What is spotting distance in wildland firefighting?

• A. Distance embers can travel to start new fires
• B. Distance water can travel to extinguish embers
• C. Distance a firefighter must stay from flames
• D. Distance smoke travels to reduce visibility

Answer: (A)

Spotting distance is the distance embers, or firebrands, can travel from the main fire to start new ignitions ahead of the flames. This concept matters because embers carried by wind and convection can create spot fires well beyond the main fire front, potentially bypassing control lines and threatening crews and assets. The distance new fires can start depends on ember size, the type and condition of available fuels, wind speed and gusts, and atmospheric turbulence—larger embers and stronger winds push ignition farther. Understanding spotting distance helps crews plan defensible spaces, design lines with appropriate fuel breaks, and monitor and patrol for new ignition points. It’s not about how far water can travel, how close a firefighter must stay to flames, or how far smoke travels.