Would not throw in the towel on weekend storm yet, both GFS and NAM have decent energy moving into CO from WA (I call this the marijuana express) and the flow ahead is rather featureless, would not take much to get a low to form in OK or TX on 29th or 30th and then phase with the ambiguous 500-mb reflection over Ohio and PA. Whether it amounts to a real storm or just a few inches of snow, I think something is still going to happen there. As to the Jan 3-4 event on CMC, that is not so late t