IG news Update,HALIFAX – As a massive Arctic air mass expanded over the eastern half of the country on Friday, Environment Canada issued an unusually long list of extreme cold warnings, covering six provinces – from Ontario to Newfoundland and Labrador. “They are calling for -43 C to -47 C across the province with wind chill. In Ontario, the extreme cold that gripped the northern half of the province through the week had reached the south by Friday. Environment Canada said the wind chill index in the Greater Toronto Area could read -30C, while in Ottawa it could feel closer to -40C. No extreme cold warnings have been issued.