Wildland Firefighting Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What type of winds typically occur due to surface heating during the daytime in mountainous areas?

Downslope winds

Upslope winds

Upslope winds commonly occur in mountainous areas due to surface heating during the daytime. As the sun heats the ground, the air near the surface warms up, becomes lighter, and begins to rise. In mountainous regions, this warmed air moves up the slopes of the terrain, leading to an upward movement known as upslope winds.

This phenomenon is particularly common in the afternoon when solar heating is at its peak. The effect of these winds can be significant for fire behavior, as they can help to lift and spread heat and flames upward, potentially leading to increased fire activity. Understanding the dynamics of upslope winds is crucial for wildland firefighters, as they can influence how a fire behaves and spreads in mountainous areas.

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Crosswinds

Tailwinds

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