From the National Weather Service:
Special Weather Statement National Weather Service Taunton MA 324 PM EST Wed Dec 13 2017 CTZ002>004-MAZ017>024-RIZ001>008-140400- Hartford CT-Tolland CT-Windham CT-Northern Bristol MA- Western Plymouth MA-Eastern Plymouth MA-Southern Bristol MA- Southern Plymouth MA-Barnstable MA-Dukes MA-Nantucket MA- Northwest Providence RI-Southeast Providence RI-Western Kent RI- Eastern Kent RI-Bristol RI-Washington RI-Newport RI- Block Island RI- Including the cities of Hartford, Windsor Locks, Union, Vernon, Putnam, Willimantic, Taunton, Brockton, Plymouth, Fall River, New Bedford, Mattapoisett, Chatham, Falmouth, Provincetown, Vineyard Haven, Nantucket, Foster, Smithfield, Providence, Coventry, West Greenwich, East Greenwich, Warwick, West Warwick, Bristol, Narragansett, Westerly, Newport, and New Shoreham 324 PM EST Wed Dec 13 2017 ...Accumulating Snow Likely Thursday morning South Coastal Massachusetts and Rhode Island, including Cape Cod and Islands... Light snow will overspread Connecticut, Rhode Island and southeast Massachusetts between 4 AM and 7 AM. A band of moderate snow will likely then develop between 7 AM and 10 AM along the immediate south coast and islands, then quickly moving offshore by midday with dry weather to follow. This band of moderate snow will likely result in snow accumulations of 1-3 inches along the immediate south coast of Massachusetts and Rhode Island, including the islands. Given the timing and the cold airmass over the region roads will quickly become snow covered and impact the morning commute from Westerly to Newport to New Bedford to Cape Cod. Farther north snow intensity will decrease with just light snow or flurries across the remainder of Connecticut, Rhode Island and Massachusetts, with little if any snow north of the Mass Pike. However there is some uncertainty how far north the accumulating snow shield will track. There is a low probability that accumulating snow could reach Hartford to Providence to Plymouth. Stay tuned to later forecasts for any possible changes.