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The causes of the Foehn effect in the lee of mountains (adapted from: [1]) Dissolving Föhn clouds over Cumbre Nueva, La Palma, at an elevation of 1,400 m (4,600 ft) A Foehn, or Föhn (UK: / f ɜː n /, US: / f eɪ n / fayn, [2] [3] US also / f ʌ n, f ɜːr n / fu(r)n [4] [5]), is a type of dry, relatively warm downslope wind in the lee of a mountain range.
Foehn winds usually occur when the westerly wind belt moves northwards. [7]The foehn effect on the coastal plains of southeastern Australia is mostly linked with the passage of a deep low pressure system or westerly cold fronts across the Great Australian Bight and southeastern Australia that cause strong winds to reorient virtually perpendicular to some parts of the Great Dividing Range ...
A föhn or foehn is a type of dry, warm, down-slope wind that occurs in the lee (downwind side) of a mountain range. [ citation needed ] Föhn can be initiated when deep low pressures move into Europe drawing moist Mediterranean air over the Alps .
The wind can cause heavy storms with winds of hurricane strength and top speeds of up to 150 km/h (93 mph). The south wind on the northern side of the Alps is also called the south föhn ( Südföhn ), its opposite number on the south side of the Alps is also called the north föhn ( Nordföhn ).
Foehn effect; Foehn wind; Föhn cloud; H. Helm Wind; S. Southeast Australian foehn; Suetes; Z. Zonda wind This page was last edited on 13 February 2017, at 20:00 ...
On the leeward side of the mountain, the air flowing downward is known as a foehn wind. Because some of the moisture that has condensed on the top of the mountain has precipitated, the foehn (or föhn) is drier, and the lower moisture content causes the descending air mass to warm up more than it had cooled down during ascent.
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The interior Chinook is a föhn wind, a rain shadow wind which results from the subsequent adiabatic warming of air which has dropped most of its moisture on windward slopes (orographic lift). As a consequence of the different adiabatic rates of moist and dry air, the air on the leeward slopes becomes warmer than equivalent elevations on the ...