Some areas of Massachusetts already had about a foot of snow before dawn from a storm that was expected to last all day.
The National Weather Service reported an unofficial measurement of almost 14 inches in Norwell as of 5 a.m. Monday.
Fitchburg, Leominster, Lunenburg and Ashby in north-central Massachusetts were all at 11 inches or more.
Logan Airport in Boston had eight inches.
The state Transportation Department says it had deployed more than 3,100 pieces of equipment clearing snow, sanding and salting.
The speed limit on the Massachusetts Turnpike has been reduced to 40 miles per hour along the entire length of the highway.
The good news is that were no reported power outages early Monday.
