What term describes a burning area that exists outside the main fire perimeter?

The term "spot fire" accurately describes a burning area that exists outside the main fire perimeter. Spot fires occur when embers or sparks are carried by the wind to a location away from the main fire, igniting combustible materials in that new area. Spot fires can create additional challenges for firefighting efforts because they can spread quickly and unpredictably, potentially intensifying the overall fire behavior.

Understanding spot fires is critical for wildland firefighters, as they need to be vigilant for these outbreaks, particularly during windy conditions or when firefighting resources are stretched thin. By identifying and addressing spot fires promptly, firefighters can help contain the overall fire situation and reduce the risk of larger flare-ups that could threaten safety and containment efforts.