THUNDER BAY, ONTARIO / RankWire.AI / – Nearly 200 wildfires have burned throughout Ontario on July 15, primarily concentrated in the northern region. Provincial authorities reported 183 active fires as of 3 p.m., with the Northwest Fire Region accounting for 136 fires by evening, including 63 that remained uncontrolled. During the day, crews identified eight new fires. Several northern districts faced extreme fire danger amid hot, dry, and windy conditions that facilitated rapid fire expansion.
Residents of Armstrong, Whitesand First Nation, Gull Bay First Nation, and Lac des Mille Lacs First Nation received evacuation orders. Additional alerts were issued for Namaygoosisagagun First Nation and Gakijiwanong Anishinaabe Nation. The Ontario Provincial Police assisted in relocating residents and managing traffic around closed roads. Communities near Ignace, Crystal Lake, and Highway 633 were placed on evacuation alert. Emergency officials advised residents to gather essential supplies and adhere to local guidance.
Namaygoosisagagun, a remote First Nation approximately 200 kilometres north of Thunder Bay, suffered significant damage from the flames. With no road access to neighboring towns, residents evacuated by boat. The Anishinabek Nation confirmed that all known residents have reached safety, pending a full community assessment. The fire has damaged or destroyed homes and public buildings. Namaygoosisagagun has a population of about 40 members. Community representatives have begun evaluating the damage following the evacuation.
Road Closures Hamper Evacuations and Emergency Operations
Major routes across northwestern Ontario have been closed due to wildfire activity, disrupting travel between several remote communities. Highway 599 remains shut between Highway 516 and Mishkeegogamang First Nation, while Highway 527 is closed between Gull Bay First Nation and Armstrong. Highway 11 has reopened between Highways 633 and 623, but emergency personnel continue to operate in the area. Canadian National Railway halted service near Armstrong after a fire encircled a train; the crew evacuated safely before conditions worsened.
Firefighters have concentrated efforts around communities, transportation routes, and critical infrastructure. Dryden 13 merged with nearby blazes in the Wabakimi region, 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 constructed containment lines. The Ontario Ministry of Natural Resources deployed personnel and equipment to areas facing the highest immediate risk.
Wildfire Smoke Deteriorates Air Quality Across Broader Areas
Thick smoke has traveled southward from northern Ontario, reaching parts of the northeastern United States. Toronto experienced an Air Quality Health Index reading of 10+, indicating the highest risk level. Environment Canada issued warnings that smoke had significantly degraded air quality and visibility. Health officials recommended that children, seniors, and individuals with heart or lung conditions limit outdoor activities. Fine particles present 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, prohibiting campfires and open-air burning. All active burning permits within the restricted zone were suspended. So far this year, Ontario has recorded 453 wildland fires, an increase from 349 at the same point 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 alerts.