In fact, after the collapse dell'anticiclone that is driving these days of sunshine and warm most of the continent, with the severe weather in the coming days , probably live a few days break with the transition between 2 and 5 May, in which time is unstable phenomena but without very significant and with temperatures in line with the averages of the period, although there will be a strong convective instability in the afternoon, which will focus especially in inland areas of the Alps and Apennines. After May 5, however, a further drop in the Arctic, very cold, could invade Europe and especially its western areas, most likely the cold will affect mainly the United Kingdom where they are not excluded from record snow, even in the lowlands, and temperatures typically winter.
Updated below with MUST READ comments from Piers Corbyn
The cold could then spread to continental Europe, France and probably also to the Mediterranean via the Rhône Valley, bringing about Italy so much instability with snowfalls in the Alps and Apennines, instead of cool and rainy coasts and plains.
Stay tuned for more updates!
Original source link [Italian]: http://www.meteoweb.eu/2012/04/previsioni-meteo-a-mediolungo-termine-maggio-shock-tornano-freddo-e-neve/131759/
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British forecasters were probably right that two weeks ago predicted a very cold and snowy in May : the trend in the medium / long term, in fact, begins to give us clear signals about what will be the evolution of weather in Europe from 5-6 May onwards .