Extremely low overnight temperatures created icy road conditions as city crews continued to clear priority routes in Calgary on Christmas Eve.
A brief but intense bout of blowing snow made for difficult driving during the afternoon commute Thursday.
Chris McGeachy, spokesperson for the city's roads department, says crews will work around the clock — even through the holidays — to get the snow cleared.
"Crews right now are plowing through lanes on high volume priority one routes I saw for the first 24 hours after snowfall, or until they're completed," he said.
"That's what we focus on — those high volume roads or your roads that carry over 20,000 vehicle trips per day. So those are your roads like Crowchild Trail, Glenmore Trail."
After that, McGeachy says crews will move on to priority two routes, which include bus routes running through communities.
The city said in a release that it's important for motorists to be ready for the driving conditions.
"We encourage Calgarians to plan ahead. Ensure your vehicles are winterized and cleared of snow prior to departure, bundle up, leave plenty of time for your commute and, if travelling on the roads, drive carefully and leave plenty of space between your vehicle and the vehicle in front of you," the city said.
Environment Canada says there's a 30 per cent chance of more flurries on Christmas Day with temperatures steady around –24 C, meaning there is a risk of frostbite.