The northern "Salon" affects 12 provinces and cities. Is this the most widespread and strongest event in the past 10 years?

On March 15, we looked at the Fengyun satellite image, and it looked like a "salon" appeared over northern my country, causing a powerful "sandstorm" that was raging in the northern region. All were affected by yellow sand. The sand and dust warning from the my country Climate Center has also been upgraded. Among them, 12 provinces and cities in the north have experienced large-scale yellow sand, including Beijing-Tianjin-Hebei, Inner Mongolia, Shaanxi, Shanxi and other places. Of course, the most serious ones may be in central urban areas such as Yinchuan and Hohhot. , obviously a case of strong sandstorm.

This sandstorm is very rare. It is the most intense sandstorm weather process that our country has encountered in the past 10 years. The scope of the sandstorm is also the widest in the past 10 years. So everyone should green the environment and build sand and dust protection forests, which will be of great help to the defense of sand and dust and protect the ecological environment of the earth. The frequency of such climate phenomena may also be much lower. This is the "ecosystem" "Chain effect", which is one of the reasons why our country has increased its efforts to improve forest greening, in order to make our living environment more environmentally friendly.

Of course, in addition to the dust phenomenon, the cold air activity in the north is now the main thing. With the rapid entry of stronger cold air, a new round of large-scale cooling has clearly appeared in our country. Northeast, North China, Northwest and other places have all experienced temperature drops. Among them, Qinghai, Gansu, Inner Mongolia and other places have the strongest temperature drops of 6 to 10 degrees, and some areas can exceed 12 degrees. In the future, the influence of cold air will continue, and the degree of cooling will increase. In some areas, including Huanghuai, Jianghuai and other places in my country, the temperature can reach 12 degrees, and the maximum temperature in the northeast can exceed 14 degrees.

So the intensity of this temperature is already comparable to a "cold wave" climate in some areas. March 15th is also the strongest period of the original cold air impact in my country. Large-scale rain and snow formed in the central and eastern regions. The 15th is also the strongest moment. Among them, northern Xinjiang, northeastern Inner Mongolia, and northern Northeast China will all experience moderate to severe cold air. It snowed heavily, and there were also blizzards in some places. The strongest is 15 mm. Therefore, the snowfall intensity is very strong, and most of Heilongjiang, Jilin and other places are also dominated by sleet and snow, and the main rainfall is in the Yangtze River Basin.

On March 15, there were heavy rains in local areas of Jianghuai, Jianghan, Jiangnan and other places, mainly distributed in Anhui, Jiangsu, Jiangxi and other places, with the maximum rainfall of 60 mm. By March 16, it will move to the Yangtze River Delta area and eventually disappear. This round of rainfall has perfectly avoided Guangdong, Fujian, Yunnan and other major areas in the south, so although the area is large, the areas without rainfall are still obvious. This is the characteristics of this round of rainfall. At the same time, everyone should not put away their cotton-padded clothes for the time being. There will be another wave of stronger cold air. On March 19, this wave of cold air will be stronger.

When the cold air appeared on March 19, the cold air flow had actually entered the Yangtze River Basin in my country. By March 20, it was stronger. There was a famous temperature drop in the northern part of South China. On the 21st, At this time, Guangdong, Fujian and other places have to cool down. Although the intensity is not great, it is still a temperature fluctuation. The "remaining power" of the cold air still covers most of South my country. At this time, the subtropical high pressure in the south is not strong, so the temperature drops. It became a trend. Under the influence of this wave of strong cold air, there is still a wide range of rain and snow in the central and eastern regions.

So the climate this spring is still quite complicated. It is really too strong. When it is warm, there are waves of stronger cold air, but when it is cold, it is too hot. This also shows that this year's climate is complex and changeable, and the climate in the following summer may also be an unusual pattern. This is the state of two waves of strong cold air, which can be said to be stronger than the last.