On 30 June a pyroCb formed in Russia. HIMAWARI-8 detected the smoke plume and pyroCb cloud, as well as the fire hot spot. The pyroCb (~60 N 99E) occurred around 9:40 UTC . Starting at 9:00 UTC on 30 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 black pixels indicate very hot IR brightness temperatures exhibited by the fire source region.
HIMAWARI-8 0.63 µm visible channel (left) and 3.9 µm shortwave IR channel images (right) (click to play animation)
In addition, using HIMWARI-8 10.4 μm IR channel the cloud-top IR brightness temperature could be found. The animation below, starting at 10:00 UTC on 30 June, shows the brightness temperature for the pyroCb was -54ºC around 11:40 UTC (orange color enhancement).
HIMAWARI-8 10.4 µm IR channel images (click to play animation)