* WHAT...Heavy mixed precipitation. Additional snow and sleet accumulations up to one inch and ice accumulations between two tenths 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 will be 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.