continues to blanket western Canada, with Alberta remaining under a special air quality advisory for a third day. The Air Quality Health Index in Calgary was listed at 10+ — or very high risk, the highest possible rating — early Saturday morning. It had dropped slightly to a 10, or high risk, by 9 a.m. With such poor air quality, the federal weather authority is warning those most at risk, including children, seniors and people with cardiovascular or respiratory illness. is also included in the special air quality advisories.

Source: CBC News August 18, 2018 17:15 UTC