Where

Is that mysterious line where humidity turns into dry heat? I lived in Dallas for years and that was a dry heat. But just a few hundred miles south and walking a mile, turns your skin into a warm slushee. I know I've been complaining about the heat alot, but without ac, I don't think anyone would live below Tennessee. There would just be this great expanse of tropical wasteland. I'm about 8 miles from WalMart in Natchez, and looking forward to some of that ac. Maybe there will be somewhere I can drink a cola, sit upright and enjoy the ac. Eight minutes by car, 3-4 hours by foot. Ugh! My new growth of hair doesn't help. I started with a crewcut but now its a nice thick mat of sweat soaked heat trapping annoyance.