Wildland Firefighting Practice Exam

What do Foehn winds in Northern California specifically refer to?

1. Santa Ana winds

2. North winds

3. East winds

4. Mono winds

The correct answer is: North winds

Foehn winds, particularly in the context of Northern California, generally refer to specific wind patterns that occur as a result of orographic lifting. When moist air flows over a mountain range, it rises and cools, leading to precipitation on the windward side. As the air descends on the leeward side, it warms and dries out, creating strong and sometimes dry winds. In Northern California, the term "Foehn winds" is often closely associated with the north winds, particularly those that can enhance fire spreads by creating dry conditions and raising temperatures. These winds are characterized by their warm and dry nature, contributing to the fire weather conditions that can escalate wildfire risks during certain times of the year. In contrast to other types of winds mentioned, such as Santa Ana winds (commonly associated with Southern California), east winds, and Mono winds, the reference to north winds highlights the specific regional weather patterns that influence wildfire behavior in Northern California. This makes northern winds a more relevant and accurate descriptor of the Foehn wind phenomenon described in this context.