On the afternoon of June 29, it can be seen from the high-definition visible satellite cloud map of Fengyun-4 that with the eastward movement of the westerly wind belt fluctuations, the cyclone system in the central and eastern parts of the mainland has been formed today - a large area of thick clouds has accumulated in the eastern sea area of the mainland, which is the extratropical cyclone system that is roaring eastward, and the Meiyu belt in the southern part of the mainland has also changed from east-west to southwest-northeast under the pull of the extratropical cyclone.
1. The national rainstorm warning has risen to the highest level
The monitoring data of the Central Meteorological Observatory shows that yesterday, heavy rainfall occurred in many places in the south, and meteorological monitoring showed that heavy rain or heavy rain occurred in some areas of central Jiangsu, central Anhui, southeastern Henan, eastern Hubei, northern Hunan, and northeast Guizhou, and extremely heavy rain in Lu'an, Henan, Xinyang, Hubei, and Wuhan, Hubei.
In fact, the Central Meteorological Observatory issued a red warning for heavy rain again on June 29, which is the highest level of heavy rain warning, and it is also the second red warning for heavy rain in this year's rainy season, showing that the intensity of this year's rainy season is not trivial.
The rainy season in 2024 seems to be particularly dramatic. Monitoring data show that from 08:00 on June 28 to 16:00 on the 29th, heavy rain to heavy rain occurred in central Jiangsu, central Anhui, southeastern Henan, eastern and southern Hubei, northern Hunan, northeast Guizhou, Nujiang in Yunnan, Fangchenggang in Guangxi and other places, including Lu'an, Anhui, Xinyang, Henan, Huanggang, Wuhan, Xiantao and other places. The cumulative rainfall in these areas has reached 100~250 mm, and the local rainfall has reached 260~378 mm.
Second, the rainy season is strengthening again!
This monitoring data shows that under the combined influence of the southwest monsoon and the subtropical high, the Meiyu belt in the middle and lower reaches of the Yangtze River has strengthened again. In particular, the influx of hot and humid airflows, driven by the subtropical high, has brought continuous rainfall to these areas. This phenomenon is like a "dark cloud that cannot be dispersed", which makes the whole rainy season seem extraordinarily long and wet.
The phenomenon of short-term heavy precipitation is also very prominent, with the maximum hourly rainfall reaching more than 70 mm, which is enough to make people "soaked to the bones". This phenomenon of heavy precipitation often brings a large amount of rainfall in a short period of time, resulting in disasters such as urban waterlogging and river flooding, which has a great impact on people's daily life.
According to the red warning of heavy rain from the Central Meteorological Observatory, from 20 o'clock on June 29 to 20 o'clock on the 30th, there will be heavy rain in parts of southeastern Guizhou, northern Guangxi, southwestern and northern Hunan, eastern Hubei, northern Jiangxi, southern Anhui, northwest Zhejiang, southern Jiangsu, Shanghai and other places. Among them, there will be heavy rain in parts of southern Anhui, northeast and southwest Hunan, northern Jiangxi, northern Zhejiang, southeastern Guizhou, northeast Guangxi and other places, while southwest Anhui and southwestern Hunan will have extremely heavy rain (250~260 mm). These areas will not only face short-term heavy precipitation (the maximum hourly rainfall is 20~50 mm, and locally it can exceed 70 mm), but also may be accompanied by strong convective weather such as thunderstorms and strong winds.
The intensity of this year's rainy season has indeed increased compared to previous years. Looking at the data, the rainfall in June has exceeded the average of the past five years. This is mainly due to the strong southwest monsoon this year and the wide range of the subtropical high, which has significantly increased the rainfall in the middle and lower reaches of the Yangtze River.
According to the current meteorological model, the southwest monsoon and the subtropical high will remain strong in the next few days, which means that the rainfall in the middle and lower reaches of the Yangtze River will continue. The rainy season in these areas is likely to continue for some time. For example, judging from the rainfall forecast around July 1, a large area of heavy rain - heavy rain will extend from Anhui, Jiangsu to Hubei, Jiangxi, Hunan, Guangxi and other places, which means that the plum rain belt will continue to maintain in many places in the south.
In summary, this year's rainy season has not only come violently, but also lasted for a long time. Residents in many places in the Yangtze River basin have deeply felt this "feast of rain". Due to the extremely heavy rain in some areas, and there are severe weather such as short-term heavy rainfall and thunderstorms and strong winds, we hope that everyone will be vigilant to ensure the safety of themselves and their families.