Fohn Wind effect ....

Fohn wind effect
Fohn Wind Effect is an effect whereby the leeward
side of a mountain range is drier and warmer than the
windward side. This would be more pronounced if the
wind was blowing from tile sea towards a coastal
mountain range, as the air would then be moist. Fohn
wind effect is the direct result of the difference
between the DALR and the SALR of air as illustrated
below:Imagine an onshore breeze, of 25°C temperature
and 15°C dew point, blowing against a mountain
range 3 km high.
This onshore breeze begins to ascend and its
temperature drops by 1DoC per km height (DALR). On
reaching a height of 1 km, the temperature of the air
has fallen to 15°C, which is also its dew point. The air
is then saturated. On ascending further the
temperature drops by about 5°C per km height
(SALR). The excess moisture in the air is given off as
orographic cloud and then heavy rain falls on the
windward side. On reaching the top, the air will still be
saturated and its temperature would be about 5°C.
While descending on the leeward side, the
temperature of the air would increase at 10°C per km
(DALR). This is because, once the temperature of the
air begins to rise even by a small amount, the air is
not saturated any more. On reac~ling sea level on the
leeward side, the temperature of air would have
increased to 35°C. Since the same air was saturated
at 5°C and no water vapour has been let in or taken
out, the dew point of the descending air would be 5°C.
Comparing the temperature and dew point on the
windward side (temperature 25°C, dew point 5°C), it
is clear that the leeward side is warmer and drierlhan
the windward side. It is also clear that h avy
precipitation occurs only on the windward side an no
precipitation occurs on the leeward side, whic is
hence referred to as the 'rain shadow area' of the
mountain range.
[24/04, 11:31 am] ankit123 sa26: Conditions at the Summit:
Upon reaching the mountain top:
The air remains saturated, and its temperature is around 5°C.
[24/04, 7:36 pm] ankit123 sa26: What is an example of a fohn wind?
The Chinook wind, which occurs on the eastern side of the Rocky Mountains in the Pacific Northwest, is a classic example of a foehn wind driven by latent heating and precipitation.

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Worst explanation ever!!

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Ok appreciated 😊😊😊 ...