After several provinces underwent chilly overnight temperatures on Jan. 10, extreme cold warnings affecting parts of Ontario and Quebec continued to be in effect on Jan. 11. The extreme cold alerts, issued by Environment Canada, affect parts of northern Ontario, northern and southern Quebec, as well as New Brunswick and Labrador. On the morning of Jan. 11, temperatures in Montreal fell to -25 Celsius, with the wind chill making it feel closer to -34°C. In Toronto, temperatures dipped as low as -21°C, or -34°C with wind chill, in the early hours of Jan. 11. As of publication time, the only extreme cold alerts still in place in Ontario were for the Cree First Nation reserves of Peawanuck and Fort Severn, both located in Kenora District. Both communities are expected to face temperatures between -30 and -32°C (with wind chill values near -45°C) starting tonight and continuing into the morning of …