LA Fire – Pyrocumulus Cloud
Russ Clark of Arizona, USA was sent this video by his daughter who lives in the LA Basin.
The footage was shot by Dan Black from his vantage point at Tarzana, California.
Gavin Pretor- Pinney, founder of the Cloud Appreciation Society advises us that it shows a pyrocumulus cloud — a sort of cloud that can form over forest fires, due to all the heat and moisture that they throw up into the atmosphere.
The full video can be seen here