Ahead of each of these three short-wave troughs, the lake-effect snow bands tended to increase in intensity, inland extent, move southward, and even mimic the trough curvature. The sharpness and depth of each short-wave trough appeared to influence the relative changes in these characteristics. Sounding data along with MIPS observations taken during the passage of this first short-wave trough shows that the boundary-layer depth increased ahead of the trough passage both north and south of the lake-effect band. This boundary layer deepening resulted in a rapid increase in convective intensity. Following the short-wave trough passage, both the boundary-layer depth and the resulting convective intensity decreased.