Firebrand spotting can also be an important mechanism to increase the fire ROS, particularly in wind-driven fires, as noted by \citealt{wadhwani2022review} and references therein. The snapshots in Panel (B) show that spotting played a fundamental role in the rapid spread of the fire: the fire front in the t5n2 Fire-Spots experiment arrives at Hwy 36 within the first simulated hour (at 12 PM MST), whereas in the CTRL experiment, the fire front arrives 9 hours later (at 9 PM MST).