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foehn
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| The foehn effect. When warm, moist air (1) crosses
a mountain range, it cools as it climbs the windward side and deposits
most of its moisture as rain (2). On its descent on the leeward side
of the range, the now drier air heats up much more rapidly (3), giving
rise to hot, dry weather downwind. |
A warm, dry wind coming down the leeward slopes of mountains due to air having lost its moisture while ascending the windward slope, then warming on its descent. See also chinook.
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