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According to the climatologist, despite the return of winter weather, today in Lithuania there is a medium or strong gust from the south and southwest, and in the western part, a western wind, which carries portions of air of marine origin to the depths of the continent.
“From today until Tuesday, the average air temperature will rise above 0 ° C throughout Lithuania, and atmospheric fronts traveling from the Northeast Atlantic will cause rainy weather (in places with drizzle). It is forecast to fall. at 10-15mm this weekend and at 20mm in the western part of Lithuania, mostly rain and sleet. That’s about 40-60% of the monthly rate, “he explained.
He also noted that such a sudden change in weather conditions – strong winds, warming and liquid phase precipitation is likely to lead to the complete thaw of the Curonian Lagoon (there are still larger areas of continuous ice in the southern and southeastern part of the region) . lagoon).), will eventually clear rivers of ice and significantly weaken the ice cover of ponds (especially Kaunas lagoon) and lakes.
“The precipitation will partially prolong the weakened tidal wave where it has not yet ended. The situation in the smaller rivers in the west, center and north of Latvia is similar to that of Lithuania: the flood wave is already weakening (Gauja, Lielupė, Venta, Salaca, etc.), but in the middle of Daugava, Aiviekste and some other rivers in eastern Latvia, the spring flood continues ”.
Today, explained G. Stankūnavičius, the deep cyclone valley (north central Faroe Islands – 960 hPa) with precipitation moves through Lithuania, and tomorrow the less active, but with precipitation, the atmospheric front will disappear.
“On Sunday, the center of the cyclone will approach Lithuania from the west, and on Monday, another atmospheric front. The reason for such a rapid change in bar structures with precipitation is the series of Atlantic cyclones. This time, the The peculiarities of its movement are classic: the cyclone at the head of the series occupies the northernmost position in Europe, the next, younger, travels a more southern trajectory, and another one glides through Central Europe.
Finally, at the end of the cyclone series (averaging 3 to 5 cyclones), the high pressure ridge intensifies and cyclonic activity in Europe is temporarily interrupted. Therefore, this ridge will stop the western air mass transfer from Tuesday, but will strengthen the north. Therefore, the climate will cool almost all of Europe, except the northwestern part and southern part of Russia, ”said the climatologist.
By the middle of next week, he continued, a cold continental air mass would dominate most of Europe. The night will be cold again and during the day there will be light snow or sleet, with light to moderate north winds.
“During the day, the air temperature will rise above 0 ° C, but the sensory temperature will remain low. We could expect more significant climate changes (that is, the next strongest warming) next weekend, when the air mass of marine origin once again reaches the northwestern Baltic region.
This period with frequent changes in air masses and temperature fluctuations is not anomalous either for Lithuania or for Central Europe. Although it is now a calendar spring, March is considered the winter season due to the characteristics of large-scale atmospheric circulation. “
According to the climatologist, only at the end of this month the centers of atmospheric activity, such as the Siberian (Asian) high-pressure system, the Icelandic and Aleutian low-pressure systems, and the Azores and Hawaii (Pacific) Subtropical anticyclones, so Generally, they begin to change from their typical locations.
“On average, starting next week, the radiation balance in Lithuania will change from negative to negative, which means that the solar energy reaching the earth’s surface will start to exceed the radiated energy, the surface will acquire a trend to warm up.
During the remainder of March and early April, stronger weather anomalies are not expected in both Lithuania and the Baltic region. In the second half of the month, the anticyclonic climate is more frequent, which will reduce the probability of rainfall and increase the duration of insolation ”.
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