We propose a conceptual model for the tornado life-cycle, based upon the 1973 Union City, OK case and subsequent 30 years of storm-chasing observations, including Project VORTEX. The key ingredient in the tornado’s decay stage onset is the approach of a nearby gust-front or density-surge line, which gradually undercuts vortex inflow. We would test the hypothesis for accelerating the tornado’s life-cycle, by first doing sensitivity experiments with the numerical tornado simulations of Lee and Wilhelmson and Lewellan and Lewellan. Seeding to produce an early downdraft/gust-front formation relative to the tornado would be simulated in these models. Results of seeded/non-seeded cases would be carefully analyzed and compared. Based on the results of these modeling experiments, field seeding trials on waterspout-producing cumulus congestus cloudlines in the safe working environment of the Florida Keys could be conducted. We base this approach on the recommendations of Davies-Jones(1982).