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! A few seconds later, you hear the rumble and crash of thunder as it shakes the windows in your house. Look it up now! They can also produce severe, dangerous weather, including supercells and torrential rains. The objectives of this study are to elucidate the structure of cu-mulonimbus cloud that caused heavy rainfall over a mountain region, and to understand the roles of a valley wind circulation and a sea breeze in the development of a cumulonimbus cloud. The American Heritage® Science Dictionary While these clouds can form anywhere on the planet, they are primarily found in tropical areas, where violent (and brief) summer storms are the norm. Cumulonimbus is a dense towering vertical cloud associated with thunderstorms and atmospheric instability, forming from water vapour carried by powerful upward air currents. Definition of Cumulonimbus (Section 2.3.10.1) Heavy and dense cloud, with a considerable vertical extent, in the form of a mountain or huge towers. [>>>] 2. They are often called thunderheads or storm clouds—even if they don’t produce precipitation, e.g., dry storms—because they are often dark and ominous. The majority of these clouds are associated with precipitation, but as mentioned earlier, some of these clouds will only be known by their thunder and lightning. What Is The Difference Between “It’s” And “Its”? Cumulonimbus clouds also have vertical growth and can grow up to 10 km high. in the cumulonimbus cloud. Learn more. Cumulonimbus clouds usually produce heavy rains, thunderstorms, or hailstorms. (Photo Credit : John D Sirlin/ Shutterstock). Some of these massive clouds will also form small bubbles on the underside, called mammatus. mass noun Meteorology Cloud forming a towering mass with a flat base at fairly low altitude and often a flat top, as in thunderstorms. Why Are There Stones Alongside Railway Tracks? 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. “Affect” vs. “Effect”: Use The Correct Word Every Time. The Dictionary.com Word Of The Year For 2020 Is …. The sky is dark and the rain is pouring down. The Birth of a Cumulonimbus Cloud. a visible mass of water or ice particles suspended at a considerable altitude. Also called a thunderstorm cloud, it is frequently accompanied by heavy shower s, lightning, thunder, and sometimes hail or gusty winds. Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012. The latter one means storm cloud or rainstorm, while the former one means heap. How Big Is It and Does It Bite? en.wiktionary.2016 [noun] A cloud, with a tall structure and a flat base, that is often associated with thunderstorms. While most people simply think of them as “storm clouds”, there are a number of fascinating facts about this cloud type that make it worthy of our attention. John Staughton is a traveling writer, editor, publisher and photographer who earned his English and Integrative Biology degrees from the University of Illinois. translation and definition "Cumulonimbus", Dictionary English-English online ... Definitions. When water vapor is drawn upwards by strong air currents, it can represent the developmental stage of a cumulonimbus cloud. Cumulonimbus A vertically developed cumulus cloud, often capped by an anvil-shaped cirriform cloud. Type of: cloud. The moisture rapidly cools down and condenses to form tiny drops of water, forming the rising cumulus clouds. In some cases, the precipitation will mostly or completely evaporate before reaching the ground. The strong winds that high in the atmosphere will shear off the top, creating the appearance of a flat top. For example, when you see a large and imposing cumulonimbus cloud with a top that looks like an anvil, that is an incus, and forms when the cloud reaches its very highest point. 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. 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. There are few things as pleasurable or nostalgic as a good summer storm. “Inauguration” vs. “Swearing In”: What’s The Difference? Cumulonimbus clouds are composed of water vapor near the bottom and ice crystals near the very top, part of the reason why their growth typically has a cap before the storm finally breaks. The weather conditions necessary for such clouds to form include an unstable air mass, sufficient moisture, and an upward force (typically provided by heat). Circle Of Willis: Anatomy, Diagram And Functions. CUMULONIMBUS CLOUD (Cb): A vertically developed cloud, often capped by an anvil shaped cloud. Cumulonimbus definition: a cumulus cloud of great vertical extent , the top often forming an anvil shape and the... | Meaning, pronunciation, translations and examples : cumulus cloud having a low base and often spread out in the shape of an anvil extending to great heights — see cloud illustration. Most cumulonimbus clouds will dump their contents in around 20 minutes, and then begin to dissipate, but that dramatic downpour can often cause damage and flash-flooding. They are certainly the most impressive, rolling out from over the horizon like a vengeful wave of anger and retribution. Or do you just have an interest in foreign languages? Why Do “Left” And “Right” Mean Liberal And Conservative? © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Why Is It So Special? 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? cumulonimbus - a dark cloud of great vertical extent charged with electricity; associated with thunderstorms cumulonimbus cloud , thundercloud cloud - a visible mass of water or ice particles suspended at a considerable altitude Dictionary.com Unabridged To the untrained eye, most storm clouds look the same, but not all cumulonimbus clouds are created equal, and there are some key differences you should understand. A big, bright bolt of lightning streaks across the sky. The mature Cumulonimbus cloud has a distinctive flat, anvil shaped top. The weather conditions necessary for such clouds to form include an unstable air mass, sufficient moisture, and an upward force (typically provided by heat). These severe storms can often last for 2-4 hours, but are the least common form of thunderstorms, mostly seen in the Great Plains of the United States. So, the next time you hear a rumble in the distance, bring your friends outside and give them the lowdown on cumulonimbus clouds… just make sure you get back inside before the bottom falls out and the rain begins to pour! What Is The Fibonacci Sequence? The cumulonimbus cloud is the only cloud that extends through all three cloud levels. 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