Much of Massachusetts could see as much as a foot of snow fall during Saturday night's snowstorm. Here's when the storm might start and what it means for travel.

The National Weather Service has issued a winter storm watch for this weekend in Massachusetts. See how much snow is expected

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. The system is expected to turn into freezing rain this afternoon before tapering off in the evening hours,