The cloud water (red contours), precipitating water (blue shades) and relative wind (arrows) of the propagating convective cell are shown as a snap shot at 1 hour 25 min. after the initiation of the first cell at x=0 for the two case in which the domain limits are placed differently: (a) the cell is just crossing the interface at x=48 km, between the domains of 1 km and 2 km resolution; and (b) the cell is still inside the domain of 1 km resolution that extends to x=72 km. The two cases will not produce exactly the same result, but their similarity demonstrates the working of the new nesting algorithm.