On 24 August there were two pyroCbs near Lake Baikal in Russia. The first pyroCb formed at 52.6 N 109.5 E around 7:00 UTC, and the second pyroCb formed at 53.2 N 109.7 E around 9:00 UTC. Himawari-8 detected the smoke plume and clouds around the fires, as well as the fire hot spots. Starting at 06:00 UTC on August 24, the animation below shows visible (.64 μm) on the left and shortwave IR (3.9 μm) on the right (click image to play animation). In the shortwave IR images the darker black to red pixels indicate very hot IR brightness temperatures exhibited by the fire source region.
Himawari-8 0.64 μm visible (left) and 3.9 μm shortwave IR (right) images (click to play animation)
The third pyroCb formed around 52.8 N 108.5 E. Himawari-8 detected the smoke plume and clouds around the fires, as well as the fire hot spots. Starting at 08:00 UTC on August 24, the animation below shows visible (.64 μm) on the left and shortwave IR (3.9 μm) on the right (click image to play animation). In the shortwave IR images the darker black to red pixels indicate very hot IR brightness temperatures exhibited by the fire source region.
Himawari-8 0.64 μm visible (left) and 3.9 μm shortwave IR (right) images (click to play animation)
Himawari-8 10.4 μm IR channel imagery the minimum cloud-top IR brightness temperatures could be found. The animation below, starting at 06:00 UTC on 24 August, shows that the first pyroCb reached around -52.8 ºC (yellow color enhancement) at 07:30 UTC, the second pyroCb reaching -48ºC (lime green color enhancement) at 11:00 UTC, and the third pyroCb reach -48ºC (lime green color enhancement) at 11:00 UTC.
Himawari-8 10.4 μm IR images (click to play animation)
The fourth and fifth pyroCb happened later in the day so visible imagery wasn’t available. The fourth pyroCb formed at 53.4 N 109.8 E and the fifth forming at 54.2 N 109.6 E. Himawari-8 detected the smoke plume and clouds around the fires, as well as the fire hot spots. Starting at 11:00 UTC on August 24, the animation below shows shortwave IR (3.9 μm, click image to play animation). In the shortwave IR images the darker black to red pixels indicate very hot IR brightness temperatures exhibited by the fire source region.
Himawari-8 0.64 μm visible (left) and 3.9 μm shortwave IR (right) images (click to play animation)
Also, Himawari-8 10.4 μm IR channel imagery the minimum cloud-top IR brightness temperatures could be found. The animation below, starting at 11:00 UTC on 24 August, shows that the fourth pyroCb reached around -52.1 ºC (yellow color enhancement) at 13:00 UTC, and the fifth pyroCb reaching -48.7ºC (lime green color enhancement) at 14:30 UTC.
Himawari-8 10.4 μm IR images (click to play animation)