All of Western Massachusetts is under a Winter Storm Watch from the National Weather Service from Tuesday afternoon through Wednesday morning.
Heavy snow and sleet are possible along with a period of freezing rain, according to forecasters.
Four to seven inches of snow and sleet are possible and ice accumulations could get up to two tenths of an inch in Hampden, Hampshire and Franklin counties.
Advisories begin first in the Berkshires Tuesday before making its way through the rest of western Massachusetts.