Fire and smoke models are numerical tools for simulating fire behavior, smoke dynamics, and air quality impacts of wildland fires. Fire models are developed based on the fundamental chemistry and physics of combustion and fire spread or statistical analysis of experimental data (Sullivan 2009). They provide information on fire spread and fuel consumption for safe and efficient prescribed (Rx) burning and wildfire suppression. They also provide inputs of heat release and emissions for smoke modeling. A large number of fire models such as BehavePlus, FIRETEC, NEXUS, FARSITE, and WFDS have been developed in the recent two decades.