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The three-moment Straka Atmospheric Model (SAM) will be used with a 1s time step and 250m horizontal resolution. The lowest vertical level is 75m above the surface, with increasing vertical grid spacing over 60 vertical levels. Storms are initialized with a warm bubble, and the thermodynamic environment is that of Weisman and Klemp (1982). Two microphysical schemes used include liquid-only and ice-inclusive with nine species of ice-phase hydrometeors. Six half-circle, three full circle, and three ¾-circle wind profiles with varying shear magnitude over the lowest 6 and 10 km serve as input; these are a subset of those examined in Adlerman and Droegemeier (2005). Mesocyclone evolution will be classified as non-cyclic, cyclic occluding, and cyclic non-occluding. Evolution will be compared between liquid-only and ice-inclusive simulations for each wind profile, and between these results and those of Adlerman and Droegemeier. Mesocyclone evolution is shown to be primarily cyclic non-occluding and cyclic occluding. In addition, the role of varying microphysical distributions in the RFD region will be briefly examined, and implications in low-level vertical vorticity distribution explored.