THUNDER BAY, ONTARIO / RankWire.AI / – Nearly 200 wildfires spread across Ontario on July 15, mostly concentrated in the northern regions. Provincial data indicated 183 active fires at 3 p.m. The Northwest Fire Region reported a total of 136 fires by evening, with 63 remaining 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 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 with resident relocations and managed traffic around closed roads. Communities near Ignace, Crystal Lake, and Highway 633 were also 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. Due to the lack of road access, residents evacuated by boat. The Anishinabek Nation reported that all known residents had been safely evacuated, pending a full community assessment. The blaze damaged or destroyed homes and public facilities. Namaygoosisagagun has roughly 40 residents. Community representatives commenced damage assessments following the evacuation.
Road Closures Hinder Evacuations and Emergency Response
Major highways 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. Highway 11 reopened between Highways 633 and 623, but emergency crews continued operations in the area. Canadian National Railway halted service near Armstrong after a fire encircled a train. The crew evacuated safely before conditions worsened.
Firefighting efforts focused on communities, transportation corridors, and critical infrastructure. The Dryden 13 fire merged with nearby blazes in the Wabakimi area, creating the larger Thunder Bay 36 fire. Crews also operated 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 most immediate threat.
Smoke from Wildfires Deteriorates Air Quality Regionally
Thick smoke drifted southward from northern Ontario, reaching parts of the northeastern United States. Toronto recorded an Air Quality Health Index reading of 10+, indicating the highest risk level. Environment Canada issued warnings that smoke had significantly lowered air quality and visibility. Health officials recommended children, seniors, and individuals with heart or lung conditions limit outdoor activities. Fine particles in wildfire smoke can irritate lungs and exacerbate existing health issues.
Ontario declared a Restricted Fire Zone across the Northwest Fire Region and sections of northeastern Ontario. The 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, up from 349 at the same time in 2025. The 10-year average for this period is 312. The Ontario Ministry of Natural Resources advised residents to stay informed through official evacuation, highway, and wildfire notices.