The storm that gave New England a white Christmas is being replaced by dangerous cold.
The National Weather Service issued wind chill advisories for parts of northern Vermont, New Hampshire and Maine on Tuesday, saying frostbite was possible with as little as 30 minutes of exposure.
Temperatures were expected to dip below zero in northeastern Vermont, with dangerous wind chills of 15 to 25 below zero Tuesday night. The wind chill could reach 40 below zero in some areas Wednesday night and Thursday.
Daytime temperatures in Massachusetts, Connecticut and Rhode Island are not expected to rise out of the 20s all week and could dip into the single digits.
Boston Mayor Marty Walsh is urging residents to take precautions and exercise care during the low temperatures. He also encouraged residents to check on elderly or disabled neighbors and to be careful when using space heaters.
"We want to make make sure each and every Boston resident will be safe and warm when bitterly cold weather arrives this week," Walsh said. "In times like these, it's vital for residents to look out for one another, and I encourage all Bostonians to reach out to the City if they or their neighbors need help this winter season."
Information about shelter for the homeless can be found at Boston.gov, and anyone needing a warm place to visit during the day can stop by one of the Boston Centers for Youth & Families' 36 community centers.
New England returned to normal after Monday's storm brought up to 7 inches of snow and high winds caused scattered power outages.
Boston's Logan Airport got less than three inches of snow, but it was enough to cause a jet to slide off a taxiway on Monday evening. The airport was also shut down to all incoming or outgoing flights earlier in the day.
On Cape Cod, winds gusting up to 76 mph brought down trees and knocked out power to thousands. A downed pillar also closed eastbound lanes of the Sagamore Bridge in Bourne for a time on Monday.