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orographic lifting
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Diagram showing orographic lift, where moist air rises up the green, windward side of a mountain, cools and forms clouds with precipitation, while the opposite, brown lee side remains dry in the rain shadow.
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orographic lifting

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Diagram showing orographic lift, where moist air rises up the green, windward side of a mountain, cools and forms clouds with precipitation, while the opposite, brown lee side remains dry in the rain shadow.
orographic lift Condensation, precipitation, and the rain shadow effect resulting from orographic lift.

Orographic precipitation occurs when moist air is forced to rise over a mountain range. As the air ascends, it cools, leading to the formation of clouds and subsequent precipitation, such as rain or snow. This precipitation primarily falls on the side of the mountain facing the prevailing wind (upwind).1

The area on the leeward side of the mountain, where less precipitation falls, is known as a rain shadow. Orographic clouds are a specific type of cloud formation resulting from this process. Precipitation is a crucial part of the hydrologic cycle, returning atmospheric moisture to Earth's surface.12

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2 Britannica Sources
  1. orographic precipitation
  2. climate - Cloud types

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