We weren't able to get to the balloon rally flight on the Saturday launch, July 15, so we went up the next morning. But the balloons didn't fly.
To me, the morning was calm and clear. I am not a balloon pilot, but it seemed like the perfect day to fly.
I am not being critical, but I am curious. Obviously the experts know something (many things) that I don't. We did so much enjoy the "balloon glow" and fireworks Saturday night.