With wind changes, a wildland fire can develop a long, narrow extension that projects out from the head of the fire. What is this extension called?

The term for a long, narrow extension that projects out from the head of a wildland fire is known as a "finger." This feature occurs when wind changes cause the fire to spread in a directed pattern, creating a section that reaches out from the main body of the fire. Fingers can be particularly dangerous as they can extend rapidly and unpredictably, posing a threat to fire suppression efforts and making it more challenging to control the fire's spread. Understanding the behavior of fire, including the formation of fingers, is crucial for developing effective strategies for containment and ensuring safety during wildland firefighting operations.