According to a post by the director of EMY, Thodoris Kolydas, about Cairo of the following days, tomorrow Tuesday will be windy Foen type winds.
“Many times we have seen similar differences or even greater than 16°C between North-West Greece and Southern Island regions, especially in cases where strong southerly downward winds prevail. Of course we are not referring to something “unprecedented”, such as e.g. for today’s 28 °C in Heraklion and 11 to 12 °C in the northwest” writes Mr. Kolidas.
“Tomorrow Tuesday we may catch even higher prices (the 30s), but it will not be many, as stated in the press. These prices will be limited mainly to Crete, or where they will play an important role again the locally enhanced Foen-type downslope windshe notes.
What are Foen winds
According to meteo, the term was originally used for dry and warm winds created on the leeward side of the Alps, but then prevailed as a term for local winds created by this mechanism in many regions of the Earth.
How are they created? the Foehn-type winds? A basic condition is that there is a high vertical obstacle to the wind flow, such as a mountain range. The air is initially forced to rise on the windward side of the mountain mass, where by condensing its water vapor it forms clouds and in some cases gives rain, storms or snowfall, while it then descends on the leeward side of the mountain mass where it dries and warms at a rate of about 10ºC per 1 km.
The effect of the flow of this wind, as shown in the figure below, it is the rise in temperature on the leeward side of the mountain mass to levels higher than the initial temperature of the air mass on its leeward side.
In the Greek area, descending winds like Foen they usually occur in North Crete when strong southerly winds blow, in South Crete when strong northerly winds blow, while quite often they also appear in the eastern continental parts when strong westerly winds prevail or in Western Greece when east to north-easterly winds prevail.
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