Heat warnings issued for Calgary, much of southern Alberta

A heat warning has been issued for Calgary and a large portion of southern Alberta ahead of the hot weather expected this weekend. Environment and Climate Change Canada issues heat warnings when high temperature are expected to pose an elevated risk of heat illnesses like heatstroke or heat exhaustion. The federal agency says temperatures could reach 29 C or warmer in Calgary, combined with overnight lows near 14 C. "This will be a prolonged heat event, lasting into early next week," said the we