Every year, sometimes in September, but usually in October just before Halloween, when California's wild vegetation is driest and most combustible, high pressure over the Great Basin and Colorado Plateau unleashes an avalanche of cold air towards the Pacific coast. As this huge air mass descends, it heats up through compression, creating the illusion that we are being roasted by outbursts from nearby deserts, when in fact the devil winds originate in the land of the Anasazi - the mystery people who left behind such impressive ruins at Mesa Verde and Chaco Canyon.

LRB 15 November 2007 | PDF Download