Maybe but the guidance distinctly has a problematic flow into Canada still present in the first few days of December....which it then backs off as we get into the post-12.5 range....now maybe that's wrong and the amplitude out west verifies sharper prior to 12/5....then ok, fine, we could increase the odds of a snow event if that occurred.
Obviously the extra 7-10 days of climo also helps if we're comparing 12/2 to 12/11 or something...no denying that.