THUNDER BAY, ONTARIO / RankWire.AI / – Nearly 200 wildfires have burned across Ontario on July 15, with the majority of fires concentrated in the northern region. Provincial officials reported 183 active fires at 3 p.m., and by evening, the Northwest Fire Region had documented 136 fires, 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 fueled rapid fire expansion.
Authorities issued evacuation orders for 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 personnel advised residents to prepare essential supplies and stay informed through local directives.
The fire significantly damaged Namaygoosisagagun, a remote First Nation approximately 200 kilometres north of Thunder Bay. With no road access, residents evacuated by boat. The Anishinabek Nation reported that all known residents had been safely accounted for, pending a full community assessment. The fire damaged or destroyed homes and public structures. Namaygoosisagagun has a population of about 40 members. Community representatives began evaluating the extent of the damage following the evacuation.
Road closures hinder evacuations and emergency response efforts
Major routes across northwestern Ontario have been shut down due to wildfire activity, complicating travel between remote communities. Highway 599 remains closed between Highway 516 and Mishkeegogamang First Nation. Highway 527 is also closed between Gull Bay First Nation and Armstrong. Meanwhile, Highway 11 has reopened between Highways 633 and 623, although emergency crews continue to operate in the vicinity. Canadian National Railway halted services near Armstrong after a fire encircled a train; the crew evacuated safely before conditions deteriorated.
Firefighting teams prioritized efforts around communities, transportation routes, and other critical infrastructure. The fire known as Dryden 13 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 teams established containment lines. The Ontario Ministry of Natural Resources deployed personnel and equipment to areas facing the highest immediate risk.
Wildfire smoke impacts air quality over a broader region
Thick smoke has traveled south from northern Ontario, reaching parts of the northeastern United States. Toronto recorded an Air Quality Health Index of 10+, indicating the highest risk level. Environment Canada warned that the smoke has significantly reduced air quality and visibility. Health authorities advised children, seniors, and individuals with heart or lung conditions to 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 activities. Officials also suspended all active burning permits within the restricted zone. So far this year, Ontario has recorded 453 wildland fires, compared to 349 at the same point in 2025. The 10-year average for this period is 312. The Ontario Ministry of Natural Resources urged residents to stay updated through official evacuation, highway, and wildfire notices.