On 29 June one pyroCb formed in the Northwest Territories. GOES-15 detected the smoke plume and pyroCb cloud, as well as the fire hot spot. The pyroCb (63.9 N 123.9W) occurred at 22:11 UTC . Starting at 21:00 UTC on 21 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 channel (left) and 3.9 µm shortwave IR channel images (right) (click to play animation)
In addition, using GOES-15 10.7 μm IR channel the cloud-top IR brightness temperature could be found. The animation below, starting at 21:30 UTC on 29 June, shows the brightness temperature for the pyroCb was -57.7ºC around 23:01 UTC (orange color enhancement).
GOES-15 10.7 µm IR channel images (click to play animation)