Abstract. Recent wildfire events in various parts of the world (Canada, the USA, Europe, Australia, etc.) highlight that climate evolution leads to atmospheric patterns that contribute to the development of more destructive fires, revealing complex fire-atmosphere interactions. The HIDALGO2 project addresses several environmental challenges from the perspective of numerical simulation and explores the possibilities and constraints of using European HPC resources. This paper presents some of the strategies followed in the wildfire pilot study for modeling fire spread and smoke emission and dispersion. The WRF-SFIRE model allows for the prediction of atmospheric behavior and its influence on wildfire spread by coupling the factors governing both phenomena. The design of the number of domains and their resolution, as well as the parameterization for downscaling and fire spread simulation, influence performance on EuroHPC installations. Additionally, each HPC installation has particularities for its use. These aspects condition and limit their use for real-time simulations to support operational decision-making. The pre-calculation of simulation ensembles can help overcome this obstacle and also allow for landscape sensitivity analysis. Finally, some strategies for the photorealistic visualization of the results are presented.