This PhD project aims to understand the interaction between wildfire propagation and the intensification cycle on the diurnal dynamics of the atmosphere. Our motivation is driven by the inaccuracy of wildfire models to predict short- and middle-range fire spread. These uncertainties are characterized by the interaction of multiple processes and scales. In this PhD, we focus on the coupling between surface conditions influenced by fire, the fire plume, and the subsequent formation of pyrocumulus. The latter, under certain conditions, might govern the fire propagation at the surface with unpredictable consequences. A deeper understanding of this surface-pyrocumulus coupling will help to improve the advancement of the model representations of the coupling fire-weather in numerical weather prediction models. The outcome for society will be to predict wildfire spread better, saving damage on ecosystems, live, and property.