How long is the high temperature this year?

Extreme high temperature weather occurred in southern China this year, and 40℃+ high temperature occurred in Jiangsu, Zhejiang, Shanghai and Chongqing. The continuous high temperature has a great influence on crops and human beings. Then why is it so hot this summer? When will the extreme weather end? The latest official response is as follows:

1. Why is it so hot this summer?

This summer is hotter than usual. For example, the high temperature in Shanghai leveled off 149 years ago. In fact, not only Shanghai, but also the whole southern region has experienced extremely hot weather. Take Changsha, where Bian Xiao is located, as an example. It is already 389 degrees a week, and it is expected to exceed 40 degrees this year. In such hot weather, it is difficult to sleep at night without turning on the air conditioner. Walking outdoors during the day will make you sweat like taking a cold bath. The weather is so hot this year that experts and the Central Meteorological Observatory have given detailed reasons:

1. The reason why it is so hot this summer is global warming.

According to the chief forecaster of the Central Meteorological Observatory, high-temperature heat waves in the northern hemisphere have become increasingly frequent in summer since the beginning of the 2 1 century, and global warming is the root cause of high-temperature heat waves. Global warming is the climate background of frequent high-temperature heat waves in the northern hemisphere, and abnormal atmospheric circulation is the direct cause of frequent high-temperature heat waves in many places around the world since June.

It's too hot this summer. Reason 2: La Nina continues.

Meteorologists pointed out that the continuous La Ni? a event since June provided important conditions for the occurrence and development of high temperature in South China, especially in July, the development of the mid-latitude warm and high pressure belt accelerated, and a large range of high temperature weather appeared. According to statistical analysis, the western Pacific subtropical high tends to be northward in the summer following most La Nina events.

2. When will the extreme high temperature weather end in 2022?

In 2022, the extremely hot weather will last for about one month, and it is expected to end in August 10. According to the latest response of the National Climate Center, it is predicted that the temperature in most parts of China will be higher than normal from July 27th to August 1 1 day, including western Inner Mongolia, Shanghai, Jiangsu, northern Zhejiang, Anhui, northwestern Jiangxi, southern Shandong, most of Henan, Hubei and northern Hunan (Yueyang and Changde). ), Chongqing, eastern Sichuan, northern Guizhou, Tibet, southwestern Shaanxi and northern Xinjiang will be high 1. There are too many high temperature days in some of the above areas, and there may be a long-lasting high temperature weather process. It is necessary to guard against the adverse effects of high temperature and heat wave on people's production and life and power supply.

Generally speaking, the high temperature in the summer of 2022 is related to global warming and persistent La Nina events, while the extremely high temperature weather will last for about one month and will not end until the beginning of August.