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In Ontario, the Ministry of Natural Resources and Forestry’s interactive map shows active fires concentrated largely north of Lake Superior and near the Manitoba border. The Kenora, Red Lake, and Thunder Bay districts are particularly affected, with several blazes classified as “not under control.”

— The World News

The most concentrated wildfire activity continues to burn in central and northern Quebec, where massive complexes of fires—some burning since early June—remain out of control. Maps from the Société de protection des forêts contre le feu (SOPFEU) indicate that dozens of active fires are generating heavy smoke plumes drifting southward toward major population centers, including Montreal and Quebec City.

“These are deep-burning organic soils in many areas. Rain slows them down, but it doesn’t put them out,” explained fire behavior analyst Marc Tremblay. “What we’re seeing on the maps—those clusters of red dots—represent fires that can smolder underground for weeks and then reignite with wind.”

Evacuation orders remain in place for several remote Indigenous communities, while smoke from the Ontario fires has intermittently degraded air quality as far south as Toronto and Ottawa.