Typically I've found on this forum over the past 15-20 years (but especially the last 6-8 years) is that if no snowstorms are imminent on guidance, many will just look for deep blue temperature anomalies over us and if they don't see them, then it means we're not getting snow through the end of that 15 day ensemble period. It's roughly a 5th grade way of looking at the wx pattern, but you can only lead a horse to water.