THUNDER BAY, ONTARIO / RankWire.AI / – Nearly 200 wildfires burned across Ontario on July 15, with the majority concentrated in the northern region. Provincial authorities reported 183 active fires at 3 p.m., with the Northwest Fire Region tallying 136 by nightfall, 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 contributed to rapid fire expansion.
Officials ordered residents to evacuate Armstrong, Whitesand First Nation, Gull Bay First Nation, and Lac des Mille Lacs First Nation. Evacuation directives also affected Namaygoosisagagun First Nation and Gakijiwanong Anishinaabe Nation. The Ontario Provincial Police assisted in relocating residents and managing traffic near road closures. Communities near Ignace, Crystal Lake, and Highway 633 were placed on evacuation alert. Emergency personnel 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. Residents had to evacuate by boat, as no road connects the community to nearby towns. The Anishinabek Nation reported that all known residents had been safely evacuated, pending a full community assessment. The wildfire destroyed or damaged homes and public buildings. With around 40 residents, community representatives began evaluating the affected areas post-evacuation.
Road Closures Hamper Evacuations and Emergency Operations
Major transportation routes across northwestern Ontario were shut down due to wildfire activity, complicating evacuations and access for emergency responders. Highway 599 remained closed between Highway 516 and Mishkeegogamang First Nation, while Highway 527 was shut between Gull Bay First Nation and Armstrong. Highway 11 reopened between Highways 633 and 623, but emergency crews continued to operate in the area. Canadian National Railway halted services near Armstrong after a fire encircled a train, prompting the crew to evacuate safely before conditions worsened.
Firefighting efforts focused on communities, transportation routes, and critical infrastructure. The Dryden 13 fire merged with nearby blazes in the Wabakimi region, forming 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 crews established containment lines. The Ontario Ministry of Natural Resources deployed personnel and equipment to areas at the highest immediate risk.
Wildfire Smoke Deteriorates Air Quality Over a Broader Area
Thick smoke from the northern Ontario wildfires 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 smoke had 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 portions of northeastern Ontario. The restriction prohibited campfires and other open-air burning activities. All active burning permits were suspended within the designated zone. This year, Ontario experienced 453 wildland fires, up from 349 at the same point in 2025, with the 10-year average at 312. The Ontario Ministry of Natural Resources urged residents to stay informed through official evacuation, highway, and wildfire notices.