Heat warnings, air-quality alerts abound for long weekend as destructive wildfire season continues

Harsh temperatures and heavy smoke have triggered heat warnings and air-quality alerts for large swaths of the country this weekend, as hundreds of wildfires remain uncontained in Western and Central Canada.

Higher-risk conditions are anticipated in Ontario, Manitoba, Saskatchewan, Alberta and British Columbia, prompting special bulletins from Environment and Climate Change Canada for dozens of cities and towns. Meteorologists expect dryness, heat and lower precipitation to create ripe weather conditions for intense fire behaviour.