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Christmas week began in Italy with a typically autumnal day from the meteorological point of view: the day of Winter Solstice in Italy there was no winter climate, on the contrary, especially in the Tyrrhenian regions and in the south we had particularly high temperatures, well above the average for the period. The highs, in fact, have reached + 19 ° C in Palermo, Cagliari, Latina, Trapani, Lamezia Terme, Positano and Battipaglia, + 18 ° C in Naples, Catania, Reggio Calabria, Syracuse, Caserta, Agrigento, Olbia, Alghero and Churches, + 17 ° C in Salerno, Lecce, Catanzaro, Civitavecchia and Marsala, + 16 ° C in Rome, Taranto, Grosseto, Portoferraio, Piombino and Crotone. In a context of calm winds and abundant brightness, in the central hours of the day the climate was particularly pleasant, suitable for any type of outdoor activity, especially in the larger islands but also in the Tyrrhenian regions. Temperate climate even in the Po Valley with + 10 ° C in Milan, Bologna, Venice and Udine and even warmer on the coasts with + 14 ° C in La Spezia, + 13 ° C in Genoa, + 12 ° C and Trieste.
In the coming days, the Azores Anticyclone will extend its ramifications across the western Mediterranean, incorporating Italy between Tuesday 22 me Wednesday, December 23, increasing temperatures even more and at the same time causing fogs in the Po Valley and the Central valleys. First in the northwest, ya Tuesday 22, between Liguria and Piedmont in particular in the Alps and on the coast of the Riviera di Ponente, then in the following days in Sardinia, Sicily and in general in the south until the morning of Christmas Day, the temperatures will exceed + 20 ° C. Therefore, it will be very hot.
The situation, however, on Christmas Day will change due to the irruption of cold air from the Arctic Circle: on the night between Christmas and St. Stephen, a “Super Arctic Cyclone” will form over central Italy, a storm that the Saturday 26 December will move to the Southern Regions where it will cause strong bad weather and heavy snowfalls down to low altitudes throughout the weekend, with cold winds and typically winter temperatures.
This will change even more next week, when a new deep Arctic cyclone will bring polar marine air masses from the North Atlantic to the western Mediterranean. It will be a great storm that in between Sunday 27 me Monday 28 it will hit the British Isles and bring heavy snowfall to the plains. Monday This new Arctic cyclone will hit France and in the next few days will determine a real “snow bomb” in northern Italy, in the Po Valley, thanks to the warm and humid currents of sirocco that at the same time will bring back a climate mild by the end of the year in the South.
Below are the pages to monitor the situation in real time, here are the images from radars, satellites and live rays:
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