is the size of a tornado directly related to the intensity of the tornado
Tornado intensity Tornadoes vary in intensity regardless of shape, size, and location, though strong tornadoes are typically larger than weak tornadoes. The association with track length and duration also varies, although longer track (and longer lived) tornadoes tend to be stronger.[3] In the case of violent tornadoes, only a small portion of the path area is of violent intensity; most of the higher intensity is from subvortices.[4] In the United States, 80% of tornadoes are EF0 and EF1 (T0 through T3) tornadoes. The rate of occurrence drops off quickly with increasing strengthâ€”less than 1% are violent tornadoes (EF4, T8 or stronger).[5]
Dust devil They are comparable to tornadoes in that both are a weather phenomenon involving a vertically oriented rotating column of wind. Most tornadoes are associated with a larger parent circulation, the mesocyclone on the back of a supercell thunderstorm. Dust devils form as a swirling updraft under sunny conditions during fair weather, rarely coming close to the intensity of a tornado.