So I ran across this wind chill chart geared towards motorcycle riders:
http://3.bp.blogspot.com/-HrbLdfclw8U/TbIcYRsqC2I/AAAAAAAAAZQ/UrNjSInoXts/s1600/motorcycle+wind+chill+chart.jpg
Studying that chart, I notice that the faster you drive, the lower the temperature feels. All as expected.
Then I notice that the hotter it gets, driving faster feels less cool. For example, at a 50-degree air temp and at 30 mph, the wind chill drops the felt temp to 28, a decrease of 22 degrees. But at 90 degree air temp and that same 30 mph, it only drops the felt temp by a 1 degree to 89. Hmm. Okay...
And then it gets really weird. At 95 and 100 mph, this chart claims that anything above 5 mph actually makes you feel HOTTER, rather than cooler. Now I'm skeptical. How can that be? I wouldn't think it possible for the wind chill temperature to get higher than the actual temperature.
So driving fast on a really hot day through the desert isn't going to make you feel any cooler? At least not temperature-wise, according to this chart. But of course, driving fast on a motorcycle makes you "cool" in another sense.
Can any of you thermodynamic geniuses out there explain this?