What is a "spot fire"?

A "spot fire" refers to a fire that is ignited outside the main perimeter of an existing fire area, typically caused by firebrands that are carried by the wind. When larger fires generate high heat and turbulent winds, they can send embers or burning materials several hundred yards away from the main fire. These embers can land in combustible materials, resulting in new ignitions outside of the controlled fire perimeter, which can pose significant challenges for firefighting efforts.

Recognizing the nature of a spot fire is important, as it can lead to rapidly spreading fire if not addressed promptly. Spot fires can complicate containment strategies but are distinct from slow-burning areas near the fire's edge or from areas within the main fire perimeter. Understanding the behavior of spot fires helps firefighters manage resources effectively and mitigate risks associated with unexpected fire spread.