UPDATE: The extreme cold warning mentioned in this story has ended
An extreme cold warning is back for parts of Saskatchewan.
Environment Canada said an arctic ridge of high pressure remains over the province, bringing below normal temperatures.
Extreme wind chills of -40 or colder will continue through most southern regions Tuesday morning.
The extreme wind chills will generally ease during the morning, but are likely to redevelop overnight in the northern grainbelt and southern parkland areas.
Frostbite can occur in less than 10 minutes at these values.
Anyone heading outside should dress warmly and in layers and ensure the outer layer is wind resistant.
People working outside should take regular breaks to warm up.
Cold-related symptoms including shortness of breath, chest pain, muscle pain and weakness, numbness, and colour changes in fingers and toes.
Emergency supplies, such as extra blankets and jumper cables should be kept in vehicles.
The average high for this time of year in Saskatoon is -8 C, and in Regina -7 C.
For the latest conditions and warnings, download the SkyTracker weather app.