The National Weather Service issued a winter weather advisory at 2:55 a.m. on Saturday valid from 7 p.m. until Sunday 1 p.m. for Barnstable, Dukes and Nantucket counties.

A winter weather advisory is in effect in Massachusetts today as several inches of snow is expected to fall across the state, according to the National Weather Service's Boston office. Snow is already beginning in western Massachusetts as of 8 a.m. Thursday, and it will pick up in the eastern part of the state later this morning.