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| | | #REDIRECT [[Supercell]] |
| #REDIRECT [[supercell]] | |
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| == supercell ==
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| <div class="definition"><div class="short_definition">An often dangerous [[convective storm]] that consists primarily of a single, quasi-steady rotating [[updraft]], which persists for a period of time much longer than it takes an [[air parcel]] to rise from the base of the updraft to its summit (often much longer than 10–20 min). </div><br/> <div class="paragraph">Most rotating updrafts are characterized by cyclonic [[vorticity]] (<br/>''see'' [[mesocyclone]]). The supercell typically has a very organized internal structure that enables it to propagate continuously. It may exist for several hours and usually forms in an [[environment]] with strong [[vertical wind shear]]. Supercells often propagate in a direction and with a speed other than indicated by the mean wind in the environment. Such storms sometimes evolve through a splitting process, which produces a [[cyclonic]], right-moving (with respect to the mean wind), and [[anticyclonic]], left-moving, pair of supercells. [[Severe weather]] often accompanies supercells, which are capable of producing high winds, large [[hail]], and strong, long-lived [[tornadoes]]. <br/>''See also'' [[convective storm]], [[thunderstorm]], [[splitting convective storm]], [[cell]], [[bulk Richardson number]].</div><br/> </div>
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