From the National Weather Service:
...WINTER STORM WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO
7 PM EST SUNDAY...
* WHAT...Heavy mixed precipitation expected. Total snow
accumulations of 5 to 8 inches and ice accumulations of one
tenth to four tenths of an inch expected. Winds gusting as
high as 35 mph.
* WHERE...Hampden and Southern Worcester Counties.
* WHEN...Mainly this evening through Sunday afternoon.
* ADDITIONAL DETAILS...Heavy snow develops this evening, changes
to a period of freezing rain and sleet in most locations after
midnight. Temperatures plunging through the 20s by mid afternoon
Sunday will result in a flash freeze and roads becoming icy. Any
mixed precipitation will end as a period of snow Sunday
afternoon. Travel will be very difficult and hazardous tonight
through Sunday afternoon, along with poor visibility at times.
A Winter Storm Warning means significant amounts of snow, sleet
and ice will make travel very hazardous or impossible.