A cluster of four Washington wildfires have burned up to 100 homes and swelled to more than 260 square miles creating smoke and ash-filled skies over Fairchild Air Force Base, Washington, July 18, 2014. While Fairchild is not directly impacted by the fires, the smoke and ash may have medical implications, according to Washington State Department of Health officials. The fires are causing poor air quality in areas surrounding the fires. Wildfires contain fine particles and toxic chemicals that can be dangerous to breathe. For more information, visit the Washington State Department of Health public website at www.doh.wa.gov. (U.S. Air Force photo/Airman 1st Class Janelle Patiño)