Medicine Hat, to be more precise.
The record snowfall on September 28 was 3.8 cm recorded in 1925.
Environment Canada forecast 5 to 10 cm during the day on Sunday with another 10 to 15 cm overnight.
Areas around Pincher Creek and Crowsnest Pass were forecast to see up to 100 cm (more than 3 ft) of snow in some areas with 40 to 60 cm likely across southwestern Alberta.
Mounties said that visibility on the Trans-Canada Highway was down to 100 metres with multiple incidents of collisions and cars which have left the road.
Drivers were backed up on the highway for several hours.
Thanks to Clay Olson for this link