Document Type


Publication Date

January 1978


The BLM (Bureau of Land Management) fire management personnel routinely use a fire danger computer program to estimate the effects of recent weather upon the fire hazard on the BLM rangeland sites. The program used for this purpose is the National Fire Danger Rating System (NFDRS) which was developed by the National Forest Service (Deeming, 1978). The NFDRS was used in conjunction with fire weather stations in the Great Basin for the dual purposes of evaluating the ability of NFDRS to predict fire danger and of determining the effectiveness of the present fire station network in detecting fire weather on the Great Basin rangelands. Seasonal fire frequency and real time fire occurrence were examined with respect to climatic and weather variable to determine the meteorological parameters which are most closely related to fire occurrence. These parameters were then used to delineate zones within the Great Basin of approximately equal fire climate. The climate relationships are also discussed with regard to the possible development of pre-season fire projection models.