The streamfunction for the wavenumber-2 asymmetry induced on the barotropic vortex in cyclonic shear. The cyclonic and anticyclonic gyres are indicated by L and H, respectively. The red hurricane symbol marks the center of the vortex, and the sense of the cyclonic primary circulation is shown in magenta. Note the correlations between inflow and cyclonic perturbation tangential wind and between outflow and anticyclonic wind. The black circle is at 2000 km radius.