This paper describes a simple physical model of the phenomenon of fire jumps. The model behaviour is developed using DEVS Formalism and simulated in Discrete Event fashion. The aim of this work is to be able to simulate this phenomenon within the ForeFire DEVS fire spread simulator and to obtain acceptable results in less than a minute for a large wildfire. The proposed sub-model is validated using a set of experimental and numerical studies. Results show that the overall fire spread simulation performs well after the addition of the fire jumps sub-model and enhance the quality of the outputs in order to help fire-fighters