The week promises to be full of events weather report winter type, with snowfall possible down to the plains in certain areas of the Northern Italy between the Thursday 21 and the Friday November 22.
This phenomenon is linked to a vast cold depression which will extend from Northern Europe until the Mediterraneanbringing instability and atmospheric conditions typical of the cold season. The origin of this scenario lies in a mass of cold air coming from theNorthern Europe.
This depression will create strong atmospheric dynamism, with intense winds and significant drops in temperature. temperature.
During the passage of two distinct disturbances, rain and thunderstorms will be recorded, more intense along the Tyrrhenian areas exposed to humid western currents.
During the week, the arrival of cold air will follow the first disturbed front between mardi 19 and the Wednesday November 20.
However, the snowfall will initially be limited to altitudes above 1000-1200 metersespecially on Alpes.
It is only with the arrival of the second disturbance, forecast for the end of the week, that favorable conditions for snowfall at low altitudes will arise. The winter turning point will materialize with the arrival of the second disturbed front, accompanied by a cyclonic vortex on the More Ligurian.
This classic atmospheric configuration sees the presence of a cold air cushion on the Po plainfed by eastern currents in the lower layers.
Above, the influx of softer and humid air will favor the phenomenon of sliding of mild, moist air over colder airideal for training snow to the plain.
Snow precipitation will, however, be distributed unevenly: some areas could see significant accumulations, while others could remain on the fringes of the phenomenon.
The intensity of precipitation will be the key factor in determining the possibility of snow on the ground. Snowfall at low altitudes could affect the Northern Italy from the night of THURSDAY has Fridaywith snowflakes even over the main cities of the Po plain.
This will be possible thanks to a further reduction in temperatures caused by cold air at altitude.
In certain areas, heavy downpours could encourage heavier snowfall, with the possibility of snow on the ground until the early hours of Friday November 22. With the advance of the cold front, the instability will gradually move towards the Centre and the Southern Italyleading to a clear drop in the altitude of the snow on theApennineuntil reaching levels lower than 1000 meters.
Despite the speed of the event, the cold air that will follow will guarantee an improvement in the weather from the day of Fridaywith clearer skies at Nord.
The arrival of this parenthesis of true Winter will be brief, with temperatures expected to rise quickly during the weekend, especially in the Center-South, while in the North harsh conditions will persist for a few more days.
However, for a few days, the weather report will offer a taste of the climatic conditions typical of the cold season.
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