The National Weather Service said a strong cold-weather system will bring rain and wind to the Western Washington lowlands Friday and heavy snow in the mountains, where a foot of new snow is possible in the Cascade passes.
Forecasters say temperatures will drop with weekend highs only in the 40s and lows in the 30s.
Cross-state drivers should prepare for snow in the mountain passes.
In Eastern Washington, the storm Friday also will bring rain and heavy snow in the mountains plus some of the coldest temperatures of the season, so far. Forecasters say highs Sunday will be near freezing and the lows Monday morning in the teens in parts of Eastern Washington.