Ontario, Quebec and Maritimes expected to see near -50 C temperatures this weekend CTV NewsFrom Alberta to the Maritimes, Canada faces a wind-chilled deep freeze this weekend CBCPolar vortex: What is the frigid arctic system hitting Canada? Global NewsDouble-digit negative temperatures warm enough to earn title of Saskatchewan’s “hot spot” discovermoosejaw.comWind chill expected to make parts of Canada feel like -50 C The Globe and Mail
