I will be talking about Wednesday's potential storm later, but one thing is certain...there will be serious icing conditions in a few hours. Today temperatures got above freezing in most of the region and there was considerable sun. The unplowed roads became wet and slush and tonight many will freeze. We have clear skies that will promote good radiational cooling to space. Temperatures will drop into the lower 20s for most and into the teens in the normally cooler spots (away from water, in valleys or low areas). Snow really promotes nighttime cooling since snow is an excellent radiator in the infrared (that point and the fact that snow is a good reflector of solar radiation is why most record low temperatures occur when snow is on the ground).
So tomorrow morning may be a real problem with perhaps more troublesome conditions than this morning in some locations.
I am going to look at potential for snow from the upcoming storms...and it clear we have two shots at it...Wednesday and Thursday. But tomorrow, other than icy, should be a benign day with no new accumulations.