TitanWRF zonal mean streamfunction (a) and mass-weighted zonal winds (b). The streamfunction is time-averaged between ﹩{L}_{s}=81\mathop{.}\limits^{^\circ }6﹩ and ﹩{L}_{s}=156\mathop{.}\limits^{^\circ }4﹩, with the solid lines (nonnegative values) for clockwise rotation and the dashed lines (negative values) for counterclockwise rotation (as depicted by the arrows). The mean zonal wind is mass-weighted between 150 km (∼2 mbar) and 450km (∼5 nbar) at the selected L_s corresponding to the timing of the ALMA observations. Note that the wind profiles from L_s = 146° to ﹩{L}_{s}=156\mathop{.}\limits^{^\circ }4﹩ are mostly overlapped.