The sum of all wildland fire danger factors that change from day to day, such as weather, fuel moisture, plant growth, and varying hazards caused by people. See also: Constant Danger
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}