A net attached by a lanyard to a helicopter cargo hook and used to haul supplies.

Term used in resource planning/following to estimate time spent between points.

A level of certainty that is feasible but does not rise to the level of probable.

Preburning of fuels adjacent to a control line before igniting a prescribed burn. Blacklining is usually done in heavy fuels adjacent to a control line during periods of low fire danger to reduce heat on holding crews and lessen chances for spotting across control line. In fire suppression, a blackline denotes a condition where there is no unburned material between the fireline and the fire edge.

Regional climate under the predominant influence of the sea, that is, a climate characterized by marine air; the opposite of a continental climate.

Any situation in which it is highly dangerous to fight fire.

The use of water, foam or retardant along a control line in advance of the fire. Often used where ground cover or terrain is considered best for control action.

The ICS title for a member of the Command Staff authorized to make decisions and take action related to his/her area of responsibility.

Recording instrument combining, on one paper record, the variation of dry-bulb temperature and relative humidity as a function of time.

Arithmetic average of all fire intervals in a given area over a given time.