Slow down and use caution while traveling. Prepare for possible power outages.

WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 AM PST EARLY THIS MORNING... * WHAT...Freezing rain. Additional ice accumulations of a light glaze. * WHERE...Lowlands of Thurston, western Lewis, and far southeast Mason Counties, including Harstine Island, Olympia, Centralia, and Toledo and Far southwest Mason County and the interior lowlands of Grays Harbor County, including Matlock, McCleary, and Montesano. * WHEN...Until 4 AM PST early this morning. * IMPACTS...Very slippery sidewalks, roads and bridges are possible.