Trough to crest? Vertically? Horizontally? So you're discussing wavelength (actually one-half the wavelength--trough to crest measured horizontally) and not what people usually understand as wave height--the vertical distance from the bottom of the trough to the top of the crest. That's a whole 'nother story. But you're sticking with your estimate of 40 mph wind as an estimate. Or are you asserting that you did measure the wind velocity with an anemometer? Needless to say, I'm confused by your post.
I suggest again that you get an anemometer, and also read a book like Willard Bascom's classic Waves and Beaches.
Edited by Strange_Magic (09/02/13 02:26 PM)