Understanding how lightning affects forests—and why some trees catch fire more often than others.
This bulletin summarizes a comprehensive study on lightning and trees, drawing on field observations across the National Forests and laboratory tests to reveal which species are most at risk and how fires start.
This edition explains what lightning is, the different forms it can take, and how it interacts with wood, bark, and soil. It covers how often lightning strikes forests, where strikes are most likely, and how local terrain and climate shape fire risk. It also shares practical findings, such as the small but significant fact that only a small percentage of struck trees actually ignite, and which regions show higher hazard. The material is presented with clear definitions and real-world data that help readers understand forest fire dynamics.
- How lightning travels through air and wood, and what makes some trees more vulnerable.
- Regional patterns of lightning strikes and fire risk on National Forest lands.
- Which tree species and conditions most often lead to fires, and how ignition occurs.
- Key ideas about lightning zones and how geography affects danger.
Ideal for readers of natural science and forest management who want a grounded, data-driven view of lightning’s role in forest fires and how prevention can be informed by evidence.