Environment Canada has issued an extreme cold warning for most of Manitoba including the City of Winnipeg.

Very cold wind chills are expected tonight into Friday afternoon.

Wind chills near -40c are expected to redevelop in southern Manitoba as cold arctic air settles over the province.

In the north wind chills values of between -45c to -50c are expected to last for the rest of the week, through the weekend and into next week.

With wind chills in the extreme range, frostbite is a real concern as exposed skin can freeze within minutes. Hypothermia is also a concern for those working outside or living without adequate shelter.

Environment Canada issues extreme cold warnings when very cold temperatures or wind chills increase the risk to health.