The cause of this year's rainstorm

1, this year's extreme climate events occurred against the background of global warming. Observations show that global warming leads to frequent extreme weather and climate events, and China is in a climate change sensitive area. In recent 60 years, the frequency of rainstorm has obviously increased, and the rainstorm in the Yangtze River basin occurred under such a background.

2. The subtropical high is relatively strong this year, coupled with frequent cold air activities and the convergence of cold and warm air, resulting in continuous heavy precipitation in the Yangtze River basin this year.

Rainfall forecast in 2022:

1, from May to September, 2022, China paid equal attention to drought and flood, and the rainfall in the northern region was generally high. First of all, according to the overall news released by the National Climate Center, from May to September this year, the overall meteorological conditions in China were at a general deviation level.

On the one hand, drought and flood are equally important; On the other hand, there will be a trend that regional and staged droughts and floods will be significantly strengthened.

Extreme weather and climate events are generally frequent, and rainy areas will be concentrated in northern China. Moreover, the number of typhoons landing in China this year will be at a higher level than in previous years. In previous years, the normal level was around typhoon level 7, and this year it may be around 9~ 1 1.

According to the detailed weather warning, the rainy areas in China will be located in the northeast, north China, central and eastern Inner Mongolia, north China, southwest China and northwest China from June to August this summer.

However, there is less precipitation in southern East China, southern Central China, eastern Southwest China and western Northwest China, and there will be periodic droughts. Everyone must be prepared for these situations in advance.

From February to September, the rainfall in the middle and lower reaches of the Yellow River basin, Haihe River basin, Liaohe River basin and Nenjiang River basin is in a state of excessive rainfall.

In the guidance issued this time, the National Climate Center pointed out that the overall precipitation in the middle and lower reaches of the Yellow River basin, Haihe River basin, Liaohe River basin and Nenjiang River basin in China will be significantly higher this summer.

Moreover, if there is more rainstorm, there will be more serious floods. It is worth noting that the precipitation in the middle reaches of the Yangtze River basin is less than normal, while the precipitation in the Taihu Lake basin is more than normal.

3. The temperature in most parts of central and eastern China is on the high side this year, and there will be staged high temperatures in East China and Central China. Judging from the temperature situation, this summer, the temperature in the southern part of Northeast China, the central, eastern and southern parts of North China, East China, Central China, Northwest China, Southeast China and Southwest China will also be higher than the same period last year.

It is particularly noteworthy that there may be staged high temperature weather in Central China and East China, while the temperature in other parts of the country is close to the same period last year.

For the northeast region, the main grain producing area, it is unlikely that the temperature will continue to be low this year. Based on the above meteorological warning news, from May to September this year, the overall meteorological situation is more severe, and farmers should also pay attention.