Motorists are being warned to drive with caution as high winds and blowing snow are resulting in reduced visibility on highways.
An extreme cold warning is in effect for Medicine Hat and much of the southern part of Alberta, Saskatchewan and east into Manitoba and Ontario. Overnight expect a few clouds, with winds up to 15 km/h. High -26 and extreme wind chill -45. "This very cold airmass, combined with brisk winds, produces wind-chill values from minus-38 Celsius to minus 44", Environment Canada said in a statement issued early on Wednesday morning.
People with pre-existing heart conditions or chronic respiratory illness, infants and young children, people on certain medications, people who work or do physical activities outdoors for extended periods, and people who are homeless or marginally housed are also at risk. Temperatures will moderate slightly during the day and extreme wind chills will return tonight.
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"Below normal temperatures will persist for the rest of the calendar year in southern Saskatchewan", says Environment Canada in the weather warning.
Residents are being advised to walk carefully and cover up any exposed skin and wear wool or synthetic fabrics instead of cotton.
Keep emergency supplies in your vehicle such as extra blankets and jumper cables. Those wind chills are expected to remain throughout the night and into the morning.
It also advises people to continue to monitor alerts and forecasts issued by Environment Canada.