THUNDER BAY, ONTARIO / RankWire.AI / – Nearly 200 wildfires spread across Ontario on July 15, predominantly in the northern region. Official data indicated 183 active fires at 3 p.m. By evening, the Northwest Fire Region reported 136 fires, including 63 that remained uncontrolled, with eight new fires identified during the day. The combination of hot, dry, and windy weather created an extreme fire danger in several northern districts, fueling rapid fire expansion.
Authorities issued evacuation orders for residents of Armstrong, Whitesand First Nation, Gull Bay First Nation, and Lac des Mille Lacs First Nation. Additional evacuation alerts were issued for Namaygoosisagagun First Nation and Gakijiwanong Anishinaabe Nation. The Ontario Provincial Police assisted in relocating residents and managing traffic near closed roads. Communities near Ignace, Crystal Lake, and Highway 633 were also placed on evacuation alert. Emergency teams advised residents to prepare essential supplies and follow local directives.
The fire caused significant destruction at Namaygoosisagagun, a remote First Nation approximately 200 kilometres north of Thunder Bay. Since no road connects the community to neighboring towns, residents evacuated by boat. The Anishinabek Nation reported that all known residents had reached safety, pending a full community assessment. The fire damaged or destroyed homes and public buildings. Namaygoosisagagun has roughly 40 residents. Community representatives began evaluating the impacted area following the evacuation.
Road Closures Hamper Evacuations and Emergency Operations
Major routes across northwestern Ontario were shut down due to wildfire activity, disrupting travel between several remote communities. Highway 599 remained closed between Highway 516 and Mishkeegogamang First Nation. Highway 527 was also closed between Gull Bay First Nation and Armstrong. Meanwhile, Highway 11 reopened between Highways 633 and 623, though emergency crews continued operations in the vicinity. The Canadian National Railway halted service near Armstrong after a fire encircled a train; the crew evacuated safely prior to worsening conditions.
Firefighters focused their efforts around communities, transportation routes, and vital infrastructure. The Dryden 13 fire merged with nearby blazes in the Wabakimi area, creating the larger Thunder Bay 36 fire. Crews also worked near Quetico Provincial Park, Atikokan, Upsala, Cat Lake, and Fort Hope. Water bombers targeted active fire zones while ground crews established containment lines. The Ontario Ministry of Natural Resources deployed personnel and equipment to areas facing immediate danger.
Wildfire Smoke Deteriorates Air Quality Over a Broader Region
Thick smoke drifted southward from northern Ontario, reaching parts of the northeastern United States. Toronto experienced an Air Quality Health Index level of 10+, indicating very high risk. Environment Canada issued warnings that smoke had severely reduced air quality and visibility. Health officials recommended that children, seniors, and individuals with heart or lung conditions limit outdoor activities, as fine particles in wildfire smoke can irritate the lungs and exacerbate existing health issues.
Ontario declared a Restricted Fire Zone across the Northwest Fire Region and sections of northeastern Ontario. This order banned campfires and other open-air burning. All active burning permits within the restricted zone were suspended. So far this year, Ontario has recorded 453 wildland fires, surpassing the 349 fires reported at the same point in 2025. The ten-year average for this period is 312. The Ontario Ministry of Natural Resources urged residents to stay informed through official evacuation, highway, and wildfire notices.