The Boston area saw the season's first real glimpse of winter on Tuesday morning, with a nasty mix of snow, sleet, frozen rain and slush accumulating just in time for the morning commute.
With temperatures above freezing, fog also became a factor for those headed to work.
The National Weather Service predicted that the wintry weather pattern will stick around until about 1 p.m., before turning into light rain.
The Massachusetts State Police issued a warning to motorists Tuesday, tweeting, "#MAtraffic many spinouts and crashes throughout the state due to road conditions. #SlowItDown."
There have been several traffic accidents throughout the state, police said.
MassDOT encouraged travelers to use public transportation if possible. Drivers were asked to go slowly and prepare their cars for slick road conditions.
“MassDOT also reminds drivers to use common sense while driving near snow plows, and remember that the road in front of the plow is usually much worse than the roadway behind the plow,” MassDOT said in a press release.
The MBTA was running on normal schedule after a signal issue caused moderate delays between JFK/UMass and Braintree at about 6:15 a.m.