On 25 May 2015 there were reported two  pyroCbs at 59.3 N 132.6 W. The first was around 23:00 UTC on 25 May. The second was around 1:00 UTC on 26 May 2015. According to Whitehorse and Fort Nelson soundings the later pyroCb reached 11 to 12 km. GOES 15 detects the pyroCbs at visible (.63 […]

There were two notable pyrocumulus clouds that developed on 22 May 2015 in western Canada: the first in Saskatchewan near the eastern border (56.23º N, 109.82º W), and the second in western Alberta (54.85º N, 110.38º W). The fire in Alberta produced a pyroCb, and covered an area of roughly 200 square kilometers with flames only […]