Tuesday, November 20th 2012, 4:38 PM EST
The forecasting model called GFS, one of the most authoritative and accurate, confirming the possibility of cold weather with the peak around December 5. We're talking, it's true hypothesis, but we're here to talk about it after many days, and is already confirmed. Beyond then the exact configuration of the phenomena there are two considerations that may lead to the occurrence of hypotheses still icy very early winter, possibly even to "repetition".
The first is that, as you read yesterday, the amount of snow on the north of Europe and Russia is a record. means cold, cold ground and usually also accompanied by high pressure. An amount of cold air, a reservoir, ready to be channeled towards us as soon as the baric configuration allows.
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A tank which will only increase in the coming months. The second is that there is a continuing trend of tongues "disturbed and cold" to go down to very low latitudes, and at least for what little we can see from the models that will intensify in the coming weeks, even pushing for the formation of other cut-off and a cold connection between Russia and Italy, while the cold isolatasi will drop abruptly pushed westward, which often happens when the Russian winter means its on Italy.
The temperatures at high altitude, to give an idea, it may take from the current +7 ° C to -5 ° C to about 1500 meters, provided more than enough to the snow up to the floor, especially if it were allowed to form a cushion to cold soil.
Another consideration is that nature tends to walk the streets has already scored. As with the sad summers when we see the cold air sinking in the west of Portugal and back reservoirs hot air, it may now be the turn of the hot air that travels across the Atlantic while Italy would be open to all current Siberian . It 's my best wishes to the many lovers of cold and snow.
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