Wildfire near Cat Lake (May 30)
True color
Fire (SWIR)
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 for 73 days since its start on May 30, a wildfire spanning 17,248 hectares (42,621 acres) remains active near Cat Lake, Ontario. The fire has expanded at an approximate average daily growth rate of 236 hectares per day within a region where the typical fire season runs from May to September.
This incident unfolds during a broader national fire season that has seen 2,286,112 hectares burned so far in 2026, a figure that remains 46 percent below the two-decade average for the country.
In context
This wildfire has been burning in Ontario for 89 days. So far it has affected roughly 17,248 ha (42,621 acres) — about 172 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 2,504,979 hectares have burned so far in 2026 — 41% below the two-decade average. Data from Copernicus GWIS.
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