NWCG Glossary of Wildland Fire (PMS 205)

The maximum “operating pressure” of a component or system. Identified as “WP” on Forest Service-qualified fire hose. Also known as “rated pressure".

Fire hose of conventional construction, woven on looms from fibers of cotton or synthetic fibers. Most fire department hose is double jacketed (i.e., it has an outer jacket protecting the inner one against wear and abrasion).

A hose connection with two outlets permitting two connections of the same coupling diameter to be taken from a single supply line.

Use of fire to dispose of organic yard waste i.e bursh, tree limbs, leaves, and weeds.

A conventional relative measure of fineness as applied to yarns. Coarse yarns have low numbers and fine yarns have high numbers.

A permanent 24-hour observing station.

A portion of the general fire weather forecast issued on a regular basis during the normal fire season specifically to fit the requirements of fire management needs; i.e., time, areas, and weather elements. These zones or areas are a combination of administrative and climatological areas, usually nearly the size of an individual forest or district.