Snow, frigid temps in Calgary today; improving for the weekend

Following yesterday's gusts in the high 80 km/h range, Tuesday brings a much calmer approach. Sustained wind will reach 20 km/h, and falter there. This week is a drawn-out version of the events that took place repeatedly in January; we're approaching a high-pressure air mass. The differences today are as follows: highlighted in green below, is the supplementary burst of arctic air; and in yellow, the position of the jet stream is well away from us. So, cold air sags through and has a bit of stay