do cumulus clouds bring rain?
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Normally, cumulus clouds produce little or no precipitation, but they can grow into the precipitation-bearing congestus or cumulonimbus clouds. Cumulus clouds can be formed from water vapour, supercooled water droplets, or ice crystals, depending upon the ambient temperature.
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Air rises in a low pressure area and falls in a high pressure area. In a low pressure area the rising air cools and this is likely to condense water vapour and form clouds, and consequently rain. The opposite is true in a high pressure area, which is why high pressure tends to give cloudless skies.
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Cumulonimbus clouds are born through convection, often growing from small cumulus clouds over a hot surface. ... They can also form along cold fronts as a result of forced convection, where milder air is forced to rise over the incoming cold air.
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Heavy or light rain, sleet, snow, drizzle, and hail are all types of precipitation. However, fog and dew are not considered precipitation because these two processes are actually water condensing.
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Cumulus clouds are part of the larger category of free-convective cumuliform clouds, which include cumulonimbus clouds.
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Cumulus clouds can be composed of ice crystals, water droplets, supercooled water droplets, or a mixture of them. The water droplets form when water vapor condenses on the nuclei, and they may then coalesce into larger and larger droplets.
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Stratus clouds, which are the fog clouds, fall into this category. When low stratus clouds begin to deliver rain, they are called nimbostratus.
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Cumulonimbus clouds are menacing looking multi-level clouds, extending high into the sky in towers or plumes. More commonly known as thunderclouds, cumulonimbus is the only cloud type that can produce hail, thunder and lightning.
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How do arcus clouds form? When a cold downdraft from a cumulonimbus cloud reaches the ground, the cold air may spread rapidly along the ground, pushing existing warm moist air upwards. As this air rises, water vapour condenses into the patterns associated with Arcus clouds.
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['Stratus/strato = flat/layered and smooth.', 'Cumulus/cumulo = heaped up/puffy, like cauliflower.', 'Cirrus/cirro = high up/wispy.', 'Alto = medium level.', 'Nimbus/Nimbo = rain-bearing cloud.']
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These cumulonimbus clouds (or, more commonly, rain clouds) will “stack” on top of one another, rising higher and higher, creating a tropical disturbance. ... As winds in the column start to spin faster and faster, a tropical depression, tropical storm or even a full-fledged tropical cyclone (i.e., a hurricane) can form.
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Cumuliform clouds and showery precipitation. 3413. What are characteristics of unstable air? Turbulence and good surface visibility.
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In a shallow conditionally unstable or absolutely unstable environment, one may expect clouds to develop, but their vertical growth will be limited, and may observe: cumulus humilis (shallow cumulus) stratocumulus In an absolutely stable environment, no clouds will likely form.
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Howard also designated a special rainy cloud category which combined the three forms Cumulo + Cirro + Stratus. He called this cloud, 'Nimbus', the Latin word for rain. The vast majority of precipitation occurs from nimbo-form clouds and therefore these clouds have the greatest vertical height.
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Heavy or light rain, sleet, snow, drizzle, and hail are all types of precipitation. However, fog and dew are not considered precipitation because these two processes are actually water condensing. As dew, it is condensing on objects. As fog, it's condensing in the air, but low to the ground.
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A cumulonimbus cloud (CB) is dangerous because of the processes occurring in them. ... Threats within the cloud are severe turbulence, very strong updrafts (some as high as 100 m/s or more) and downdrafts containing torrential rain, hail and lightning.
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Fair weather cumulus have the appearance of floating cotton and have a lifetime of 5-40 minutes. Known for their flat bases and distinct outlines, fair weather cumulus exhibit only slight vertical growth, with the cloud tops designating the limit of the rising air.