S-290 Intermediate Wildland Fire Behavior Practice Test 2026 - Free Wildland Fire Behavior Questions and Study Guide

The term "torching" specifically refers to a phenomenon in fire behavior where individual trees ignite and burn from the bottom to the top. This typically occurs when the fire intensity is strong enough to preheat the lower branches and foliage, allowing flames to climb up the tree trunk and consume the rest of the canopy. Torching can lead to a rapid and volatile reaction, significantly increasing fire intensity and creating potential for fire spread.

Understanding torching is crucial for wildland firefighters and fire behavior analysts since it can affect tactics and safety considerations on the fireline. Recognizing how and when trees will torch assists in predicting fire behavior and managing resources effectively during a wildfire.