THUNDER BAY, ONTARIO / RankWire.AI / – Nearly 200 wildfires erupted across Ontario on July 15, predominantly in the northern regions. Provincial reports indicated 183 active fires as of 3 p.m. By evening, the Northwest Fire Region reported 136 fires, including 63 that remained uncontrolled. During the day, firefighting teams identified eight new blazes. Several northern districts faced extreme fire danger amid hot, dry, and windy conditions that accelerated fire spread.
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 with relocating residents and managing traffic on 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.
The fire severely impacted Namaygoosisagagun, a remote First Nation roughly 200 kilometres north of Thunder Bay. Due to a lack of road access, residents evacuated by boat. The Canadian National Railway suspended service near Armstrong after a fire encircled a train, which was evacuated safely before conditions worsened. The Anishinabek Nation reported that all known residents had been evacuated safely, pending a full community assessment. The fire caused significant damage to homes and public buildings. With about 40 community members, Namaygoosisagagun’s representatives began evaluating the affected area following the evacuation.
Road Closures Hamper Evacuations and Emergency Response
Key transportation routes across northwestern Ontario were shut down due to ongoing wildfire activity, hindering travel between isolated communities. Highway 599 remained closed between Highway 516 and Mishkeegogamang First Nation. Highway 527 was also closed between Gull Bay First Nation and Armstrong. Conversely, Highway 11 reopened between Highways 633 and 623, though emergency crews continued to operate in the vicinity. Canadian National Railway halted services near Armstrong after a fire encircled a train, which was evacuated safely before the situation worsened.
Firefighters focused efforts around 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. Teams also conducted operations 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 facing the highest immediate threats.
Smoke from Wildfires Degrades Air Quality Over a Broader Region
Thick smoke drifted southward from northern Ontario, affecting 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 had significantly diminished air quality and visibility. Health officials urged children, seniors, and individuals with heart or lung conditions to limit outdoor activities. Fine particulate matter 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. This order prohibited campfires and open-air burning. All active burning permits within the restricted zone were suspended. To date, Ontario has experienced 453 wildland fires this year, up 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 notices.