a continuous line of clouds which resembles as very extensive wall. Cumulonimbus Clouds Definition. An extremely dense, vertically developed cloud with a low, dark base and fluffy masses that tower to great heights. All Sources Fiction Arts / Culture News Business Sports Science / Med Technology. These examples are … Cumulonimbus clouds usually produce heavy rains, thunderstorms, or hailstorms. These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cumulonimbus.' 'All Intensive Purposes' or 'All Intents and Purposes'? Please tell us where you read or heard it (including the quote, if possible). Let’s start with some etymology: What are the origins of the typographical word “bracket”? Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012. This cloud consists mainly of water droplets. The weather conditions necessary for such clouds to form include an unstable air mass, sufficient moisture, and an upward force (typically provided by heat). Cumulonimbus clouds, commonly called thunderheads, can produce high winds, torrential rain, lightning, gust fronts, waterspouts, funnel clouds, and tornadoes. Delivered to your inbox! Definition of cumulonimbus. Cumulonimbus A vertically developed cumulus cloud, often capped by an anvil-shaped cirriform cloud. No other cloud type besides a cumulonimbus cloud can receive a calvus classification. Learn a new word every day. © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Usage Examples. The clouds typically form as a result of air turbulence within large. a cumulus cloud of great vertical extent, the top often forming an anvil shape and the bottom being dark coloured, indicating rain or hail: associated with thunderstorms. Ultimately, a cumulonimbus cloud will form, with its characteristic anvil-shaped top, billowing sides, and dark base. Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021, Collins English Dictionary - Complete & Unabridged 2012 Digital Edition You've waited days, weeks, months, even years for... How to use a word that (literally) drives some pe... Can you correctly identify these flowers? “Cumulonimbus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cumulonimbus. The Cumulonimbus Cloud are fluffy and white just like cumulus but the cloud formations are very larger then usual. If you’re trying to decide between the two, and the cloud in question has precipitation, lightning, or a fibrous upper portion, you can consider it a cumulonimbus cloud. “Affect” vs. “Effect”: Use The Correct Word Every Time. A few seconds later, you hear the rumble and crash of thunder as it shakes the windows in your house. More from Merriam-Webster on cumulonimbus, Britannica.com: Encyclopedia article about cumulonimbus. By definition of cumulonimbus cloud, at its top water droplets are transformed into ice crystals. Cumulonimbus calvus develops from cumulus congestus, and its further development, under auspicious conditions, will result in cumulonimbus incus. But when levels of charge in cumulonimbus clouds--distinctive anvil-shaped formations created from rising bubbles of warm, moist air--build to the order of millions of volts, the atmosphere breaks down violently as the air is instantaneously heated to about 30,000[degrees]C. : cumulus cloud having a low base and often spread out in the shape of an anvil extending to great heights — see cloud illustration. The sky is dark and the rain is pouring down. First appeared in 1555, and is related to the French word “raquette” for a netted bat. 2021. Send us feedback. Definition of cumulonimbus cloud in the Definitions.net dictionary. What does cumulonimbus mean? They are very dense clouds that soar up to a height of about 15 – 22 km. They usually mean good weather unless they grow really tall and turn into cumulonimbus clouds. cumulonimbus, thundercloud. ‘The rising air cools and produces towering cumulus and cumulonimbus clouds.’ ‘The rising air is associated with a region of low air pressure, towering cumulonimbus clouds and rain.’ ‘As air rises in a large cumulonimbus or thunderhead cloud condensation occurs and all three forms of water are present.’ Cumulonimbus clouds are large, fluffy, and mighty clouds that take the shape of an anvil or a huge mushroom at the top when well-developed. So, here are the pics for Cumulonimbus Clouds. 600 New Words And Definitions: The Latest Updates To Dictionary.com, The Most Surprisingly Serendipitous Words Of The Day, The Words You Need To Know To Talk About Climate Change Today, The Dictionary.com Word Of The Year For 2020 Is …, Read Poetry Like An Expert With These Advanced Poetic Terms. 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