* WHAT...Significant icing. Total sleet accumulations less than one inch and ice accumulations between one tenth and one half with isolated accumulation up to one inch. * WHERE...Colbert, Franklin, and Lauderdale Counties. * WHEN...Until 6 PM CST Sunday. * 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. Power outages and tree damage are likely due to the ice. Travel could be nearly impossible.