Is there mildew in Shanghai?

Meiyu period in Shanghai is characterized by heavy rainfall, high precipitation intensity and high temperature days. During the Meiyu period, the average temperature in the city was 27.8℃, which was the hottest Meiyu since 2007! After the plum blossom, the temperature rose and there were thunderstorms in the afternoon. The highest temperature in the next ten days will be around 37℃. The average amount of plum rains in the city is 348.7 mm, nearly 50% more than normal.

The amount of plum rain in Xujiahui Station is 3 14.9mm, which is nearly 20% more than the annual amount of plum rain (262.5mm). Uneven rainfall distribution, precipitation is mainly concentrated in the north. Baoshan Station (428.9 mm) with the most plum rains is 1.6 times that of Huinan Station (266.6 mm) with the least rainfall in Pudong New Area. During the rainy season, Xujiahui Station has five precipitation processes.

Plum production standard

Plum blossom, also known as "broken plum", refers to the day when the rainy season ends. In the weather forecast, the date of plum blossom is mostly determined according to the weather conditions. In summer, the rain belt in the Jianghuai basin obviously moves northward, and the time of not returning is set as the time of plum blossom. The meteorological demarcation of plum blossom is determined according to the background of large-scale weather circulation situation, the geographical distribution characteristics of weather system, the geographical distribution position of precipitation and the changes of meteorological elements.

When the Meiyu front and its rain belt move northward and reach the Yellow River basin stably, and the Jianghuai area is controlled by the western Pacific subtropical high, the Meiyu in the Jianghuai area ends and blooms. Meiyu period is a meteorological concept, a specific weather process and the product of seasonal adjustment of atmospheric circulation in East Asia.