When it sounds like a frieght train out there (due to the cables holding the tower) you know the winds are up in the 50-80 range. Now that I think of it,and this is true. When I left for work yesterday morning,it was loud,but I couldnt feel the wind. Is it possible the wind didnt reach down to where I was? Some barametric thing? It did get cold real fast when the wind did hit the lake.