These events can be caused by rear flank downdrafts reaching a mesocyclone within a supercell.
These events can be caused by rear flank downdrafts reaching a mesocyclone within a supercell. As rain wraps around the mesocyclone, it creates a "hook echo" pattern on Doppler radar; that is one criterion for the National Weather Service to issue a (*) "Warning" that one of these events is imminent. The Fujita scales measure the impact of, for 10 points, what funnel-shaped columns of air whose debris clouds can reach the ground?
These events can be caused by rear flank downdrafts reaching a mesocyclone within a supercell.
tornado (prompt on twister or other colloquial names, but do not prompt on cyclone)