Beijing upgraded and issued a yellow warning of high temperature： exceeding 35℃ will last until the weekend.

　　Xinhua News Agency, Beijing, July 24th (Reporter Ni Yuanjin) The Beijing Early Warning Center and Beijing Meteorological Observatory upgraded and issued a yellow warning signal of high temperature at 17: 00 on the 24th. It is estimated that the daily maximum temperature in most parts of the city will be above 35℃ for three consecutive days from 25th to 27th.

　　According to reports, the high temperature warning signal is divided into four grades, from low to high, blue, yellow, orange and red. The threshold for the yellow warning of high temperature is that the maximum daily temperature rises above 39℃ or above 35℃ for three consecutive days. At 9: 00 on the 23rd, Beijing Early Warning Center and Beijing Meteorological Observatory issued high-temperature blue warning signals, and the daily maximum temperature from 23rd to 24th has reached above 35℃.

　　According to the latest forecast of Beijing Meteorological Observatory, the high temperature is accompanied by strong convective weather in the local area, so we need to take precautions. On the 24th, it will be cloudy and cloudy at night, with thunderstorms. On the 25th, it will be cloudy and sunny during the day, and there will be thunderstorms in the mountains in the afternoon. The sultry feeling will continue after precipitation.

　　According to the Meteorological Propaganda and Science Popularization Center of China Meteorological Bureau, July 23rd ushered in the "Great Summer" solar term among the 24 solar terms, which means that most parts of the country entered the hottest period of the year. At the same time, Northeast China, North China and other places entered the "main flood season" of "seven falls and eight rises", that is, the precipitation concentration period from late July to early August, which is prone to the precipitation process with concentrated rainfall and strong intensity.

　　According to reports, the applicable areas of "Seven Downs and Eight Ups" are North China, Huanghuai, Southeast China and parts of Shaanxi, Gansu and Ningxia on the Loess Plateau. The precipitation in this period is characterized by frequent and fierce rainfall and uneven rainfall distribution.

　　During the "Seven Downs and Eight Ups" period, the precipitation intensity in North China is high and there is a lot of rainfall, which is easy to cause water level rise in small and medium-sized rivers, urban waterlogging, mountain torrents, mudslides and basin floods.