From the National Weather Service:
WINTER STORM with 6-12" forecast; along with blustery NE winds, blowing & drifting, near white out conditions possible; watch in effect.
What / When / Where ...
Moderate to heavy snow developing prior to the AM Thursday commute, intensifying through the morning and reaching its height roughly around midday into the afternoon hours, tapering through the evening into the overnight hours. Impacts to all of Southern New England.
Roughly 6 to 12 inch amounts over all of Southern New England except far Northwest MA and the immediate south-coast of MA and RI including Cape Cod and the Islands.
Accompanying strong northeasterly winds. Gusts up around 40 to 50 mph possible across Southeast MA including Cape Cod and the Islands.
What we know ...
Certain of a significant snow event and many locations reaching warning-level criteria for snow. A plowable snow. Impacts to both the Thursday AM and Thursday PM commute. Hazardous travel conditions are anticipated.
There will be issues of blowing and drifting especially in areas where snow is light and fluffy along with forecast blustery northeast winds.
Winds will turn out of the northwest as the storm exits overnight Thursday. Could be continued issues of blowing and drifting snow.
Near white out conditions will be possible.
What we don't know ...
Exact specifics concerning snowfall amounts, gusty winds, and the timing and impacts of both. Should be able to iron these out as we get closer to the event.
Concerning coastal flooding, we're still evaluating, but right now believe there will not be much surf and waves to make an impact. Worst case scenario will be pockets of minor flooding along the East MA coastline. We'll continue to evaluate closely as we get closer to the event.