L’winter took a little break just after the Christmas cyclonewho had brought rains and snowfall at altitudes collinaires in many regions of the South-Central.
Now the temps is stable in every corner of theItaly and also over a large part of theCentral-Southern Europethanks to the presence of an invasive field of high pressurea direct consequence of the resumption of polar vortex.
A looming polar vortex crisis
The polar vortexhowever, could suffer a new and deep crisis from the first week of January.
The combined action of the main anticyclones of our hemisphere, namely that Siberianthat of Aleutians and that of Azorescould break the polar vortex, forcing it to release its cold towards lower latitudes.
Icy wall in sight
Much of this zone froide could head between the Siberia et l’Central-Northern Europewhere already approaching theEpiphany THE temperatures will begin to fall precipitously.
In the space of a few days, a real mur glacial could form on theEastern Europe and the Scandinaviawhich would have notable repercussions for the rest of the month of January. Part of this air froid could reach with great ease theEurope centrale and also theItalybecause it would suffice with small movements of theAzores high pressure in theAtlantic to open the “faucet” of theair froid towards the Mediterranean.
The “perfect snowfall” in the North
The latest updates from weather models show a potential interaction between the cold of theEastern Europe and the Atlantic disturbances.
From this combination could be born what we could call the perfect snow fall for the regions of Nordwhich would see both the presence of air froid in the lower layers and heavy precipitation. Right after theEpiphany and until mid-Januarya period meteorological very eventful could open, with snowfall potential at altitudes plaines in the regions of Nord and at low altitude in the regions of Centre.
Naturally, it is absolutely not clear at the moment what trajectory this “river” of air froidon which the presence or absence of snow in the regions of Nord.
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