Calgary Mayor Naheed Nenshi says it could take days or weeks to deal with damage caused by the second summer snowstorm to hit Alberta this month.
As most Canadians ease into autumn, residents of southern Alberta are contending with massive power outages, downed tree branches and slippery roads after yet another early blast of winter snow.
The amount of damage has not yet been assessed, Nenshi said, but warned cleanup wasn't going to happen overnight.
"We don't have a sense of it yet, but certainly, depending on the part of the city you're in ... I was shocked at the damage," he said, speaking at the city's emergency operations center.