Whistler, B.C., could see wind chill make it feel like –20 C
Environment Canada has also issued warnings for north and central coasts, Rocky Mountain area
Dangerous wind chill conditions that have triggered warnings in British Columbia's North Coast and Rocky Mountain regions have spread to parts of the southwest, just north of Metro Vancouver.
Environment Canada has issued an Arctic outflow warning for the Howe Sound and the Sea-to-Sky corridor into Whistler and Pemberton to the north.
The weather agency says low temperatures and strong outflow winds will combine to create wind chill that will make it feel like –20 C during the nights and mornings.
Environment Canada warns that frostbite and hypothermia can develop in minutes without proper clothing under those conditions, and residents are asked to "cover as much exposed skin as possible" when going outside and to stay dry.
The outflow is expected to end by Tuesday afternoon, the forecast says. The weather event refers to Arctic air that makes its way to the B.C. Interior leaking out to the B.C. coast in the form of outflow winds.
Forecasters had told CBC News that colder-than-usual temperatures would stick around in B.C. this weekend and early next week.
The weather agency had previously issued similar Arctic outflow and extreme cold warnings in the North Coast including Terrace and Kitimat, as well as the areas around Yoho and Kootenay national parks in the Rocky Mountains, and both warnings remain in place until Tuesday.
Weather data today shows wind chill values making it feel like –28 C at Yoho National Park, –27 C at Kootenay National Park and –22 C in Terrace.