About 15 years ago I was riding Vt late fall on my f650, Heading north at a good clip with my buddy riding behind on his R bike, Air was chilly near sunset when a wind shift brought up a bunch of leaves and dirt from the woods . I remember Ed saying "oh this can't be good" in the coms when the wind hit my bike sideways pushing it toward center line. There was a truck coming south as I braced against the wind Hard! My bike was in a full right turn style lean 45 degree lean easy. when the entire bike started to slide toward the oncoming truck. I could see the drivers terrified face and was sure that I was going under him when as fast as it started, the bike just stood up and stayed on it's line. My only guess is that as I got next to the truck it blocked the wind enough to save me. Needless to say I had my fill of riding that day so we found a piece of vacant land and set up camp for the night. I went with a grippier tire after that but I have never had a similar situation since.