The overshooting top region extends as high as 19 km in the cloud ice field and develops a distinct, realistic AACP that undergoes a full lifecycle over the subsequent two hours. We show that the overshooting top of deep convection drives a hydraulic jump downstream. The overshooting air becomes negatively buoyant and plummets back into the anvil at speeds exceeding 80 m/s. The upper portion of the flow quickly transitions from supercritical to subcritical and highly turbulent in a rapidly-evolving hydraulic jump. This jump injects water vapor and ice into the lower stratosphere irreversibly, several kilometers above the top of the anvil cloud. We compare the AACP hydraulic jump to the well-known hydraulic jump/rotor flow in the lee of mountain ranges. High definition visualizations of water vapor, cloud, ice, and momentum will be presented to elucidate the flow of the AACP and its forcing mechanisms.