Wildfires in the Prairies having air quality impact on several provinces
- On Friday evening, evacuation orders were expanded by local authorities in the Grande Prairie area of Alberta due to the uncontrolled Sousa Creek wildfire near Chateh.
- This fire, spanning nearly 39,600 hectares in the High Level Forest Area, caused poor air quality and prompted earlier evacuations by the Dene Tha' First Nation on May 29.
- On Saturday morning, Edmonton launched its extreme weather protocol due to poor air quality, while air quality alerts were also issued for Red Deer, where conditions may deteriorate over the weekend.
- Environment Canada reported air quality indexes exceeding 100 micrograms per cubic metre across parts of Alberta and other provinces, urging vulnerable groups to limit outdoor activities.
- Wildfire smoke led to widespread unhealthy air conditions and limited sightlines across much of the Prairies and Ontario, with improvement anticipated by Monday as a low-pressure system moves through the region.
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Pus of 200 megafires are active in Canada, mainly in the centre and west, and half of them are considered out of control. Visualize the extent of these forest fires relative to your city.

Smoke from British Columbia fires impacts western Montana air quality
MONTANA - Smoke from fires in northern British Columbia spread into western Montana Sunday morning, impacting areas including Missoula and Butte. The US National Weather Service in Missoula reported that weak easterly winds overnight carried the smoke into the region.
Air quality had improved in most regions of Quebec on Sunday, with only a few areas remaining under Environment Canada's special bulletin. The poor air quality caused by smoke from forest fires in Prairs, however, persists in some locations in several provinces.
Between historic heat, extreme drought and violent winds, Canada faces an explosive cocktail, fuelling huge fires. More than 30,000 people have had to be evacuated to escape the flames. Millions of hectares of forests have already gone smoke from western Canada to the edge of Ontario. Despite a few drops of rain this weekend, the situation remains critical.
Wildfires in the Prairies having impact on air quality in several provinces
Poor air quality fuelled by wildfires burning across the Prairies left a large swath of the country enveloped in a haze again on Saturday, but Environment Canada said the situation is expected to improve over the weekend.
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