Wildfire Hazard Mapping

Wildfires, often referred to as forest fires, involve the combustion of areas of forest, brush, or grass. Wildfire danger increase during times of drought or seasonal lower precipitation when the fuel moisture content decreases. Wildfires can be caused by human activity such as smoking, campfire use, etc.,  or by natural occurrences such as lightning strikes during extreme weather or volcanic activity. Wildfires can cause death, injury, and loss of personal property and forest resources. 

  USA Wildfires Map - click on lower right

   Maps are used to study wildfire hazard in various ways. Maps can show current fire hazard by combining fuel moisture data with current weather conditions. Maps are used to depict current and historic fire events. GIS (Geographic Information Systems) can be used to model fire behavior based on input such as local terrain, prevailing weather patterns, and forest fuel characteristics in order to map local areas with increased risk.

   Wildfire hazard mapping in the United states is a multi-agency effort. The USFS, NPS, BLM, NWS/NOAA and other federal, state of local agencies may be involved. Some useful wildfire hazard mapping resources are listed at left.

   To learn more about wildfire hazards in your area, contact the appropriate local, state or federal agency. If you plan to build, develop, or inhabit areas subject to wildfire hazards, consult a qualified professional regarding the hazard, your risk, and options for mitigation. The information on this site is only intended as an educational tool to help you get started. By using it you are subject to our terms of use.

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Wildland firefighter, San Diego, CA, 2007.

Photo A.Booher. Courtesy FEMA.