Multiple-vortex (or Multi-vortex) Tornado A tornado in which two or more condensation funnels or debris clouds are present at the same time, often rotating about a common center or about each other.
A multiple-vortex tornado had just dissipated from beneath this distant updraft, and an opaque precipitation shaft was developing in the previously rain-free area where the tornado occurred.
flow field ...
Several suction vortices typically are present in a multiple-vortex tornado. Much of the extreme damage associated with violent tornadoes (F4 and F5 on the Fujita scale) is attributed to suction vortices.
(or Multi-vortex tornado) a tornado in which two or more condensation funnels or debris clouds are present at the same time, often rotating about a common centre or about each other. Multiple-vortex tornadoes can be especially damaging.
Multiple-vortex tornadoes can be especially damaging.Multipurpose ReservoirIn hydrologic terms, a reservoir constructed and equipped to provide storage and release of water for two or more purposes such as flood control, power development, ...
Multiple-vortex tornadoes can be especially damaging.MushroomA thunderstorm with a well-defined anvil rollover, and thus having a visual appearance resembling a mushroom.Night, overnightSunset to sunrise.
 See also: Cloud, Supercell, Multiple, Storm, Thunderstorms
  
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