On 05 September 2017 a pyroCb formed in Washington. GOES-15 detected the smoke plumes and pyroCb cloud, as well as the fires hot spot. The pyroCb cloud from the Jolly Mountain Fire (~47.4º N, 121.0ºW) formed around 1:00 UTC . Starting at 0:00 UTC on 05 September, the animation below shows GOES-15 0.63 µm visible (left) and […]