This site provides an overview of factors that affect the ignition and spread of wildfire. Information is presented with 3-dimensional graphics and animations as well as audio descriptions and commentary provided by a fire behavior expert. Three scenarios are presented, that look at topography, fuels and weather. Critical fire weather patterns are also discussed, including foehn wind, large-scale subsidence, and sea breeze front. The content is taken from the COMET CD-based training module Fire Weather that was originally developed for and distributed to operational weather forecasters. This resource is available in Spanish and requires users to register before proceeding to the content area.