Wildfire near Unorganized Thunder Bay District (Jul 12)

Active · 350,922 ha (867,146 acres) · started 2026-07-12 · updated 2026-07-15

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).

Spanning an expansive 350,922 hectares (867,146 acres), the wildfire currently active in the Unorganized Thunder Bay District, ON, has demonstrated a rapid trajectory since its ignition on July 12, 2026. Over the past three days, the blaze has maintained an aggressive average daily growth of approximately 116,974 hectares.

Satellite monitoring underscores the intensity of the situation, with NASA FIRMS recording 5,027 heat detections in the immediate vicinity over the last 48 hours, confirming significant ongoing fire activity within the region.