Ensembles continue to show high confidence in a Nor`easter
developing this weekend off the eastern seaboard as a digging
eastern trough invokes cyclogenesis Saturday into Sunday. What
we are still uncertain of is the exact track of the low tied to
the timing of (or if) the upper low closes off from the flow.
The snowiest scenario is one in which the low closes early is
deeper. There is really only one cluster representing 25% of
guidance at this point that allows for this to happen. Should
it occur, probabilities of snow are mostly confined to the high
terrain of West Virginia (60% chance of >1", 30% chance of >3",
10% chance of >6"). 75% of guidance has the low closing too
late (and too east) or not deep enough to suggest much appreciable
snow accumulation in the forecast area at this time.