Here it comes, severe cold and then snowstorms for the south coast (of B.C.) across the border into western WA and all the way east to Montana. I think Vancouver Island is going to get buried mid-week once the severe cold starts flowing out of the local fjords. Would expect about 15-30 cms snow in total around Vancouver and 25-50 cms possibly more locally in southeast Vancouver Island. This will play out as sleet or rain at first in Puget Sound but could turn to heavy snow by mid-week there as well. Definitely a heavy snow situation for the local lower elevation slopes (Whistler is already nicely covered).
Severe cold into the BC interior and across western Canada, could reach -45 C or lower in places.
Might reach -8 to -12 C here as well, after no real winter of any kind so far.