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“For those who miss snow, the good news is that the situation is finally favorable for drizzle and snow. The main supplier of energy from the atmosphere to Europe is that the atmosphere is fragmenting and weakening, and will soon regroup. The main air mass flows will be diverted to the Arctic and North Africa and the Mediterranean.
The currents themselves do not supply heat directly to Europa during the cold season, as they form near the tropopause, at an altitude of about 10-12 km. However, with their circulation system, they allow medium width low and high pressure vortexes to move and develop faster and thus transfer heat and moisture. The currents over the North Atlantic and Western Europe generally run in a latitudinal direction (that is, west to east or southwest to northeast). Atmospheric vortices move in these directions and carry (warmer) marine air masses toward Eurasia and the Arctic. With the weakening of the flow over Europe, the direction of the meridian begins to prevail and the barrier formations become less mobile and inactive, ”writes Gintautas Stankūnavičius, associate professor in the Department of Hydrology and Climatology at Vilnius University (VU).
According to him, and tomorrow the west winds will abate in Lithuania, the weaker east and north winds will prevail.
“Such changes in transmission will be determined by the Atlantic cyclone, which is still active today and will be full tomorrow. Also, the colder air masses will enter the Baltic region in the higher atmosphere, which will likely be the main reason for the negative temperature that will prevail over the weekend and into the next week.
No need to worry about cold, because the daily average air temperature will be only -0.5 – -3.5 ° C, and on the seashore it will remain positive in the near future and only in the second half of next week it is forecast to be around 0 ° C ”, the meteorologist shared.
According to him, the cloudy weather with rainfall will be determined by the cyclone that will form over Ukraine tomorrow.
“Its back (the colder side) will bring cloudy weather with precipitation to Lithuania (mainly drizzle). In contrast, a much warmer climate and liquid precipitation from the Black Sea will arrive in Central Russia at this time of year. The center of this cyclone is expected to reach the Gulf of Bothnia on Monday and eventually fill there. As the cyclone is filling over the Baltic region on Monday, the west-southwest wind will return to Lithuania for a short time.
Once the cyclone finally fills the high-pressure areas centered over northern Kazakhstan, it will expand westward and its circulation system will cover all of eastern and part of central Europe and Scandinavia. As a result, the atmospheric pressure in Lithuania will increase and a steady but weak southeast wind will stabilize. Even in high pressure conditions (1025 – 1030 hPa at sea level), cloudy and cloudy skies with light rain (mainly wet) will prevail. It will cool in almost all of Europe, except in the northeast (Russia) and southwest (Spain) parts. The highest rainfall will occur in the coastal regions of the Mediterranean and on the western slopes of the Scandinavian mountains, ”writes G. Stankūnavičius.
The meteorologist affirms that the main precipitations that will appear in Lithuania in the near future will be drizzles and snow. G. Stankūnavičius predicts that a layer of snow should form, which in some places can even reach more than 10 cm.
“As already mentioned, the predominant type of precipitation during the weekend and next week is snow and sleet, so a layer of snow will form in Lithuania. First, the highest probability of its formation will be in eastern and northeastern Lithuania, then Samogitia and central Lithuania.
By the end of the next week, the thickness of the snow cover in some places may exceed 10 cm. It will probably not be a permanent snow cover; for this it should last at least 20 days and in the absence of frost it is unlikely. Furthermore, according to data from the European Center for Medium-Range Forecasts (ECMWF) in the second decade of December, the forecast is expected to again increase western wind transport and adventure by sea air in the Baltic region ”, shares G Stankūnavičius.
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