Over the past decade smog has become more and more of a problem where I live and ride. When I first moved here in 1985, there were occassional hazy days in the summer. By 1995 there were occasional clear days. Now, in the year 2000, there is nothing but hazy and hazier. We now have four seasons: Fall, Winter, Spring, and Smog. Smog season lasts from May to October.
If you actually want to see the views, and they are well worth seeing, from the southern part of the Blue Ridge Parkway, you better come here in the winter!