A fire spreading or set to spread with the wind.

Burning by means of strip firing.

Amount of heat released to the atmosphere from the convective-lift fire phase of a fire per unit time.

A wildland fire that is controlled by a strong consistent wind.

A line or set of lines, usually in 50' increments, used in external load operations that allow the helicopter to place loads in areas in which the helicopter could not safely land.

The general term used to describe the maximum overnight value of atmospheric relative humidity.

Bearing by true north rather than magnetic north.

A pre-determined complement of tools, equipment and/or supplies stored in a designated location, available for incident use.

Hose commonly of cotton, linen, or synthetic fiber construction without rubber tube or lining, often used for wildfires because of its light weight and self protecting (weeping) characteristics; such hose is attached to first-aid standpipes in buildings. At a specified flow, friction loss in unlined hose of a stated diameter is about twice that of lined fire hose. 

Characteristics fire cone-shaped pattern left by a fire on a wall, at or near its point of origin.