Environment Canada issued a number of weather alerts for northern Saskatchewan Monday.
Areas across almost the entire northern half of the province were under either snowfall or extreme cold warnings starting early Monday morning.
The weather service warned that wind chills were expected to push temperatures below -40 C.
Many areas were expected to see between 10 and 20 cm (4 to 8 inches) of snowfall starting Monday evening and into Tuesday morning.
People were urged to dress appropriately for the weather and to give themselves extra time to get to their destination if they planned to travel.