![]() Front Flank Supercell – High precipitation (HP).Rear Flank Supercell – Low precipitation (LP),.However, they often appear quite different visually from one storm to another depending on the amount of precipitation accompanying the storm and whether precipitation falls adjacent to, or is removed from, the storm’s updraft.īased on their visual appearance, supercells are often divided into three groups This change in wind speed and direction produces storm-scale rotation, meaning the entire cloud rotates, which may give a striated or corkscrew appearance to the storm’s updraft.ĭynamically, all supercells are fundamentally similar. For example, in a veering wind situation the winds may be from the south at the surface and from the west at 15,000 feet (4,500 meters). ![]() The most ideal conditions for supercells occur when the winds are veering or turning clockwise with height. An idealized “low precipitation” supercell. Downdrafts produced by these storms can produce downbursts/outflow winds in excess of 100 mph (160 km/h), posing a high threat to life and property. Supercells are highly organized storms characterized by updrafts that can attain speeds over 100 mph (160 km/h) and are able to produce giant hail with strong or even violent tornadoes. Supercells are also known to produce extreme winds and flash flooding. and for most of the hailstones larger than golf ball size. They are responsible for nearly all of the significant tornadoes produced in the U.S. Supercell thunderstorms are a special kind of single cell thunderstorm that can persist for many hours.
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