The B2K method can be very useful for highlighting the potential for slow-moving supercells. Can have slow-moving supercells with relatively strong shear (i.e., 0 6-km bulk shear ? 25 m s-1). The other propagation components of storm motion (i.e., gust front, boundary layer convergence, storm mergers, and orography) may also help to effectively "anchor" supercells.