This document presents results from a study measuring the time-averaged film thickness of water running back over a NACA 0012 airfoil shape under wind speeds of 15 m/s and 25 m/s. It also shows the time sequence of the surface water runback process over the airfoil at a wind speed of 25 m/s at times of 0.2s, 0.5s, 1.0s, and 4.0s after an initial time t0.