The formation of precipitation on the windward side of a mountain and the characteristics of wind B on the leeward side impacting weather are explained.
Foehn wind, also known as Chinook wind in South Africa, is a warm, dry wind that descends on the lee side of mountains. When moist air rises up against mountain ranges on the windward side, it cools and condenses to form precipitation, resulting in a wetter climate on that side, known as the windward side.
As wind B descends on side A of the mountain, it experiences adiabatic heating and becomes warm and dry. This leads to arid conditions due to the rain shadow effect on side A influenced by wind B.
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