Residents of Novosibirsk witnessed rare phenomenon of nature – snow snow storm that hit the city on November 9th. This is the first such case in the history of meteorological observations in the capital of Siberia, say forecasters.
According to eyewitnesses, at first the sky belched snow flakes the size of a chicken egg, alternating with the rain, transformed into a downpour, then thunder boomed and lightning flashed, reported by “Novosibirsk news”.
Some citizens were scared of the phenomena, which they saw for the first time, the newspaper notes. Eyewitnesses compared the unprecedented act of nature with a summer shower during a thunderstorm. Then the snow gave way to short, but extremely intense snow Blizzard, reports TASS.
According to the West Siberian meteorologist, the storm was local and was observed only in Novosibirsk. It lasted only 13 minutes – from 20:22 to 20:35 local time.
“This phenomenon for the entire observation period celebrated for the first time”, – told the chief forecaster of the Novosibirsk meteorologist Anna Lapchik.
The event could be caused by several factors, suggested the press Secretary of the meteorologist Renad Yagudin. A day earlier on the territory of Western Siberia, in Khanty-Mansiysk, cyclone “Desmond”, the consequences of which extended to the southern regions of Siberia, also the reason could be “a powerful contrast frontal area”.
Via Novosibirsk passed a so-called front occlusion – complex structure of atmospheric fronts, in which the upper cold front overtakes a warm bottom and displaces it upwards. While there was an outflow of warm and humid air masses of Atlantic origin. In Novosibirsk a few days an unusually warm December weather, that day the temperature was +1 above climatic norm up to 12-16 degrees, said the spokesman.
All of these processes, he said, called ascending vertical motions in the atmosphere and massive Cumulus clouds, characteristic for the occurrence of thunderstorms. In addition, the influence of the big city. “Could be emissions of aerosols, particles, about which we have no idea, they could be some factor in the formation of electrical discharges,” added Yagudin.
Snow storm – a rare phenomenon of nature, when the peals of lightning accompanied by heavy snow, freezing rain or ice croup. Worldwide are registered annually only five or six such cases.