Environment Canada has issued an Extreme Cold Warning for Winnipeg, just in time for Christmas.

Cold air has moved into southern Manitoba behind a cold front which entered the province on Saturday. Wind chill values near or below -40C are expected for the city throughout the Christmas period, Environment Canada said.

They recommend dressing warmly in layers, with a wind resistant outer layer. Frostbite can develop within minutes on exposed skin, they said.

Environment Canada also recommends keeping emergency supplies in your vehicle such as blankets and jumper cables.