Calgary's 5-day forecast has added optimism

One more. Just one more day, and you're in the clear. Residents in eastern and southeastern Alberta are waking up in frigid temperatures; a wide swathe of extreme cold warnings continues. These are handed out when there is the possibility of a -40 wind chill persisting for at least two hours. Looking at the 6 a.m. summary, only Beaverlodge has cracked a -40 C wind chill so far. Olds has come close, with a wind chill at -38 C. Calgary's high temperatures have hovered between -15 C and -17 C for t