Started on May 30, 2026.
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Fire view (right): infrared (SWIR), sees through smoke and brings out the heat.
🟢 green = vegetation
🟤 brown = already burned
🟠 orange = fire right now
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Green: vegetationBrown: already burnedOrange: fire right nowSentinel-2 · Copernicus
Red dots: heat detected by satellite in the last 48h. NASA FIRMS
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 burned in Ontario for 90 days. In total it burned about 17,248 ha (42,621 acres) — around 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 2,608,022 hectares have burned so far in 2026 — 38% below the two-decade average. Data from Copernicus GWIS.
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