09/09/2014 10:28 EDT | Updated 11/09/2014 05:59 EST

Calgary Snow Leaves City Blanketed In White

CALGARY - The ground is slushy white in Calgary and southern Alberta but it's going to get whiter as the region shakes off one late-summer snowstorm and braces for another that could be even bigger.

Calgary alone has already been hit by several centimetres of snow since Monday that caught drivers off guard and led to power outages in many neighbourhoods because of downed trees.

Environment Canada has now issued a new snowfall warning because of another system rolling in from British Columbia that could bring 10 to 15 centimetres, and even more in higher elevations.

The warning entails several communities west and south of the city as well as Banff and Waterton Lakes national parks and Kananaskis Country.

Environment Canada says road conditions can change quickly and suggests there could be an impact on rush hour traffic in the Calgary area Wednesday morning.

The snow is expected to taper off by the afternoon, with a return to seasonal temperatures by the weekend.