On 26 June there were a reported two pyroCb in Alberta just west of Lake Athabaska. The first was at 58.7 N 113 W formed around 19:15 UTC. The second was at 59.3 N 113.7 W formed around 21:15 UTC. GOES-15 detected the smoke plumes and pyroCb clouds, as well as the fire hot spot. Starting at 19:30 UTC on 26 June, the animation below shows visible (.63 μm) on the left and shortwave IR (3.9 μm) on the right (click image to play animation). In the shortwave IR images the red pixels indicate very hot IR brightness temperatures exhibited by the fire source region.
GOES-15 0.63 μm visible (left) and 3.9 μm shortwave IR (right) images (click to play animation)
GOES-15 0.63 μm visible (left) and 3.9 μm shortwave IR (right) images (click to play animation)
GOES-15 10.7 μm IR images (click to play animation)