The rapid advance of the head of a fire with a marked change in fireline intensity and rate of spread from that noted before and after the advance. A fire "makes a run" if such conditions are present
United States Department of Agriculture USDA Forest Service, Forests and Rangelands, Glossary of Terms, National Fire Plan, Washington, D.C., USA 2012. http://www.forestsandrangelands.gov/resources/glos sary/a.shtml, (For Fr - Amer) {497}