QUICK FACTS Location: Deschutes, Western Grant, Klamath, Eastern Lane, and Eastern Wheeler counties End date: Tuesday, Oct. 15 Smoke source : Fires in Oregon and Northern California The Oregon Department of Environmental Quality extended an air quality advisory Friday, Oct. 11 due to smoke from fires in Oregon and northern California. Smoke is expected to be worst in areas near ongoing fires, including the Mt. Bachelor area (Bend) and Rail Ridge (Dayville). The following areas are affected: Deschutes County (Western) Grant County Klamath County (Eastern) Lane County (Eastern) Wheeler County DEQ expects the air quality advisory to last until Tuesday, Oct. 15, when forecasted rains are expected to reduce fire activity. DEQ also expects intermittent smoke in Crook, Eastern Douglas, and Southern Lake counties. Smoke levels can change rapidly depending on weather. Check current conditions on the Oregon Smoke Information Blog , DEQ’s Air Quality Index , or by downloading the free OregonAIR