With Sunday’s cooler, but windier conditions, crews on the Big Horn Fire in eastern Klickitat County will continue to mop-up hot spots and will be working to improve already constructed containment lines and increase the percentage of containment.  Overnight operations over the weekend had a night of cooler temperatures with minimal winds.  Crews worked on several hot spots in the Alder Creek and Pine Creek drainages.  Nighttime operations bring the ability to better visualize some areas of smoldering fuels.  Unmanned Aviation Support is being used to help provide infrared analysis of different areas of the fire, and help firefighting crews locate areas of high heat and threats to containment lines.  The Klickitat County Emergency Management Department announced late Sunday afternoon that Level 2 evacuation advisory areas had been downgraded to Level 1, and areas previously in Level 1 had their advisory removed.  Containment is at 52%, and the fire is 50,061 acres in size.