The winter storm warning continues for southern Alberta and police are asking people not to travel unless absolutely necessary.
The storm that pelted the city and surrounding area over the last few days has dumped up to 20 cm of snow in some parts and more is on the way.
City crews have cleared major routes but motorists are struggling to get through on side streets.
The city started applying an anti-icing agent and salt chips on major roads in the early morning hours and will switch to a sand/salt mixture as the temperature drops to provide extra traction.
The city says that drivers should anticipate delays, drive defensively, and slow down.
Highways in southern and central Alberta are also in poor condition.
Heavy winds, blowing snow, icy sections and reduced visibility is making highway travel between Lethbridge and Edmonton treacherous.
The QEII Highway was shut down in both directions north of Calgary for several hours on Saturday but has since reopened.
Environment Canada has issued a Winter Storm Warning and says the snow will taper off through the day on Saturday and temperatures may go as low as -25 with the wind chill.
The system is heading south and an additional 5 to 10 cm of snow is expected for southern regions of the province.
In Lethbridge, wind gusts of up to 60 km per hour caused heavy drifting in several areas, and made it extremely difficult for drivers.
Lethbridge Regional Police are also advising residents to avoid driving if at all possible.
Arrivals and departures at the Calgary International Airport have been disrupted and several flights are cancelled or delayed.
For up to date flight arrivals and departures visit the Calgary Airport Authority Website.
A snowstorm, in many areas the first of the season, has impacted much of the Northeastern United States and Atlantic Canada today and is expected to continue until early on Sunday morning. Cities closer to the coast first received rain this morning and early afternoon, but precipitation has changed over to snow as the low pressure system moves northeastward and gains strength.

Forecasters say the storm is related to the same system that brought record-breaking snowfall to the Houston, Texas region a few days ago. 

Most locations will pick up a few inches of snow when all is said and done, enough to cause widespread travel delays and traffic accidents throughout the area. Accordingly, the National Weather Service has issued several winter weather warnings stretching from the South through Maine. Environment Canada has issued a snowfall warning for Atlantic Canada and is expecting 15 to 30 centimeters of snow.

By midday Sunday, the storm will have pulled out of the region, leaving behind clearing skies. 

Meanwhile, a winter storm hit southern Alberta, Canada on Friday causing blizzard like conditions and dumping over 20 centimeters of snow.

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