
Himawari-8 “Red” Visible (0.64 µm, top), Shortwave Infrared (3.9 µm, middle) and “Clean” Infrared Window (10.4 µm, bottom) [click to play animation | MP4]
A faster animation revealed the rapid northeastward run of the large pyroCb-producing fire on Shortwave Infrared imagery.
![VIIRS True Color RGB and Infrared Window (11.45 µm) images from NOAA-20 and Suomi NPP [click to enlarge]](https://cimss.ssec.wisc.edu/goes/blog/wp-content/uploads/2019/04/190430_noaa20_suomiNPP_viirs_truecolor_infraredWindow_Russia_pyroCb_anim.gif)
VIIRS True Color RGB and Infrared Window (11.45 µm) images from NOAA-20 and Suomi NPP [click to enlarge]
In a sequence of three VIIRS True Color Red-Green-Blue (RGB) and Infrared Window (11.45 µm) images from NOAA-20 and Suomi NPP as viewed using RealEarth (above), the coldest cloud-top infrared brightness temperature of the pyroCb was -59ºC — which closely corresponded to the tropopause temperature on 00 UTC rawinsonde data from Habarovsk (below), located just southwest of the fire region.
Here’s the aerosol index from N20 OMPS pic.twitter.com/x3T12mi5ml
— Colin Seftor (@colin_seftor) April 30, 2019