There is a high ceiling for how much snow the storm could generate, but it could also just produce a glancing blow or even head out to sea with little impact.

Moisture feeding from the south will bring first snow and then a changeover to freezing rain and all rain across New England. This slow-moving storm could result in sizable snow, ice and rainfall totals, making it potentially the most impactful storm so far this winter.

A storm arriving in southern Maine on Saturday, just two days after a combination rain-and-snow storm swept through the area, is likely to bring another round of cold, wet weather.