School bus service for the Prairie South, Holy Trinity and Cornerstone Christian has been canceled Thursday due to cold weather. 

According to Environment Canada:

"A period of very cold wind chills is expected. An arctic high-pressure ridge has settled in over Saskatchewan. Temperatures under this ridge are very cold... early morning temperatures are in the minus thirties with a few localities sneaking past the -40 mark. Even with winds of 5 or 10 km/h, extreme wind chill values of -40 to -50 are widespread. Wind chills will moderate somewhat late this morning, but extreme cold is expected to return to most regions tonight.

Extreme cold puts everyone at risk. Keep emergency supplies in your vehicles such as extra blankets and jumper cables. If it's too cold for you to stay outside, it's too cold for your pet to stay outside. Extreme cold warnings are issued when very cold temperatures or wind chill creates an elevated risk to health such as frostbite and hypothermia. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to SKstorm@canada.ca or tweet reports using #SKStorm."