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Cumulonimbus (from Latin cumulus 'swell' and nimbus 'cloud') is a dense, towering, vertical cloud, [1] typically forming from water vapor condensing in the lower troposphere that builds upward carried by powerful buoyant air currents.
Cumulus congestus clouds compared against a cumulonimbus cloud in the background. Due to reflectivity, clouds cool the earth by around 12 °C (22 °F), an effect largely caused by stratocumulus clouds. However, at the same time, they heat the earth by around 7 °C (13 °F) by reflecting emitted radiation, an effect largely caused by cirrus clouds.
Cumulonimbus pileus (WMO genus and accessory cloud) – capped, hood-shaped cloud above a cumulonimbus cloud. Cumulonimbus praecipitatio (WMO genus and supplementary feature) – Cb whose precipitation reaches the ground. Cumulonimbus tuba (WMO genus and supplementary feature) – column hanging from the bottom of cumulonimbus. Debris cloud ...
Tornadoes come in many shapes and sizes, and they are often (but not always) visible in the form of a condensation funnel originating from the base of a cumulonimbus cloud, with a cloud of rotating debris and dust beneath it. Most tornadoes have wind speeds less than 180 kilometers per hour (110 miles per hour), are about 80 meters (250 feet ...
A hot tower is a tropical cumulonimbus cloud that reaches out of the lowest layer of the atmosphere, the troposphere, and into the stratosphere. [1] These formations are called "hot" because of the large amount of latent heat released as water vapor that condenses into liquid and freezes into ice within the cloud.
Read Fast Facts from CNN about the CN Tower, or Canada’s National Tower, located in Toronto.
June 20, 2018 - The tower’s official website announces that the new glass wall is ready to be unveiled. May 20, 2019 - The tower is closed and evacuated after a man is spotted climbing up the side .
Hailstorms are generally capable of developing in any geographic area where thunderclouds (cumulonimbus) are present, although they are most frequent in tropical and monsoon regions. [59] The updrafts and downdrafts within cumulonimbus clouds cause water molecules to freeze and solidify, creating hailstones and other forms of solid ...