* WHAT...Significant icing expected. Total sleet accumulations up to one inch and ice accumulations between four tenths and one half of an inch. * WHERE...The Piedmont of North Carolina, Upstate South Carolina, and northeast Georgia * WHEN...From 1 PM Saturday to 1 PM EST Monday. * IMPACTS...Significant ice accumulation on power lines and tree limbs may cause widespread and long-lasting power outages. Ice and snow covered roadways will become treacherous and impassable. Widespread power outages are likely due to the weight of the ice and snow on tree limbs and power lines. The outages could last for days in some areas. The hazardous conditions could impact the Monday morning commute.