VORTEX2 utilized Using enhanced technology allowing Preventing_or_letting scientists to improve Cause_to_make_progress forecasting capabilities to improve advanced warnings to residents .

VORTEX2 sought to elucidate how tornadoes form , how long they last and why they last that long , and what causes Causation them to dissipate .

VORTEX1 and VORTEX2 involved Cause_to_be_included large surface fleets of instrumented vehicles as well as aircraft and mobile radars .

The field research phase of the VORTEX2 project concluded Process_end on July 6 , 2010 .