A fresh layer of snow piled up in parts of the Maritimes on Wednesday.
10 cm was recorded in Halifax, where The Weather Network's Nathan Coleman says people were left salting and scraping their cars through the evening hours.
Parts of Newfoundland are in for another round of snow as well with up to 15 cm in the hardest hit places through Friday.
"In addition to the snow, the passage of an Arctic front will result in frigid conditions right across Atlantic Canada," says Brian Dillon, a meteorologist at The Weather Network. "For southern areas in the Maritimes, the windchill will make it feel closer to the -20s, while places further north will be feeling more like the -30s."
A westerly flow of Arctic air will make the temperature feel like -50 in parts of Labrador Friday and only a bit warmer in northern Newfoundland as well.
According to Environment Canada, the extreme wind chill values could stretch into the weekend.
Residents are urged to avoid extended time spent outdoors as frost bite and hypothermia can set in within minutes when temperatures plunge.