What caused the heaviest snowfall in Moscow in recent 50 years?

? In the past few days, the Russian capital Moscow has been hit by a continuous snowstorm, which has brought considerable impact on the lives of local residents. Snowfall has set a number of records, and the indoor snow thickness has increased to nearly 60cm?

? Since February 1 1 local time, the snowfall in the Russian capital Moscow has continued. According to the data of the Russian Hydrometeorological Center, the precipitation on February 13 reached 24 mm, which exceeded the hydrological record of 1973. The thickness of snow in Moscow is close to 56 cm. Experts say it will snow in the next two days or break the record of 1956 snow thickness of 60cm?

The bad weather has brought great inconvenience to the local residents. According to the statistics of Moscow traffic department, from the morning of 13, the road congestion in the city was serious, and the biggest congestion occurred indoors. On the Huanxian overpass, large vehicles skidded and could not climb, causing traffic jams for several kilometers. The traffic police department in Moscow provided rescue services for 387 large vehicles that day, and more than 50 flights were delayed at three airports in Moscow?

The local government appealed to people to stay at home as much as possible, and mobilized 1.2 million sanitation workers and nearly 100 snow sweeping equipment to sweep the snow in the urban area. The local meteorological department said that the bad weather will not stop completely on June 5438+03, but the snowfall will ease in the evening.

? Snow is a natural phenomenon. Due to the difference of meteorological conditions and growth environment in the sky, all kinds of atmospheric solid precipitation are caused. The names of these atmospheric solid precipitation vary from place to place and from person to person, with various names and unified grades. For convenience, the International Ice and Snow Committee under the International Hydrological Association held a special international conference in 1949, and adopted the Proposal for Concise Classification of Atmospheric Solids and Precipitation. This concise classification divides atmospheric solid precipitation into ten kinds, which are collectively called snow.