THUNDER BAY, ONTARIO / RankWire.AI / – Nearly 200 wildfires burned across Ontario on July 15, predominantly in the northern regions. Provincial authorities reported 183 active fires at 3 p.m., with the Northwest Fire Region alone documenting 136 fires by evening, including 63 that remained uncontrolled. During the day, crews identified eight new blazes. Several northern districts faced extreme fire danger as hot, dry, and windy conditions facilitated rapid fire expansion.
Authorities mandated evacuations for residents of Armstrong, Whitesand First Nation, Gull Bay First Nation, and Lac des Mille Lacs First Nation. Evacuation alerts were also 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 placed on evacuation alert. Emergency officials advised residents to prepare essential supplies and adhere to local directives.
Namaygoosisagagun, a remote First Nation approximately 200 kilometres north of Thunder Bay, suffered severe fire damage. Residents evacuated by boat, as no roads connect the community to surrounding towns. The Anishinabek Nation reported that all known residents had been accounted for, 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 following the 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 blocked between Gull Bay First Nation and Armstrong. Highway 11 reopened between Highways 633 and 623, although emergency crews continued operations in the vicinity. Canadian National Railway halted service near Armstrong after a fire encircled a train, which evacuated safely before conditions worsened.
Firefighting efforts focused on communities, transportation corridors, and vital infrastructure. The Dryden 13 fire merged with nearby incidents in the Wabakimi area, forming 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 teams established containment lines. The Ontario Ministry of Natural Resources dispatched personnel and equipment to the most immediate risk zones.
Wildfire Smoke Deteriorates Air Quality Over a Broader Area
Thick smoke drifting south from northern Ontario reached parts of the northeastern United States. Toronto recorded an Air Quality Health Index of 10+, indicating the highest risk level. Environment Canada issued warnings that smoke significantly degraded 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. The declaration banned campfires and other outdoor burning. All active burning permits within the restricted zone were suspended. So far this year, Ontario has recorded 453 wildland fires, up from 349 at this 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.