What weather conditions does a Fohn wind produce on the lee side of a mountain?

The question pertains to the effects of a Fohn wind, which is a type of dry, warm down-slope wind that occurs when moist air ascends over a mountain range and loses moisture through precipitation on the windward side. As this air descends the leeward side of the mountains, it undergoes adiabatic heating, leading to increased temperatures and decreased humidity. This phenomenon is crucial in understanding weather patterns related to mountainous regions.

The correct answer highlights that the Fohn wind results in warm, dry air on the lee side of the mountain. This occurs because, as the air descends, it compresses and warms significantly, causing a drop in relative humidity. Consequently, the leeward side experiences a specific climate characterized by less precipitation and higher temperatures compared to the windward side.

The other options, while they might appear plausible in different contexts, do not accurately reflect the characteristics of a Fohn wind. For instance, the presence of warm, moist air with precipitation would typically describe conditions on the windward side, not the leeward side where the Fohn wind influences the environment. Cold, moist air and cold, dry air are also inconsistent with the expected weather patterns of Fohn winds as these processes are predominantly