A sudden increase in fire intensity or rate of spread strong enough to prevent direct control or to upset control plans. Blow-ups are often accompanied by violent convection and may have other characteristics of a fire storm. (See: Flare-up)
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}