Qualitative risk assessment is the application of judgment based in knowledge and experience when assessing wildfire risk, the potential for ignitions and recommendations regarding possible ways to mitigate the risk.

Quantitative risk assessments provide a method by which we can calculate risk based on measurements or estimates of various risk components such as likelihood of fire occurrence, intensity of fire should it occur, and susceptibility to fire of the various values being evaluated.

Systematic process to comprehend the nature of risk, express and evaluate risk, with the available knowledge.

Facilities Unit staff set up, maintain, and demobilize all facilities used in support of incident operations. This staff provides facility maintenance and law enforcement/security services needed for incident support. Facilities Unit staff set up the Incident Command Post (ICP), Incident Base, and camps (including trailers or other forms of shelter in and around the incident area) and ensure the maintenance of those facilities. This unit’s staff provide and maintain personnel support facilities, including areas for eating, sleeping, sanitation and showers, and staging.

In fire suppression terminology, a fire spreading from any fire originally ignited to clear land or burn rubbish, garbage, crop stubble, or meadows (excluding incendiary fires).

A procedural guide which describes fire meteorological services provided within the Geographic Area of responsibility, including the National Interagency Fire Center. The guide is based on the National Interagency Agreement and applicable Geographic Area Memorandum of Agreement. 

Aircraft navigational equipment that provides the slant range distance in miles (kilometers) from the aircraft to the VOR (VHF Omnidirectional Radio Range) station to which the DME is tuned, usually at or near an airport.

Fire retardant cascaded from an airtanker or helitanker.

Composition of fuel laterally across the landscape.

Water with added chemicals, called wetting agents, that increase water's spreading and penetrating properties due to a reduction in surface tension.