How Firestorms Form

The video explains the formation of thunderstorms, which require cold air above and hot, moist air below. These storms are short-lived as rain and wind block further hot air from rising. Firestorms, however, use wildfires as a heat source, producing fire clouds that can last much longer. The intense heat of a firestorm evaporates rain, fueling the storm further. Firestorms can spread over large areas, as seen in Australia's Black Saturday Bush fires, which spread over 400 fires across southern Australia.

What is the key ingredient that causes a firestorm to eventually end?

Describe the impact of air currents on firestorms as mentioned in the text.