Wildfire near Unorganized Thunder Bay District (Jul 13 #2)

Active · 20,234 ha (49,999 acres) · started 2026-07-13 · updated 2026-07-17

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

Imagery: Sentinel-2 (Copernicus). Drag to compare smoke vs. infrared.

Heat detections: NASA FIRMS (last 48h).

Expanding at a rate of approximately 5,059 hectares per day, the wildfire near Unorganized Thunder Bay District, Ontario, has surged to 20,234 hectares in just four days since it ignited on July 13. Satellite data from NASA FIRMS underscores the rapid spread of the blaze, with 165 heat detections recorded in the last 48 hours.

The fire remains active as it continues to consume landscape within the district. Emergency monitoring continues as the incident maintains its significant growth trajectory across the region.