Take a look at NYC's records in precip and you'll see .01-.02" of liquid precip translating to only .10-.25" of snow.
Take a look 40 miles south, that becomes.15-.25" of precip translating to 2-4" of snow.
All it took was less than an hour of driving to see a drastic difference in where the bands in precip were, and that's all thanks to the stronger northwesterly winds that day. With that in mind, take a look at the next two pictures to see just how close we may be getting to more snow over the new two days (click to enlarge pics).
These are the reasons the models were unsure about Sunday's storm, why they were unsure about today's possible precip, and were also on the fence about tomorrow night's as well. While they were giving the illusion of simply flipping a coin and telling us snow or sunshine, it's more of the fact that these weather systems keep walking the line of doing one or the other to us making it harder to get a grasp of what will happen.
For now though, sunshine and rainbows. Well, sunshine and warmth as we'll see 40's again by Friday. Melt snow, melt.