Bedford County, Virginia — The Matts Creek wildfire is now 6,835 acres, with containment up from 2 to 15 percent, according to the US Forest Service. Early Saturday, mapping had the fire at just under 6,000 acres. Forestry officials said winds would take smoke south of the fire Saturday. Very unhealthy and hazardous air quality was expected in Big Island Saturday afternoon and evening. Smoke models showed the heaviest smoke staying east of Bedford, affecting Forest and Altavista until Saturday night, but a slight shift could take dense smoke to Bedford or Lynchburg. For much of the last week, the smoke had been moving north, creating hazardous conditions in Lexington and unhealthy conditions as far north as Winchester. A wind shift Friday night was expected to push the smoke east — perhaps as far as Washington D.C. — before swinging around to pass through communities like Amherst and Lynchburg