The strongest winter cold air struck Beijing will open 40 hours of rain and snow mode 乃々果花

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The strongest winter cold air struck Beijing will open 40 hours and the mode of heavy air pollution, City Environmental Protection Bureau staff emissions inspection of diesel vehicles in beijing. Xinhua News Agency yesterday, reporters from the Municipal Meteorological Bureau, during the day by weak cold air, Beijing air pollution diffusion conditions gradually improved, persistent fog and haze weather disappear. The partial influence of South warm air and cold air, today to tomorrow, there will be an obvious rain turning snow weather process in most areas of North china. The weather is expected to continue for a long time, a large amount of accumulated rainfall. In the recently released cooling rate of up to 8 to 10 DEG C yesterday, the Beijing area affected by the low pressure to the convergence zone, near surface humidity increased significantly, the decrease of wind speed, weather conditions are not conducive to the diffusion of air pollutants, with moderate to severe haze. Night fog, visibility 1 ~ 4 km, less than 500 meters. Is the Municipal Meteorological Bureau, 19 night in Beijing area from the north to the South began to rain or sleet weather, most areas of 20 day will have sleet turn to snow (northern snow), 20 to 21 at night during the day in the snow, 21 days after dark snow weather gradually ended, Beijing will tonight open 40 hours of rain and snow mode. The process of area of Beijing greater part of accumulated rainfall of 8 to 15 mm, snowfall of up to 5 ~ 8 mm (snow) in northern and western mountainous areas, local Blizzard (10 mm); plain snow depth of 2 to 5 cm, the mountains up to 5 ~ 10 cm, there will be road icing. This means that in most parts of Beijing, the amount of snow in the process of snow, northern, western mountains, local snow, snow and ice will appear in most areas. In the rain and snow mode, a new round of cool wind is coming, the cooling rate of up to 8 to 10 DEG C. According to the forecast, 21-22 Beijing area will have 4 or so northerly winds, gusts up to 6, level 7. 21-24 day temperature will be significantly reduced, is expected to reduce the temperature range of 8 to 10 DEG C, 22-24 day maximum temperature of -3 to -1 DEG C, the lowest temperature of -9 to -10. 24 days after the slow temperature rise. This winter snow a week earlier reported last month in Western Beijing sea Tuo mountain, Buddha roof, Baihua Mountain has not snowed? Why not snow? According to meteorological experts in meteorology, meaning, the date refers to the first time in Beijing a larger range of snowfall dates, statistical period for the year in October 1st to second in May 31st. The definition for the first snow to meet one of the following two conditions: one is the city’s 20 artificial station more than 10 stations to have snow phenomenon. The second is the 5 city station (Chaoyang, Haidian, Fengtai, Shijingshan, the Observatory) were observed with snow phenomenon, or 5 city station in 3 or more stations to have snow phenomenon, and at least 1 stations over 0.1 mm of snow. Therefore, the small scope of the last Buddha Haituo mountain top, Baihua Mountain, snow, snow on the Beijing area did not reach the standard. According to statistics, Beijing this winter snow coming ahead of time about a week on average than in previous years, the first snow. Beijing perennial snow on November 29th, but the difference a year of great change. Since 1954, the earliest Beijing Ning相关的主题文章:

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