In June of 2011 while the big AZ fire was burning I was riding from St Louis to Colorado Springs on I-70 and I had my Vstrom at a pretty stead 40* angle to go straight, then it would gust and a couple times blew me onto the shoulder or left lane before I could correct it...twas not a fun time crossing Kansas!!
I mentioned the AZ fire because there was a pretty good haze in KS and you could definately smell the smoke!!
Check out my Spotwalla link below for the map of that trip