After the very brief respite of the weekend, the arrival of one is expected new wave of bad weather of mold Arcticthe first of great intensity for the central-southern regions. Let's point out that it won't be a wave of frost capable of bringing the snow up to the coastsbut it will still be a strong irruption cold arctic which, after several years, will reach Italy right at the height of the Christmas holidays.
Il cold front of the Arctic depression will lash the Central-South during theantivigilanceor Monday December 23. Already at this juncture we will witness heavy snow along the Apennines, with flakes that will reach up to the 600 o 700 m of altitude.
The most disturbed day for the Central-South it will be precisely that of the day before. After that, the baric minimum will move to the Greeceleaving the Central-Southern Italy and, in particular, the Adriatic side under the influence of cold northern currentswhich will favor the phenomenon ofAdriatic Snow Effect (ASE). The passage of thecold air above the milder waters than the Adriatic will give life to cumulus cloudswhich will transit on coasts, hills and mountainsespecially among Marche, Abruzzo, Molise e Puglia. This phenomenon will generate showers, showers, local hailstorms and, above all, heavy snowfall up the hills between Christmas Eve and December 25th.
The phenomenon ofASE will provoke heavy snowfalls along the central-southern Apennines during the December 24thwith a snow level which will stabilize around 500 m of altitude.
Between the evening of Christmas Eve and the morning of Christmas we will reach thepeak of bad weathercon widespread and heavy snowfall are Marche, Abruzzo, Molise, Puglia e Basilicata. The snow level it will go down further, until it touches i 400 m of altitude. In some cases, it is not excluded that white flakes may arrive 200 m among the low ones Romagna, Marche, Abruzzo e Molisegiving a real atmosphere White Christmas. Also Calabria e Sicily they will see snowfall above i 500 o 600 mwhitening many Apennine locations.
During the day of Natalethey will register again snowfall along the central-southern Apennines, with a snow level between i 400 e 500 m. Subsequently, the weather conditions they will gradually tend to improve, with a general attenuation of the phenomena and a gradual increase in snow level.
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