Here is a video of windrows forming on Sheepscot Lake. The white streaks of foam are the windrows. The formation of windrows is described in Dommermuth, D.G., Lewis, C.D., Tran, V.H., and Valenciano, M.A. (2014) “Simulations of wind-driven breaking ocean waves with data assimilation,” Proceedings of the 30th Symposium on Naval Hydrodynamics, Hobart, Tasmania, Australia. The paper is available at http://tinyurl.com/y79sm9rp. Videos associated with the paper are available at http://tinyurl.com/y8madvbw. Animations of windrows forming are available at these links: https://youtu.be/6r9JbrykUcE, https://youtu.be/JnLGxS3c4dA, https://youtu.be/IhrHRJSYfPE, and https://youtu.be/Sbn23QN3jD4.