Beijing time on January 20, 2022 at 10:38:56, the sun longitude 300 °, the arrival of the great cold festival, the great cold as the last of the twenty-four solar terms, announcing that the mainland is indeed in the middle of winter. But for this year, the coldest period may not have yet arrived, from the Monitoring Data of the National Climate Center of the China Meteorological Administration, since December into winter, the temperature in many parts of the mainland from December 1 to January 19 has shown a high trend, especially in northern Xinjiang, North China, Huanghuai and other places, it is quite high, so that many people have complained before: Where did the good cold winter go?
However, on the day of the great cold festival, the weather situation on the mainland has indeed begun to change - at 12:00 noon on January 20, from the high-definition visible light satellite cloud map of the mainland Fengyun No. 4, the clear sky area south of the Great Wall of the mainland has shrunk significantly today, which is the water vapor is beginning to contact with cold air, and the largest range of rain and snow weather this year will be launched.
For example, on the morning of January 20, many parts of Beijing in the north of the mainland were overcast, and snowflakes fell in the clouds, which was the first snow in Beijing in 2022. According to photos taken by netizens, among the fluttering snowflakes, snow has begun to appear on the ground in Beijing, which is part of this widespread rain and snow weather.
The Central Meteorological Observatory's forecast believes that from January 20 to January 20, the mainland will set off a wide range of rain and snow weather from Inner Mongolia, Hebei, Shanxi, Shaanxi, to Yunnan, Guangxi, Hunan, And Guizhou in the south. Among them, the rain and snow dividing line is roughly located in the Qinling-Huaihe line, which means that the north is basically dominated by snow, and the south is basically dominated by rain.
For the south, it has been raining frequently since January, and today's rain can be said to be commonplace, but for the north, widespread snowfall can be described as a "rare visitor" since January. According to the forecast of the Central Meteorological Observatory, from January 20 to January 21, southern Gansu, central and eastern Ningxia, most of Shaanxi, central and western Henan, Shanxi, western Hebei, central Inner Mongolia, and western Beijing will generally drift snow, among which Shaanxi Henan may become the center of snowfall, and moderate to heavy snow will occur in many places.
Of course, under the sweep of rain and snow on a large scale, not only the south is back to wet and cold, but the temperature in many places in the north is below 0 degrees at noon today, and it is also a more uncomfortable gloomy and cold state in the clouds and snowfall.
Since January this year, the northern part of the mainland has less rain and snow, the recent weather is relatively calm, Henan and other places continue to be disturbed by smog, such a large range of rain and snow, not only will clean the air, but also supplement precipitation, improve the recent situation of rain and snow in many places in the north, therefore, it is indeed not a bad thing.
From the current point of view, in this wave of large-scale rain and snow weather that began on January 20, the core area of the snowfall area will continue to be aligned with the first line of Henan, Shaanxi, Shanxi, Hubei, and has reported snow like plum rain for 4-6 consecutive days, and we have given it a name called "Meixue". For example, Henan Luanchuan, forecasts show that from today to this Sunday, snow will continue to fall, and next week there are signs of continuous snowfall, although snowfall is not a bad thing, but continuous snowfall may also bring some trouble, we must pay attention to cold and warm, go out to pay attention to safety.
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