The side of an object facing the oncoming fire.

To review and compare outcomes with management and incident objectives desired for a wildland fire. One of the six component activities in an adaptive management process that may lead to adjusting future actions.

A forecast for a period extending from about two days to five days or a week in advance; there are no absolute limits to the period embraced by this definition.

A major failure of a closed liquid container into two or more pieces when the temperature of the liquid is well above its boiling point at normal atmospheric pressure.

An individual who may be assigned to or requested by an incident to serve as the sending unit's representative to oversee the care and treatment of crews, overhead, and equipment assigned to an incident.

The minimum criteria necessary for individuals to fill a specific position.

Smoke from prescribed fire entering a designated area at unacceptable levels.

Assembly of airfoils (rotor blades), together with a hub and attachments, that rotates about an axis to provide lift and/or thrust on a helicopter.

Upper High, High Aloft, Upper Level Ridge: A circulation feature of the upper atmosphere where pressure, at a constant altitude, is higher than in the surrounding region. Winds blow clockwise around an upper level high. Air in an upper level high is usually subsiding. This results in comparatively warm dry air with light winds over a large area. An upper level high may exist without there being high pressure at the earth's surface. 

A search technique dividing the specific origin area into lanes that are parallel to the advancing fire progression for the purpose of a systematic examination.