The Marshall Fire was simulated on Derecho HPC \cite{derecho_NCC} using WPS v4.5, WRF v4.5.1, and a developmental version of the firebrand spotting parameterization. The simulations were configured with two nested domains (parent and child, Figure \ref{629868}), with one-way feedback between domains, at horizontal grid intervals of 1000 and 111m, using a mesoscale to microscale configuration (e.g., \citealt{haupt2019bridging}) in which the inner nest runs in LES mode. We used a fixed 3-s time step, 45 vertical levels, fire grid refinement of 4, and boundary conditions from the High-Resolution Rapid Refresh (HRRR) model \cite{Dowell_2022,blaylock2019high} at 3-hourly intervals. The physics processes were modeled with the following parameterizations: WRF Single-Moment 6-class scheme as the microphysics \cite{Hong2004WSM6}, RRTMG \cite{Iacono2008RRTMG} and Dudhia scheme \cite{Dudhia1989} for long and shortwave radiation, Yonsei University scheme \cite{Hong2006YSU} for Planetary Boundary Layer (in parent domain only), revised MM5 for surface layer \cite{Jim_nez_2012}, and Noah Land Surface Model \cite{Ek2003}.