Super long! Violence! Break the extreme! Big data interpretation of Meiyu rainy season in 2020

category:Global
 Super long! Violence! Break the extreme! Big data interpretation of Meiyu rainy season in 2020


The super long plum rain season is not over yet

The first Meiyu in 2020 is earlier than that of the two countries. According to the statistics of the National Climate Center, the south of the Yangtze River, the middle and lower reaches of the Yangtze River and the Yangtze Huaihe River entered the plum blossom successively on June 1, June 9 and June 10, respectively, 7, 5 and 11 days earlier than usual.

At present, Meiyu period is 40 days, which is 10 days longer than normal.

According to the situation of each province,

Zhejiang

As early as May 29, the plum rain season was announced, 12 days earlier than usual, until the plum blossom was announced locally on July 18,

The whole 50 day plum rain season is 20 days more than usual

At present, it ranks first in the number of Meiyu days in 2020

u3002

Meiyu is not over yet, but the number of days is far beyond the year

u3002

Jiangsu, Hubei and Shanghai also experienced 42-43 days of super long Meiyu period,

Shanghai

Nanjing, Jiangsu

All of them are the longest rainy season since this century

u3002

Since the beginning of Meiyu this year, the Meiyu district has experienced a total of eight rounds of precipitation, which gives us the impression that the rain has been falling, and the rainstorm is one after another. From June 2 to July 11, the central meteorological station continuously issued rainstorm warning,

The duration is the longest since the establishment of meteorological disaster warning information release system.

The daily rainfall of 13 counties and cities broke the historical extreme value

The plum rain in the south of the Yangtze River gives everyone the impression that it is gentle and gentle. However, this year, the plum rain is extremely violent, not only with more rain but also with greater intensity.

Since June, the Meiyu belt in China has been mainly concentrated in the south of the Yangtze River, the middle and lower reaches of the Yangtze River and the Yangtze Huaihe River. As of July 21,

The rainfall in Anhui, Hubei and Chongqing was the highest in the same period of history

Guizhou, Jiangsu and Shanghai ranked second, while Jiangxi and Zhejiang ranked fourth.

At the same time, rainfall extremes are very prominent in southern China,

The daily precipitation of 108 stations reached the monitoring standard of extreme events

Among them, the daily rainfall in 13 counties and cities such as Jinzhai in Anhui Province and Ganyu in Jiangsu Province has broken through the local historical extreme value. The maximum daily rainfall of 538 mm occurred in Lianhua Mountain of Jiangxi Province on July 7, nearly a years rainfall in Beijing.

China Weather Network has counted the rainfall in Meiyu district from June 10 to July 20 this year. With the most rainfall

Wuhan

In 30 days, the rainfall reached 862.7mm; Nanchang and Hefei followed closely, with more than 800mm of rainfall, and Nanchangs daily rainfall also exceeded the local historical extreme value in July; the rainfall in Shanghai and Nanjing in the past 30 days was more than 600mm, which was amazing.

Flood discharge of Chaojing reservoir

Violent plum makes the flood control situation extremely severe this year

It is the largest in the same period since 1961

The rainfall in Taihu Lake Basin is 1.1 times more than that in the same period in history; the rainfall in Huaihe River Basin is 43% more than that in the same period in history, which is the sixth largest in history. The water levels of the Yangtze River, Poyang Lake, Dongting Lake, Taihu Lake and Huaihe River exceeded the warning level successively,

Red warning for flood in many places

u3002

(function(){( window.slotbydup=window .slotbydup||[]).push({id:u5811557,container:ssp_ 5811557, async:true }In the next three days (July 24-26), there will be a heavy rainfall process from Sichuan basin to the middle and lower reaches of the Yangtze River. Affected by this, there will be an obvious flood process in the upper reaches of the Yangtze River, with the main stream of the middle and lower reaches and the two lakes maintaining high water levels; the water level of some reaches of the Huaihe River will rise again and maintain an over alarm. After this round of rainfall, the plum rainy season is coming to an end, but the flood control should not be relaxed. Source: Li Ang, editor in charge of China Weather Network_ NBJS10230

The Central Meteorological Station predicts that there will be another heavy rainfall process from Sichuan basin to the middle and lower reaches of the Yangtze River in the next three days (July 24-26). Affected by it,

There will be an obvious flood process in the upper reaches of the Yangtze River

The main stream of the middle and lower reaches and the two lakes maintain high water level; the water level of some reaches of the Huaihe River rises again and keeps over alarm. After this round of rainfall, the plum rainy season is coming to an end, but the flood control should not be relaxed.