On 23 June 2017 a pyroCb formed in Yukon. GOES-15 detected the smoke plumes and pyroCb cloud, as well as the fires hot spot. The pyroCb cloud (~66º N, 137.5ºW) formed around 1:00 UTC . Starting at 0:00 UTC on 23 June, the animation below shows GOES-15 0.63 µm visible (left) and 3.9 µm shortwave IR (right) […]