Put the events that happen to create and dissipate a tornado in order. A. Rear-flank downdraft completely envelops the mesocyclone, cutting off the source of warm moist rising air B. High wind-shear creates a roll cloud C. Rear-flank downdraft partially envelops the mesocyclone, pulling the mesocyclone to the surface and generating a tornado D. Roll cloud is pulled into a thunderstorm, creating a mesocyclone E. Warm moist from south meets cold dry air from the north B,E,C,A,D D,E,C,B,A B,E,D,C,A E,B,D,C,A