High foehn: Difference between revisions
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<div class="definition"><div class="short_definition">( | <div class="definition"><div class="short_definition">(''Also called'' free foehn.) The presence of south foehnlike conditions at higher elevations of the Alps while the lower elevations and the plains or "foreland" to the north are under a cold [[air mass]].</div><br/> <div class="paragraph">Under these conditions, the mountains are often warmer than the lowlands. The warming is attributed to subsiding air in a [[synoptic]] anticyclone above the cold surface air. Although the winds in the warm air are apt to have a southerly component, the high foehn does not necessarily have strong, gusty [[foehn]] winds. However, this situation often precedes the foehn at the surface.</div><br/> </div> | ||
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Latest revision as of 14:24, 20 February 2012
high foehn[edit | edit source]
(Also called free foehn.) The presence of south foehnlike conditions at higher elevations of the Alps while the lower elevations and the plains or "foreland" to the north are under a cold air mass.
Under these conditions, the mountains are often warmer than the lowlands. The warming is attributed to subsiding air in a synoptic anticyclone above the cold surface air. Although the winds in the warm air are apt to have a southerly component, the high foehn does not necessarily have strong, gusty foehn winds. However, this situation often precedes the foehn at the surface.
