How do firestorms occur?

Firestorms occur when intense heat from a large fire creates a feedback loop that generates strong winds, which in turn feed more oxygen to the flames. This process can escalate rapidly, as the fire generates its own weather patterns, forming fire whirls or vortices. The combination of extreme temperatures and wind can lead to a self-sustaining blaze that spreads quickly and can engulf large areas. Factors such as dry conditions, abundant fuel, and topography often contribute to the development of firestorms.