Unit 1 - Basic Concepts of Wildland Fire 01-1-S190-EP Unit Objective Define basic terminology used in wildland fire. 01-2-S190-EP Parts of a Fire 01-3-S190-EP Origin 01-4-S190-EP Head 01-5-S190-EP Flank (Flanks) 01-6-S190-EP Rear or Heel 01-7-S190-EP Perimeter 01-8-S190-EP Finger 01-9-S190-EP Pocket 01-10-S190-EP Island 01-11-S190-EP Spot Fire 01-12-S190-EP Head •Left Flank •Right Flank Rear or Heel •Origin Which flank is more active? Where would you start to fight this fire? 01-13-S190-EP What are these two fire parts called? 01-14-S190-EP Fire Behavior Terms 01-15-S190-EP Smoldering Fire burning without flame and barely spreading. 01-16-S190-EP Creeping Fire burning with a low flame and spreading slowly. 01-17-S190-EP Running Fire spread rapidly with a well defined head. *Click on image to play video 01-18-S190-EP Spotting Fire producing sparks or embers that are carried by the wind or convection that start new fires beyond the main fire *Click on image to play video 01-19-S190-EP Torching 01-20-S190-EP Crowning Fire advances from top-to-top of trees or shrubs more or less independently of the surface fire. *Click on image to play video 01-21-S190-EP Flare up Sudden acceleration of fire spread or intensity, but of relatively short duration. 01-22-S190-EP Firewhirl A spinning, moving column of ascending air rising within a vortex and carrying aloft smoke, debris, and flames. *Click on image to play video 01-23-S190-EP What type of fire behavior is this? *Click on image to play video 01-24-S190-EP What type of fire behavior is this? *Click on image to play video 01-25-S190-EP Other useful firefighting terms • • • • • • • Anchor point Control line Fireline Mop-up Contained Controlled L.C.E.S. 01-26-S190-EP