EXTREME COLD WARNINGS ACROSS CANADA

In British Columbia, the agency warned that the Yoho Park and Kootenay Park region could see wind chills as low as -40 C due to a cold arctic ridge of high pressure that it predicts will remain over the region for several days.
Much of Alberta, Manitoba and the entirety of Saskatchewan were also subject to the warnings, and Environment Canada says the frigid temperatures are expected to continue through the end of the week.
Environment Canada issued the warning for parts of northern Ontario too, along with a snow squall warning for Sault Ste. Marie, Ont.