Numerical rating of the potential occurrence of lightning-caused fires.

The period of combustion when a fire is spreading, usually accompanied by flaming combustion that releases heat to sustain the convection column.

Composite pattern of weather elements over time that affect fire behavior in a given region.

Wind direction which varies by 60 degrees or more during the period of time the wind direction is being determined.

The time (minutes) it takes for foam solution to drop out from the foam mass; for a specified percent of the total solution contained in the foam to revert to liquid and drain out of the bubble structure.

A group of incident personnel organized according to function and reporting to the Incident Commander or Unified Command. The ICS General Staff consists of the Operations Section Chief, Planning Section Chief, Logistics Section Chief, Finance/Administration Section Chief.

Any federal, state, or local emergency public safety, law enforcement, emergency responder, emergency medical (including hospital emergency facilities), and related personnel, agencies, and authorities. It is any organization responding to an emergency, or providing mutual aid support to such an organization, whether in the field, at the scene of an incident, or operations center. 

Emergency firing to stop, delay, or split a fire front, or to steer a fire.

The systematic application of methods, procedures, and techniques common to the field of wildand fire investigation as regularly applied to solve the problems of the investigation within each specifc scene's conditions and needs.

The act of determining that a fire exists; does not include determining its location.