Fig. 1. Numerical initial-value solution showing blocking by orography during warm advection. Second and 3rd panels are at t=35 and t=50 (nondimensional). Color shading is potential temperature. Experiment is described in Garner (1999a).

. . Fig. 2. Schematic depiction of blocking by orography during warm advection. From Bjerknes and Solberg (1921).