What effect does wind have when passing through a saddle or pass in a mountain range?

When wind passes through a saddle or pass in a mountain range, the terrain constricts the airflow, leading to an increase in wind speed. This phenomenon occurs because as the wind moves from a wider area into a narrower passage, the same volume of air must move through a reduced space, which causes it to accelerate.

Additionally, the complexities of the terrain can result in turbulent flow, often referred to as eddy action, where the wind can swirl in various directions. This increased speed and potential turbulent behavior can significantly impact fire behavior by contributing to the rapid spread of flames and smoke, making this characteristic of wind in mountain passes particularly critical for fire management and suppression strategies.