Famous scientists who studied this phenomenon include Allen Pearson, who co-names the scale used to measure it. This phenomenon is divided into "wedge" and "stovepipe" varieties. This weather phenomenon leaves a so-called "hook echo" on radar and is associated with rear flank downdrafts in a supercell thunderstorm. It is measured on the Fujita Scale from 1 to 5. This phenomenon is common in an area called its "alley," which includes the Great Plains and Midwest. For 10 points, name this weather 
Famous scientists who studied this phenomenon include Allen Pearson, who co-names the scale used to measure it. This phenomenon is divided into "wedge" and "stovepipe" varieties. This weather phenomenon leaves a so-called "hook echo" on radar and is associated with rear flank downdrafts in a supercell thunderstorm. It is measured on the Fujita Scale from 1 to 5. This phenomenon is common in an area called its "alley," which includes the Great Plains and Midwest. For 10 points, name this weather phenomenon that produces high winds and a funnel cloud.
Famous scientists who studied this phenomenon include Allen Pearson, who co-names the scale used to measure it.
{tornado} [or {twister}]