Experts say the supercell is the strongest and most violent storm that can occur. The effects verified in the Brescia area prove the experts' thesis right.
The supercell occurs when the atmosphere is unstable for many kilometers.
The supercell is not a frequent phenomenon, this is because in order for it to occur, there must be a concomitance of factors; such as:
humid and mild winds in the atmospheric layers closest to the ground;
one clockwise rotation;
a certain modulation of the intensity of the wind as you go up in altitude.
The supercell is formed thanks to the presence of strong currents, which feed strong upward motions. The supercell is made up of a single storm cell, but of gigantic size (hence the prefix "super"). Inside them move a mesocyclone (is an atmospheric air vortex, with a diameter ranging from 3 to 16 km) and a single rotating updraft, or the ascending current composed of hot and humid air pushed towards the high (which forms the "heart" of the supercell). The ascending motions that compose it exceed the tropopause, this gives the dome shape. The supercell moves, bringing with it:
a very strong wind, which blows more than 100 kilometers per hour;
the pouring rain;
hail.
(The photo does not represent Brescia, it is purely for illustrative purposes, it does not represent the city).
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