OTTAWA—Nearly 1,000 wildfires were burning across Canada on Tuesday as persistent heat and dry conditions continued to fuel one of the country's most severe fire seasons, prompting fresh air quality warnings, evacuation efforts and an extensive firefighting response.
The Canadian Interagency Forest Fire Centre and the Canadian Wildland Fire Information System reported close to 1,000 active fires nationwide, with more than 200 classified as out of control. Fire activity remained concentrated in parts of Ontario, British Columbia, Manitoba, Saskatchewan and the Northwest Territories, while smoke spread across large areas of Canada and into parts of the United States.
Authorities said prolonged heat, low humidity and dry vegetation have intensified fire behaviour in several regions. Environment Canada maintained air quality advisories in multiple provinces as wildfire smoke reduced visibility and increased health risks, particularly for older adults, children and people with respiratory conditions.
Ontario remained among the hardest-hit provinces. Provincial officials said hundreds of fires were active, with several northern and northwestern communities under evacuation orders as firefighters, aircraft and emergency crews worked to contain advancing blazes. Premier Doug Ford said the province continued to coordinate with federal authorities and Indigenous leaders to support affected communities.
The federal government has said it is working with provinces, territories and Indigenous communities to deploy personnel and equipment where needed. Earlier this month, Public Safety Canada warned that above-average temperatures and continued dry conditions were expected across much of the country through the summer, increasing wildfire danger in several regions.
Prime Minister Mark Carney described the current season as one of the most intense in recent Canadian history, citing prolonged heat waves and exceptionally dry conditions. Officials have urged residents in affected areas to monitor local emergency alerts and follow evacuation instructions where issued.
Wildfire smoke also continued to affect parts of the U.S. Midwest and Northeast, where some jurisdictions reported unhealthy air quality levels. The cross-border impacts have renewed calls for continued cooperation on wildfire response and preparedness as both countries face increasingly severe fire seasons.
Canadian authorities said firefighting operations and damage assessments were continuing, while weather forecasts indicated that hot, dry conditions could sustain elevated wildfire risk in the coming days.
