A module has been developed at the National Center for Atmospheric Research that incorporates fire behavior algorithms within the Weather Research Forecast (WRF) meteorological modeling system. This system is used for simulation of coupled fire-atmosphere dynamics where fire effects are incorporated via sensible and latent energy flux terms within the land-surface schemes used within WRF. This allows explicit treatment of the effects of fire on atmospheric dynamics and feedback to fire behavior due to these perturbations. In this paper, the structure and scope of WRF-Fire are described and application to a simple case study are presented.