* WHAT...Heavy mixed precipitation. Additional snow and sleet accumulations around one inch, locally up to two. Ice accumulations of one quarter to one half inch. * WHERE...The northwest Piedmont of North Carolina. * WHEN...Until 1 PM EST Monday. * IMPACTS...Significant ice accumulation on power lines and tree limbs may cause widespread and long-lasting power outages. Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the Monday morning commute.