Oregon wildfire forms 'fire clouds' that pose danger below

Smoke and heat from a massive wildfire in southeastern Oregon are creating giant "fire clouds" over the blaze—dangerous columns of smoke and ash that can reach up to 6 miles (10 kilometers) in the sky and are visible from more than 100 miles (160 kilometers) away.

source https://phys.org/news/2021-07-oregon-wildfire-clouds-pose-danger.html