Wildfire near Unorganized Thunder Bay District
True color
Fire (SWIR)
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True color (left): as the eye sees it.
Infrared / SWIR (right): sees through smoke.
🟢 green = vegetation
🟤 red/brown = burned
🟠 orange = active fire
Infrared / SWIR (right): sees through smoke.
🟢 green = vegetation
🟤 red/brown = burned
🟠 orange = active fire
Imagery: Sentinel-2 (Copernicus). Drag to compare smoke vs. infrared.
Heat detections: NASA FIRMS (last 48h).
After burning for 42 days, the wildfire near Unorganized Thunder Bay District, Ontario, has maintained an average daily growth of approximately 341 hectares. Despite this long-term progression, current satellite monitoring from NASA FIRMS has identified only one heat signature in the vicinity over the past 48 hours, suggesting a significant reduction in active combustion.
The blaze, which originated on May 31, 2026, has scorched a total of 14,333 hectares (35,418 acres). Fire officials have now officially classified the incident as contained.