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Wildfire near Casummit Lake (Jun 27)

Active · 8,683 ha (21,456 acres) · started 2026-06-27 · updated 2026-08-11

Wildfire near Casummit Lake (Jun 27) — Sentinel-2 true color Wildfire near Casummit Lake (Jun 27) — Sentinel-2 SWIR (fuego) True color Fire (SWIR)
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).

Burning near Casummit Lake, Ontario, an active wildfire has been active for 45 days since starting on June 27, 2026, maintaining an average daily growth of approximately 193 hectares per day. The fire has reached a total size of 8,683 hectares, which is equivalent to 21,456 acres.

This ongoing incident unfolds against the backdrop of Canada's broader regional fire season, which typically spans from May to September. Across the country, 2,286,112 hectares have burned so far in 2026, a figure that remains 46 percent below the two-decade average.

In context

This wildfire has been burning in Ontario for 62 days. So far it has affected roughly 8,683 ha (21,456 acres) — about 87 km².

In the Northern Hemisphere, wildfire activity usually peaks during the warm, dry months — roughly May through October.

The bigger picture in Canada

Across Canada, roughly 2,595,525 hectares have burned so far in 2026 — 39% below the two-decade average. Data from Copernicus GWIS.

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