Pyrocumulonimbus cloud produced by the Bootleg Fire in Oregon
![](https://cimss.ssec.wisc.edu/satellite-blog/wp-content/uploads/sites/5/2021/07/or_4p-20210715_004525.png)
1-minute Mesoscale Domain Sector GOES-17 (GOES-West) “Red” Visible (0.64 µm), Shortwave Infrared (3.9 µm), “Clean” Infrared Window (10.35 µm) and Fire Temperature RGB images (above) revealed that the Bootleg Fire in far southern Oregon produced a pyrocumulonimbus (pyroCb) cloud — denoted by cloud-top 10.35 µm infrared brightness temperatures of -40ºC and colder (darker blue pixels) — late in the day... Read More