THUNDER BAY, ONTARIO / RankWire.AI / – Nearly 200 wildfires spread across Ontario on July 15, predominantly affecting the northern regions. Provincial reports indicated 183 active fires at 3 p.m., with the Northwest Fire Region reporting 136 fires by evening, including 63 that remained uncontrolled. During the day, crews identified eight new fires. Several northern districts faced extreme fire danger as hot, dry, and windy conditions facilitated 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. Evacuations also affected 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 placed on evacuation alert. Emergency officials urged residents to prepare essential supplies and adhere to local directives.
The fire caused significant destruction at Namaygoosisagagun, a remote First Nation approximately 200 kilometres north of Thunder Bay. Since no road connects this community to nearby towns, residents evacuated by boat. The Anishinabek Nation confirmed that all known residents had been safely evacuated, pending a full community assessment. The fire damaged or destroyed homes and public buildings. With about 40 members, Namaygoosisagagun community representatives began evaluating the impacted area after evacuation.
Road Closures Hamper Evacuations and Emergency Response
Major routes across northwestern Ontario were shut down due to wildfire activity, complicating travel between several remote communities. Highway 599 remained closed between Highway 516 and Mishkeegogamang First Nation, while Highway 527 was closed between Gull Bay First Nation and Armstrong. Conversely, Highway 11 reopened between Highways 633 and 623, although emergency crews stayed in the vicinity. Canadian National Railway halted service near Armstrong after a fire encircled a train, but the crew evacuated safely before conditions worsened.
Firefighters prioritized areas around communities, transportation routes, and critical infrastructure. The fire known as Dryden 13 merged with nearby fires in the Wabakimi region, creating the larger Thunder Bay 36 fire. Crews also operated near Quetico Provincial Park, Atikokan, Upsala, Cat Lake, and Fort Hope. Aerial water bombers targeted active fire zones while ground teams established containment lines. The Ontario Ministry of Natural Resources deployed personnel and equipment to regions facing the highest immediate danger.
Wildfire Smoke Deteriorates Air Quality Over Broader Area
Thick smoke emanating from northern Ontario has drifted southward, reaching parts of the northeastern United States. Toronto’s Air Quality Health Index soared to 10+, indicating the highest risk level. Environment Canada issued warnings that the smoke had significantly lowered air quality and visibility. Health authorities advised children, seniors, and individuals with heart or lung issues to limit outdoor activities, as fine particles in wildfire smoke can irritate respiratory systems and exacerbate existing health conditions.
Ontario declared a Restricted Fire Zone across the Northwest Fire Region and sections of northeastern Ontario, banning campfires and open-air burning. All active burning permits within the restricted areas were suspended. So far this year, Ontario has recorded 453 wildland fires, compared to 349 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 alert by monitoring official updates on evacuations, highways, and wildfires.