NWCG Glossary of Wildland Fire, PMS 205

The version of the ICS 209 report (Initial, Update, or Final).

The ending date and time of the reporting period of an ICS 209.

Automated date and time stamp applied when the ICS 209 report is submitted.

The total number of residences threatened by the fire. Residence is defined as a place where one lives; a house, apartment, or other shelter used as the residence of a person, family or household. This includes primary and secondary residences. Residences are threatened if they are at risk of loss or damage, or endangered during the course of the fire. This includes, but is not limited to, residences subject to mandatory evacuation.

In general, the ability of a system (ecological or human) to resist damage and recover from a disturbance. In ecology, resilience refers to the ability of the system to return to the pre-disturbed state with no assessment of whether that state is desirable or not. From a social perspective, resilience references the ability to return to the original state but also refers to the ability to recover to a state more likely to resist or recover quickly from future disturbances.

At a general level used to refer to the ability of a system (ecological or human) to resist damage and recover from a disturbance. In ecology, resiliency tends to refer to the ability of the system to return to the pre disturbance state with no assessment of whether that state is desirable or not. From a social perspective, resilience may reference ability to return to the original state but also can refer to the ability to recover to a state more likely to resist or recover quickly from future disturbance.

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.

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

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.

The characteristics of a structure and its immediate surroundings within 100 feet; the SIZ may be extended (e.g., to 150 or 200 feet) in areas of steep terrain or dense, highly flammable vegetation. The SIZ is the key determinant for structure ignition potential during wildfire.

The area where the factors that principally determine home ignition potential during extreme wildfire behavior (high fire intensities and burning embers) are present. The characteristics of a home and its immediate surroundings within 100 feet comprise the HIZ.

Landscaped and regularly maintained fuel break, usually put to some additional use (e.g., golf course, park, playground).

An area that, in relation to wildland/urban fire, has a set of conditions that provides the opportunity for fire to burn from wildland vegetation to the home/structure ignition zone.

Any area wherein residences and other developments are scattered and intermingled with forest, range, or farm land and native vegetation or cultivated crops.

A community that recognizes its risk and takes action before, during and after a fire in order for their community to be more resilient to wildfire. Fire adapted community members are informed and prepared, collaboratively planning and taking action to better live with wildland fire.