A Winter Storm Warning for heavy snow mean severe winter weather conditions are expected or occuring. Significant low elevation snowfall is expected late Wednesday through Friday morning.
* Timing -- some light accumulating snow will be possible in the higher elevations early Wednesday morning. Heavier snow will begin Wednesday afternoon (possibly around 2:00 in Cowlitz County) and continuing into Thursday.
* Accumulation/Snow levels - a trace up to 3 inches of snow are possible early Wednesday morning in the higher terrain.
* Two to four inches are expected later Wednesday through Thursday down to the valley floor.
* Impacts - roadways may become icy and snow covered resulting in slick driving conditions which may significantly impact commuting both Wednesday and Thursday.