I took a blend of the models using a 20:1 ratio. Snowfall ratios could end up being 25:1 with this system but the biggest question in my mind is how far north and west do the heaviest bands of snow make it across northwestern Virginia and the Potomac Highlands of Maryland?
I think 6 to 10″ is reasonable for the immediate Metro Area, including everyone inside the urban heat island of DC, Arlington and Alexandria. So who has the best chance of getting the jackpot?