Please note that delays may be possible throughout Calgary, AB as a result of a significant weather change this week, bringing cooler temperatures and the potential for 15 to 25 cm of snow. This expected front will also bring heavy snow, starting this evening in west-central Alberta and spreading southeast on Wednesday and Thursday. Over the next 48 hours, parts of southern Alberta could see snowfall totals of 15 to 25 cm, with even higher amounts possible over the eastern slopes of the Rocky Mountains. Snowfall warnings are likely. We will continue to monitor the situation closely, and provide any service updates as they become available.