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Lithuanian hydrometeorological weather forecaster Teresė Kaunienė warns that in many parts of the country there will be a brief shower with thunderstorms tonight. According to her, it will begin to increase in the south of the country.
“Convection will begin to develop this afternoon; ball clouds will rise in many places. The most dangerous will be at night, starting in the southern areas with storm clouds and thunderstorms will fade in many areas tonight. The lowest probability is found in western Lithuania ”, says T. Kaunienė.
The rains will be heavy in some places tonight; expected to be within 12 hours. it will drop above 15mm. precipitation.
According to the synoptic, it is difficult to predict exactly where the faults will occur, because these are local phenomena, but the probability remains throughout Lithuania.
There is no doubt that tonight is the most dangerous night of the next week.
According to data from the Lithuanian Hydrometeorological Service, on St. John’s Day the wind will change direction, from 6 to 11 m / s, during the 15 to 20 m / s gust. The highest temperature is 26 to 31 degrees, in the extreme west of the country 23 to 25 degrees.
How long to wait on the weekend?
On Friday, according to the meteorologist, short rains are expected in many places, thunderstorms, but phenomena such as those that will visit us in Jonines will not occur.
The wind, as on St. John’s Day, is expected to change in a changing direction, 5 to 10 m / s, during storm gusts of 15 to 17 m / s. Temperature 14 to 19 degrees at night, 24 to 29 degrees during the day.
There will be a lot of rain and thunderstorms on Saturday. During the day, the temperature will stick to 22-27 degrees of heat, and at night it will drop to 14-19 degrees.
On Sunday, in the southwestern areas, it will rain briefly with thunderstorms and at night there will be fog. Temperature 12 to 17 degrees at night, 21 to 26 degrees during the day.
“And every day that temperature drops, by either a degree or two, but we don’t see any real cooling. When the tropical air leaves, it will just be warm and accompanied by that short rain, ”says T. Kaunienė.
Does it really rain through Jonines?
The article, written by Viktorija Mačiulytė, chief climatologist of the Lithuanian Hydrometeorological Service (LHMT), states that during Saint John’s Day, the average rainfall in Lithuania is 4 to 5 mm per day, which is up to 2 times more rain. per day. day before and after the day of San Juan.
In addition, these days are half a degree colder than the day before and after the day of San Juan.
It is remarkable that the often wetter and colder conditions can be characterized not only by Joninė himself, but also by a longer period.
“According to perennial values, the period of highest rainfall continues after Joniniai, almost until mid-July. The rainy period also includes July 10, which is popularly known as the” Seven Sleeping Brothers “or simply the” Sleeping Brothers. ” It is said that if it rains on this day, it will increase for another seven days or even seven weeks, “writes V. Mačiulyte in the article.
According to her, the Ionian period is also characterized by a lower air temperature than before and after. Average air temperature is June 23-24. In Lithuania it reaches about 15.8 degrees of heat, but the days before and after are warmer.
According to LHMT data, on average in Lithuania it rains more than it does not rain, but according to the climatologist, “it always rains in Jonines” is incorrect, since the recurrence of rainfall reaches 58% (17 out of 30 years) and 64% (19 of 30 years), respectively.
Looking back on the last three years, we are in 2020. June 23 Only the western part of Lithuania and the coast received heavy rains (61 mm fell in Klaipėda), and on June 24. it was without rain. 2019 St. John’s wort was quite dry, and in 2018 St. John’s wort was the closest value to perennials – it dropped a bit everywhere.
Tropical nights visited Lithuania
The Lithuanian Hydrometeorological Service (LHMT) reports nocturnal tropics, which are quite rare in our country.
According to the information provided, the average number of tropical nights in Lithuania per year is 0.7, or about one of those nights. Most of the tropical nights are found on the Lithuanian coast (an average of 1.4 nights per year in Klaipėda), and their abundance due to specific microclimatic conditions is distinguished by the Curonian Spit – 4.6 (or ~ 5) Tropical nights are recorded here on average per year.
The fewest number of tropical nights is recorded in the Samogitian Highlands. There are years that stand out for the abundance of such nights (for example, 17 tropical nights were recorded in Nida in 2010), and in some years there are no tropical nights in Lithuania.
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