A number, on a scale of 1 to 6, which reflects frequency and character of cloud-to-ground lightning (forecasted or observed). The scale for 1 to 5 is exponential, based on powers of 2 (i.e., LAL 3 indicates twice the lightning of LAL 2). LAL 6 is a special category for dry lightning and is closely equivalent to LAL 3 in strike frequency. 

Resources within a dispatch center's area of responsibility.

Period of seven consecutive calendar days designated in advance by the head of a department (5 U.S.C. 6101(a)).

Firefighting Resources of California Organized for Potential Emergencies. A multi-agency coordination system designed to improve the capabilities of California's wildland fire protection agencies. Its purpose is to provide more efficient resources allocation and utilization, particularly in multiple or large fire situations during critical burning conditions. 

A fire resulting from any operation or activity of a railroad, except smoking.

Identifiable human activity that historically has been a major cause of wildfires on a protection unit; one of the eight general causes listed on the standard fire report.

A control mechanism that allows a regulated quantity of foam concentrate to be introduced into the main hose line.

The vertical measurement of vegetation from the top of the crown to ground level.

The distance between the flame tip and the midpoint of the flame depth at the base of the flame (generally the ground surface), an indicator of fire intensity.

An estimate of the potential difficulty of fire containment as it relates to the flame length at the head of the fire.