Environment Canada has expanded an arctic outflow warning for the North Coast.
Forecasters have added Stewart to the list of affected communites being buffeted by frigid arctic air, including Terrace and Kitimat.
The weather office says strong outflow winds generated by a ridge of high pressure over the interior is continuing to produce cold windchill values between minus 20 and minus 30 degrees.
Officials are reminding residents to minimize skin exposure as any outdoor activity increases the risk of frostbite
Environment Canada says there is an end in sight to the deep freeze. It expects the arctic outflow conditions should begin to taper off late Saturday.
The weather office has also continued an extreme cold warning for Dease Lake with wind chill values dipping to minus 45 degrees.
Officials are urging resdients to be wary of cold-related symptoms like shortness of breath, chest pain, muscle pain and weakness, numbness and colour change in fingers and toes.