The Collaborative Model for Multiscale Atmospheric Simulation (COMMAS) was used to produce the simulations. Radial velocity and reflectivity data from a single mobile doppler radar were assimilated into the the COMMAS model using two-moment microphysics, including seven hydrometeor categories, and parameterizations for electrification and lightning with a horizontally homogeneous base state. The simulated precipitation and wind fields were similar to those of the observed storm. Simulated lightning flash rates were very large, as was observed, and the distribution of charge in the main body of the storm revealed in the simulation details the lightning dependence on storm kinematics that could not be directly observed. The simulation produced the observed lightning holes and the high-altitude lightning seen in the observations. However, the simulation failed to produce the observed lightning initiations (or even lightning channels) in the distant downstream anvil; instead, the simulated lightning was confined to the main body of the storm.