DEQ release – UPDATE: DEQ also expects intermittent smoke in Harney and Lake counties on Tuesday and Wednesday. The Oregon Department of Environmental Quality issued an air quality advisory Tuesday for Central and Southern Oregon due to smoke from fires in Oregon and Northern California. The length of the advisory varies by location. The agency issued an air quality advisory for the following areas: Central and eastern Douglas County due to smoke from the Tyee Ridge Complex through Tuesday evening. Western Crook, Deschutes and Jackson counties due to smoke from fires in Oregon and Northern California through Wednesday afternoon. Northern Deschutes, Josephine and Klamath counties due to smoke from fires in Oregon and Northern California through Thursday morning. DEQ expects intermittent smoke in central and eastern Douglas, Harney and Lake counties on Tuesday and Wednesday. Air quality may improve during Tuesday evening, but smoke is likely to return Wednesday morning.