There is high pressure over Italy and this means mostly sunny weather, with above average temperatures.. The disturbed regime of the Atlantic has increased in latitudewith a slightly undulating zonal flow that therefore does not favor the insertion of disturbances in our latitudes.
A truce in this anticyclonic domain will materialize on Friday, with the rapid passage of a cold front that will bring some precipitation and move the air with strong winds. Temperatures will drop locally to between 6 and 8 degrees, returning to more common values for the period.
The drop in temperature will be significant, but temporary. The nighttime clearings, which will immediately take hold in the central-north, will be favorable Local weak frosts also in the Po Valley at night between Friday and Saturday. Therefore, the first sensations of winter weather await us, although fleeting.
However, the change of air will be felt throughout Italy, enhanced by the strong winds coming from the northern quadrants that continue in front. The disturbance will evolve rapidly and will leave Italy in the early hours of Saturday.apart from the consequences of the variability in some parts of southern Italy.
From the anticyclone to the most wintery bad weather
During the weekend, the anticyclone will once again fully impose itself throughout Italy, with rapidly rising maximum temperatures. Warmer air masses at the altitude of the subtropical matrix will undermine the pre-existing colder air. Infiltration of humid air will return at the end of Sunday in the north.
It seems absolutely unlikely that the new phase of anticyclonic stability will last, with a pressure drop already at the beginning of the week. The Azores anticyclone will move northwards, favoring the descent of a large cold pocket over the heart of Europe.
The influence of this great depressive circulation will be felt immediately in Italy, with the probable introduction of a first disturbance already on Monday. The rains will reach a large part of the Central-North, while in the South the phenomena will arrive on Tuesday, November 21.
The colder air will favor a certain drop in temperature, but It could only be the beginning of a much more unstable and disturbed parenthesis in the following days, when low pressures could be generated in the Mediterranean. The evolution is not yet well defined, but Italy could participate.