Thunderstorm - Squall, Supercell, Mesocyclone

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Thunderstorm - Squall, Supercell, Mesocyclone: At one time, thunderstorms were classified according to where they occurred—for example, as local, frontal, or orographic (mountain-initiated) thunderstorms. Today it is more common to classify storms according to the characteristics of the storms themselves, and such characteristics depend largely on the meteorological environment in which the storms develop. The United States National Weather Service has defined a severe thunderstorm as any storm that produces a tornado, winds greater than 26 metres per second (94 km [58 miles] per hour), or hail with a diameter of at least 2.5 cm (1.0 inch). Isolated thunderstorms tend to occur where there are
Thunderstorm, a violent short-lived weather disturbance that is almost always associated with lightning, thunder, dense clouds, heavy rain or hail, and strong gusty winds. Learn more about thunderstorms, including their structure and the different types.