* WHAT...Heavy mixed precipitation possible. Total snow accumulations less than one inch and ice accumulations of one tenth to one half of an inch possible. * WHERE...Portions of northwest Oregon and southwest Washington. * WHEN...From Thursday afternoon through Friday afternoon. * IMPACTS...Power outages and tree damage are possible due to the ice. Travel could be difficult. The hazardous conditions could impact the Thursday afternoon commute and the Friday morning commute. * ADDITIONAL DETAILS...Temperatures appear most likely to warm above freezing Friday afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS...