Originally Posted by
Kurt Erlenbach
One of the coolest things to happen with wind is when you have a strong (20 - 25 mph) wind directly at your back and you're able to exactly match the speed. All the wind noise in your ears fades away, but you still the sound of wind blowing through the trees by the road. It's a really nice effect, until you remember that you have to turn around and head back home.
And one of the worst things to happen with wind is when you're climbing a long hill on a hot sunny day with a tailwind that exactly matches your speed. Zero cooling, you create a bubble of air around you with 100% humidity from your own sweat.
But 5 mph headwind all the way around a route? Double your speed and you'll have a 10 mph headwind!