Counties across Massachusetts could see up to 10 inches of snow on Sunday, according to the National Weather Service.

We've got some accumulating snow to kick things off. That will be followed by the coldest airmass of the winter season thus far. Finally, in the longer range, it appears that an active/stormy pattern is going to unfold over the next few weeks across the eastern United States.

A winter storm watch has been issued in Massachusetts ahead of a significant winter storm expected to make for a messy Sunday night before some of the coldest air of the season moves in.