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Thunderstorm cells occasionally form in isolation, as the occurrence of one thunderstorm can develop an outflow boundary that sets up new thunderstorm development. Such storms are rarely severe and are a result of local atmospheric instability; hence the term "air mass thunderstorm".
Generally, thunderstorms require three conditions to form: moisture, an unstable airmass, and a lifting force (heat). All thunderstorms, regardless of type, go through three stages: the developing stage, the mature stage, and the dissipation stage. [11] [better source needed] The average thunderstorm has a 24 km (15 mi) diameter. Depending on ...
Landspouts are tornadoes that do not form from mesocyclones. They are similar in appearance and structure to fair-weather waterspouts, except that they form over land instead of water. They are thought to form similarly to weaker waterspouts [ 12 ] in that they form during the growth stage of convective clouds by the ingestion and tightening of ...
When causing thunderstorms, these clouds may be called thunderheads. Cumulonimbus can form alone, in clusters, or along squall lines. These clouds are capable of producing lightning and other dangerous severe weather, such as tornadoes, hazardous winds, and large hailstones.
An air-mass thunderstorm, also called an "ordinary", [1] "single cell", "isolated" or "garden variety" thunderstorm, [2] is a thunderstorm that is generally weak and usually not severe. These storms form in environments where at least some amount of Convective Available Potential Energy (CAPE) is present, but with very low levels of wind shear ...
Hail, however, forms in thunderstorms that are more common in spring, summer, or fall. First, soft, snow-like particles form in subfreezing air at the top of a thunderstorm. (Yes, even in the ...
The summer season is in full effect across the United States, and millions of people have already felt the effects of a heat dome, a phenomenon that acts like nature's oven. A heat dome is a ...
One can distinguish three stages in the evolution of a thunderstorm cell: [2] [3] formation: the upward current of the cell intensifies and allows the condensation of water vapor from the rising air parcel. This forms a cumulus congestus, then a cumulonimbus when ice crystals form at its apex which spreads horizontally in contact with the ...