I was in a vendor's booth when this blew through. The winds came out of nowhere, blowing up more dust and debris than you'd think would be reasonable given the weather just 30 seconds earlier.
My first thought when it happened was that I hoped all the aircraft in the air were ok.
Only Sean Tucker would say that it was fun to be flying in that wind
I really wish I could've seen his landing, that would've been interesting.
40kt winds obviously pose no real problems to enroute aircraft but if you're flying aerobatics low to the ground and the winds come out of nowhere, I imagine that could be a problem in some cases. Thankfully these guys did just fine.