China News Service, August 3. Xiao Chan, deputy director of the National Climate Center, said on the 3rd that the regional high temperature process continues to affect my country.
In July, the national average number of high temperature days (daily maximum temperature ≥35°C) was 5.6 days, which was 2 days more than the same period in normal years and the second most in the same period in history since 1961 (second only to 2017).
The China Meteorological Administration held a press conference in August on the 3rd to release the national weather and climate characteristics in July, the forecast of climate trends in August and suggestions for flood control and disaster reduction, and the Blue Book on Climate Change in China (2022), and answered questions from reporters.
When Xiao Chan introduced the national weather and climate characteristics and major climatic events in July, he pointed out that the most notable features of July's climate were low precipitation and high temperature.
According to statistics from the National Climate Center, the national average precipitation in July was 96.6 mm, 20.6% lower than the same period of the previous year, the second lowest in the same period in history since 1961; Tibet, Sichuan and Yunnan were all the lowest in the same period in history.
The national average temperature in July was 23.2°C, 1°C higher than the same period of the previous year, and the second highest in the same period since 1961; the daily maximum temperature of 245 national meteorological stations across the country exceeded the historical extreme value in July.
The main weather and climate characteristics are as follows:
First, the number of high-temperature days was the second highest in the same period in history, and the regional high-temperature process continued to affect my country.
In July, the national average number of high temperature days (daily maximum temperature ≥35°C) was 5.6 days, which was 2 days more than the same period in normal years and the second most in the same period in history since 1961 (second only to 2017).
The number of high temperature days in eastern Southwest China, Central China, East China and most of South China, as well as southwestern Xinjiang, was 5 to 10 days longer than the same period of the previous year, and more than 10 days in some areas.
Affected by the high temperature, electricity consumption in many southern places such as Zhejiang and Shanghai hit a record high, and many people in Zhejiang, Jiangsu, Sichuan and other places were diagnosed with heat stroke.
Second, the meteorological drought in the northwest has eased, and the meteorological drought in many places in the south has outcropped.
Since July, under the influence of high temperature, high temperature and little rainfall, moderate or above meteorological drought has occurred in the eastern and southern parts of Southwest China, the eastern part of Northwest China, and parts of central and eastern China.
As of July 31, moderate-to-severe meteorological droughts had emerged and developed in central and southern East China, northwestern and southeastern central China, parts of southwestern China, and western southern China. Meteorological droughts continued in central and eastern Inner Mongolia, Xinjiang, and central and eastern Tibet.
Third, there are many torrential rain processes and strong extremes in the northern region.
In July, there were 6 regional heavy rain events in my country, 4 of which occurred in the north, 1.4 more than the same period of the previous year, while the southern regional rainstorm process was 2.1 less than the same period of the normal year.
The daily precipitation of 30 national weather stations in the northern region exceeded the extreme value in July.
Fourth, there are few typhoons generated and landed, and the landing intensity of typhoon "Siamba" is strong.
In July, a total of 3 typhoons were generated in the Northwest Pacific Ocean and the South China Sea. Among them, the No. 3 typhoon "Siamba" landed in my country.
"CHABA" is the first typhoon to make landfall in my country this year, and it is also the fourth typhoon with the first landfall intensity since 1991.
Fifth, severe convective weather occurred frequently, and some areas were severely affected.
In July, parts of 15 provinces (autonomous regions and municipalities) were affected by strong convective weather such as thunder and lightning, strong winds and hail, among which Gansu, Henan, Hubei, Jiangsu and other places had a heavier impact.
In July, a total of 68,000 warning messages were issued nationwide, a year-on-year decrease of 1.45%.
Among them, the number of high temperature red warnings has increased the most, with a year-on-year increase of 753%.
Zhejiang, Sichuan, and Shaanxi ranked the top three in terms of high temperature red warnings. Among them, Sichuan issued a high temperature red warning for 11 consecutive days (6th-16th), and Zhejiang issued a high temperature red warning for 10 consecutive days (20th-29th).