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 […]