* WHAT...Heavy mixed precipitation possible. Total snow and sleet accumulations up to two inches and ice accumulations between one quarter and one inch possible. * WHERE...Portions of north central, northeast, and northwest Alabama and southern middle Tennessee. * WHEN...From Friday evening through Sunday afternoon. * IMPACTS...The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Significant ice accumulation on power lines and tree limbs may cause widespread and long-lasting power outages.