Ahh, the good times are returning this afternoon. Now we know the atmosphere overhead is cold enough to support snowfall here in the Valley. Looks like everyone is going to get at least a quick burst of snowfall. Most likely the best place for good accumulation will be the Coast Range “upslope” areas from Sheridan to Banks/Vernonia where easterly flow is running into the Coast Range. This also gives a slightly deeper pool of cold air out there. No reason 2-3″ can’t fall in the next few hours.
Interestingly enough, the mixing of the easterly Gorge wind may keep us from getting much in Vancouver, Portland, and Gresham. We’ll get the evaporative cooling, but maybe just too much mixing to get temps down to 32 degrees.