* WHAT...Heavy mixed precipitation expected. Total 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 northwest North Carolina and southwest Virginia. * WHEN...From 1 PM Saturday to 1 PM EST Monday. * IMPACTS...Roads will become slick and hazardous. Significant ice accumulation on power lines and tree limbs may cause widespread and long-lasting power outages.Travel could be nearly impossible. The hazardous conditions will impact the Monday morning commute.