Predicted terminal velocities ν_∞ for all models normalized to the effective escape velocity at the stellar surface ν_esc. Symbols and color codings indicate temperature; black symbols represent the H-poor models. Including the outliers towards high ν_∞/ν_esc, the average of the H-rich models increases with Z_CNO, from 2.6 to 3.9 to 4.7 for Z_CNO = 0.002, 0.02 and 0.04, respectively.