June 3, 2013. Floods in Central Europe, threatening to become a flood of the century, unusual heat in the Murmansk region and in the north of Siberia, the rains in the south of the ETP, Belarus and Ukraine, the cold weather in the south of Siberia and even Snow in the Kemerovo region, high rain floods in the south of the Far East — the most notable weather events of the last days in the territory of Eurasia.
But so are the waves in the middle troposphere. West-east transport in the troposphere over the continent broken — it was replaced with another scheme of circulation. Active recently easterly waves led not just to enhance the meridional circulation — on the map shows that the continent has arisen 3 conjugated block. Now each of them has a form of "dipole" — anticyclone located in the north, to the south of it — a sedentary cyclone. They have a large vertical length — at least European unit extends throughout the thickness of the troposphere to 9-11 km.
Where there is an anticyclone, — the very warm weather. Where the cyclone — cool and rainy. Significantly disrupted the usual latitudinal distribution of temperature. Blocking means slowing down or even stop the western atmospheric waves and the weakening of air movement, and, therefore, the maintenance and preservation of their properties. There, where the heat can be even warmer, and where it rains, they will continue to go.
The second, no less important to the nature of the weather, after the atmospheric waves, factor is the underlying surface, which can enhance or reverse the outcome of the process. In the north-west of the European Russian air mass over the continent in a cloudless anticyclonic weather is warming up with each passing day more and more, and this contributes to long daylight hours, which is farther north, can last all day. Since May 31, immediately blocked by 4,5 ° absolute maximum temperature in Murmansk 29,4 ° (24,9 ° in 1984). In Murmansk hotter than in Sochi! Records of heat can boast of our northern capital. On the eve of St. Petersburg, the air warmed up to 29,2 °, which is 0,1 ° higher than the record in 1995. Possible record and June 3.
Central Europe over the long rains in complex topography and dense river network, lead to severe flooding.
In the south of the continent of Siberia warming and prevent the transformation of air masses often dense cloud cover and lower tropospheric cooling in the cyclone. The matter comes up short snowflakes (in Kemerovo), or until frost.
In the coming days and is expected to remain slow moving dipole European west. The destruction of the block in the troposphere over Europe numerical models predict 5-6 day (weather change in the border areas can be faster).
Do not repeat the year 2002? — Worries TV channel "Euronews". In the Czech Republic due to the heavy rains greatly increased the level of water in the river Vltava. Gangs set fire protective barriers in a number of areas of Prague. Close to the Czech capital in the floods killed a woman. Third, the highest level of danger, has been declared in 40 cities.
The rains caused flooding in many areas of Austria. In the Tyrol under water was one of the villages after a dam burst protection. In some homes water enters from one side and exits from the opposite side. Evacuated residents of a number of settlements. All the more dangerous is the situation in the south and south-east Germany, where out of the banks of the Danube. The highest level of danger announced in the Bavarian city of Passau, Misbah and Rosenheim. In the historic center of Passau flooded streets and basements. Remains tense situation in other parts of Germany.
Europe: Catastrophic rainfall and flooding. The heat and cool in the north to the south. Heavy downpours hit the Germany, Austria, Czech Republic, Slovakia, Italy, Belgium, the Netherlands and the Eastern Mediterranean. Monthly precipitation totals are almost universally exceeded the norm by 2-4 times. The catastrophic floods, which brought huge material damage and loss of life, have been the most destructive in the last hundred years. In the north of Europe, Scandinavia and the Baltic countries was abnormally warm (temperature at 4-5 ° more than the norm), and in the south of France and in Spain abnormally cool. Resorts of the Costa Brava, Mallorca and Menorca were bombarded with snow pellets.
The central regions of European Russia: The heat and extreme drought. August 2002 entered the top ten of the hottest, and the average temperature of the last eight months — the highest in the last 100 years. Heat added to the strongest rainfall deficit: in many areas the amount of rainfall was less than 50% of normal. In some areas, there was no precipitation at all. In Moscow last summer was the driest since 1897 for all summer in Moscow, total precipitation was 87 mm, which is only 10 mm longer than the norm for only one of August.
Volga region, the Urals and Western Siberia: Summer's not there. The fifth month in a row in the region held a negative temperature anomalies. In the Volga region last August — the coldest in the last 12 years. Precipitation in normal and overweight dropped, mainly in the north and in the south of the Volga — drought.
Eastern Siberia and Central Asia: In eastern Siberia, especially in the Trans-Baikal region, in eastern Kazakhstan, countries of Central Asia, Mongolia, western and central regions of China was very hot: the mean monthly temperature anomalies exceed 2-3 °, and sometimes 4 °. The heat on some days reaching 40-45 °. Rainfall was low.
Far East: The second month is a negative temperature anomalies. In August, the average temperature is 2 ° below normal. Those who came here typhoons brought heavy rainfall, which is 1.5-2 times higher than the norm. In Japan and Korea, the second month, in the south-eastern China — the third continuous rains come. Severe floods have brought numerous victims.