The axiom that a fire creates its own weather is supported by fireground observations and idealised numerical simulations. We present new evidence, showing how a fire can change the numerical weather prediction of a “real” atmosphere, using the coupled fire-atmosphere model WRF-Sfire. Our simulations show phenomena resulting from feedback processes including long-lived fire-induced vortices and interactions between colliding sea breeze fronts and the fire itself. The fire-atmosphere interactions alter fire spread and change the timing of sea breeze front passage across the fire. These revealing results clearly show that feedback between the fire and atmosphere can play an important role in shaping both fire behaviour and micro-scale meteorology. Ergo, we affirm that comprehensive risk assessment in an environment where fire and meteorology co-exist should consider the possibility of dynamical feedback processes occurring.