I don't quite know how fast the wind was gusting this day, but I rode one of my classic bikes out a few weeks ago. The headwind was awful. I'm relatively small so I hid in the drops, got as low as I possibly could, and just pedaled. Got into a rhythm and just went. Then I turned right and had a cross wind. Even on my vintage steel bike with tiny tubes and box section rims, I was almost blown off my bike a few times by gusts, and considering that section is also a bit downhill, I was cruising at ~25-30 MPH. The wind literally blew me from the middle of the lane to the edge of the road and I had to lean into it. Afterwards I told my friend "I shouldn't have ridden today, it was dangerous."


Then I turned right again and was absolutely FLYING with a tailwind. Tailwind + a bit downhill = sustained 28-35 MPH riding.