Kyle,
A couple of weeks ago, playing in the Links Championship at Elie, it got windy. On one hole (the 17th) I was actually blown off balance at the top of my backswing, at about the same time as the push trolley being used by one of my partners started, on a level surface and with a large bag on it, to blow down the fairway. Gusts that day were up to 40mph. Having worked in wind tunnels in an earlier career I always doubt it when people talk about playing in winds much faster than that. At 50mph you cannot stand up straight, so to swing a club would be impossible.
Mark