Developed or undeveloped area that has been tested and will accommodate STOL aircraft.

According to the American Meteorological Society, a law describing the relationship of the horizontal wind direction in the atmosphere to the pressure distribution; if one stands with the back to the wind, the pressure to the left is lower than to the right in the Northern Hemisphere.

A map having lines of equal elevation that represent the land surface (Topographic).

The mark left on a landscape by fire.

An individual incendiary fire.

Aircraft operating in accordance with clearances within control zones in weather conditions less than the basic Visual Flight Rules weather minima.

In the 1978 version of NFDRS, the herbaceous stage when cold temperatures kill herbaceous plants and force woody fuels into dormancy.

The heating of the earth's surface by both atmospheric infrared radiation and incoming solar radiation.

A coat with a fire resistant outer shell and a thermal and moisture barrier liner. Used primarily by structure firefighters.

A burn where the outer layer of skin is burned through and the second layer of skin (dermis) is damaged and is typically, a painful injury. Burns of this type cause reddening, blistering, and a mottled appearance.