Original title: A strong cold wave is coming, and the minimum temperature of - 16 ℃ tomorrow will last until next Friday, when the orange warning for road icing is issued
On the night of December 14, this round of snowfall came to an end, and the snow potential gradually decreased and tended to end. As of 22:00 on December 14, the average snowfall in the city and the urban area reached the heavy snowfall level, and the Fenghuang Ridge in Haidian reached the blizzard level. The strong cold wave hit on December 15, and the minimum temperature in the capital on Saturday will be "bottoming out" - 16 ℃. The cold weather will last until December 22, so everyone should pay attention to cold prevention.
This round of obvious snowfall started from the morning of December 13, with heavy snow and fine snow flying intermittently, and it continued until the night of December 14. Lei Lei, the chief forecaster of the municipal meteorological observatory, said that the snowfall on the morning of December 14 slightly weakened, but from the afternoon, the snowfall intensity increased again, and by the evening, the snowfall volume was very considerable.
According to the statistical data of the meteorological department, from 5:00 on December 13 to 22:00 on December 14, the average snowfall in the city was 8.0mm, and the average snowfall in the urban area was 8.1mm, both reaching the heavy snowfall level; The largest snowfall in the urban area and the whole city occurred in the Phoenix Ridge of Haidian, with a total snowfall of 13.7 mm, reaching the level of blizzard; The maximum hourly snowfall intensity is 3.0mm/h (from 11:00 to 12:00 on the 13th) in Xiangying Village, Yanqing. In terms of snow cover, the depth of snow cover in most areas of the city is 8 to 12 cm.
At 22:20 p.m. on December 14, the municipal meteorological station lifted the orange warning signal of snowstorm. According to the forecast, snow will end in most areas of the plain on the morning of December 15, and there will be some sporadic snow falling in the mountain areas. After the snow, a strong cold wave came. Lei Lei introduced that with the strong cold air moving eastward and southward, there were 3 and 4 northerly winds from December 15 to 16 in Beijing, with gusts of about 7, and the temperature dropped significantly. On December 16, the highest temperature in the daytime dropped to about - 7 ℃, and the lowest temperature at night dropped to about - 16 ℃. At 16:30 on December 12, the municipal meteorological observatory issued the blue warning signal of cold wave in advance. According to the current forecast, it is expected that there will be continuous low temperature weather in Beijing from December 15 to 22. The temperature of the whole day will be below the freezing point. The maximum temperature in the daytime is - 7 ℃ to - 1 ℃, and the minimum temperature at night is - 16 ℃ to - 12 ℃. Everyone must pay attention to cold prevention.
It is reported that the maximum number of consecutive low temperature days in which the minimum temperature in Beijing was below - 10 ℃ in December was 11 days, which occurred in December 1952. The extreme minimum temperature of the Southern Suburb Observatory in December was - 18.3 ℃, which occurred in 1966.
In response to this cold wave and strong wind cooling weather, at 19:30 on December 14, the municipal meteorological station upgraded and issued an orange warning signal for road icing, and simultaneously issued a yellow warning signal for continuous low temperature and a blue warning signal for strong wind. (Luo Qianwen)
