Thad said that the friendly ranger said: ...is the clouds"). He even added that the winds "generally" turn to the SW at night, and any leftover smoke "should" drain into the West Clear Creek basin. Given our site is higer, we "should" be OK... I'll ask Brian directly: do winds in northern Arizona really turn to the southwest at night? Why do planes down here always turn around at sunset, and take off and land facing east at night? Tom -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.