Good morning. Our next winter storm is expected to impact southern New England tonight into Monday morning. Attached is a briefing package to supplement the details below. Please stay tuned for additional emails on Sunday. *Changes:* - Winter Storm Watch upgraded. Winter Storm Warning now in effect for most of Southern New England. Exceptions: Winter Weather Advisory for Cape Cod, Franklin County, and Western Hampshire County. *What:* - Snow with accumulations of 6 to 10 inches across much of the region. Snow accumulations of 3 to 5 inches in Franklin and Western Hampshire Counties. Snow accumulations of 3 to 5 inches on Cape Cod, especially the Upper Cape. - Impact to the Monday morning commute. - Risk for isolated power outages from northern CT into northwest RI and interior MA if higher snow amounts are realized. *Where:* - Snow across all of southern New England; heaviest snow most likely over Rhode Island and central/eastern MA. On Cape Cod and the islands snow changes to rain overnight. *When:* - Snow develops in Connecticut and Western MA between 6 and 8 pm Sunday evening, and in Central/Eastern MA and RI between 8 and 10 pm. - Snow ends Monday morning between 4 and 6 AM in the west and in Rhode Island, and 6 to 8 AM in Central and Northeast MA. - Heaviest snow generally 10 PM Sunday to 6 AM Monday *Uncertainty:* - High confidence in a plowable snowfall. The greatest uncertainty remains in where the band of highest snow totals will set up, as well as how far north the rain/snow line reaches. Please let us know if you have any questions or concerns. If you have any questions or would like more information, don't hesitate to contact us via this email address, on NWSChat <https://nwschat.weather.gov/>, or at the following: National Weather Service Boston/Norton, MA 46 Commerce Way Norton, MA 02766 508.622.3280 Website <http://www.weather.gov/boston> | Facebook <http://www.facebook.com/NWSBoston> | Twitter <http://www.twitter.com/NWSBoston>