Winter Weather Advisory in effect from midnight tonight to 4 PM PST Wednesday for greater Portland/Vancouver Metro area... the Willamette Valley... the lower Columbia and the I-5 corridor in Cowlitz County...
The National Weather Service in Portland has issued a Winter Weather Advisory for snow... which is in effect from midnight tonight to 4 PM PST Wednesday.
* Timing... another cold and moist system will bring the possibility of snow to The Lowlands of southwest Washington and the Willamette Valley tonight and Wednesday. The possibility of
snow will increase in after midnight and continue through Wednesday afternoon.
* Accumulation... total snow accumulations of 1 to 2 inches are possible above 500 to 800 feet tonight through Wednesday afternoon... with less than one inch of snow below 500 feet.
* Snow levels... snow levels will lower to near 500 feet in southwest Washington and the Portland Metro area... to near 800 feet in the south Willamette Valley tonight... and hold at those levels on Wednesday.
* Impacts... roads in the higher hills may be snow covered and icy tonight through Wednesday.