The Santa Ana winds are warm, dry winds that originate in the high desert area of the Great Basin and blow down onto the coastal plain of Southern California. The winds, which can travel at 111 mph, last from autumn to early winter.NPR: Fabled Santa Ana Winds Fuel Wildfires in California (October 24, 2007)
Wildfires
The Santa Ana winds often perpetuate existing California wildfires by fanning their flames, thus making them larger and more difficult to extinguish. These winds can quickly change direction making the fire spread faster.USAToday: Mountains help create hot, dry Santa Ana winds