FOHN WIND explained This is a dry, warm wind found on the leeward side of a mountain range. As moist air rises over the mountain, it cools at the saturated lapse rate (1.5°C/1000ft), condenses, and releases precipitation. Once the air descends on the other side, it warms quickly at the dry lapse rate (3°C/1000ft). The result? A sharp temperature increase, often leading to poor aircraft performance, turbulence, and visibility challenges. You need to know this for Meteorology, especially how it af