* WHAT...Heavy mixed precipitation. Additional snow and sleet accumulations between 1 and 4 inches and ice accumulations between one quarter and one half of an inch. Winds gusting as high as 40 mph. * WHERE...Portions of north central and northwest North Carolina and south central, southwest, and west central Virginia. * WHEN...Until 1 PM EST Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Significant ice accumulation on power lines and tree limbs may cause widespread and long-lasting power outages. Expect power outages and tree damage due to the ice. Travel could be impossible. The hazardous conditions could impact the Monday morning commute. Gusty winds could bring down tree branches.