China News Agency, Beijing, September 24 (Reporter Chen Su) North China and Huanghuai have just experienced a round of rainy weather during the Mid-Autumn Festival holiday, and now a new round of rain has begun.
The reporter learned from the China Meteorological Administration on the 24th that from the 24th to the 26th, there was a heavy precipitation process from west to east in the eastern part of Northwest China, the Sichuan Basin, the central and southern parts of North China, and Huanghuai. Areas and areas with significant precipitation have a high degree of overlap, so precautions should be taken.
The Central Meteorological Observatory forecasted that from the 23rd to the 26th, there will be a strong precipitation process from west to east in the eastern part of Northwest China, the Sichuan Basin, central and southern North China, and Huanghuai.
There were heavy to heavy rains in southeastern Gansu, most of Shaanxi, central and northern Sichuan Basin, central and southern Shanxi, central and southern Hebei, western and southern Beijing, northern Henan, and central and western Shandong, and local heavy rains.
The chief forecaster of the Central Meteorological Observatory Fang Chong told reporters that the combination of the eastward movement of the plateau trough and the northwestern Pacific subtropical high ("subtropical high") caused this round of rainfall to occur. On the 25th, some areas were accompanied by strong convective weather such as short-term heavy rainfall and thunderstorms.
"An autumn rain and another cool." This round of rain brought a slight drop in temperature to North China, Huanghuai and Shaanxi, and the temperature drop ranged from 2°C to 4°C.
During this round of rainfall, rainfall from the Sichuan Basin to North China and Huanghuai was relatively strong, and there was a high degree of overlap with the previous heavy rainfall areas and areas with significant precipitation. It is expected that a single day rainfall of more than 100 mm will occur in some areas such as southern North China. Torrential rain.
Fang Chong said that Gansu, Shaanxi, Shanxi, Hebei, Henan and other places need to be alert to disasters such as mountain floods, geological disasters, floods in small and medium rivers, and urban and rural waterlogging that may be caused by continuous rainfall or strong local rainfall.
Monitoring data shows that autumn rains in North China are obviously on the high side this year.
As of September 22, the precipitation from the central-eastern part of North China to the Huanghuai area was more than 25% higher than the annual average, and more than 50% more in some areas.
"It is rare for North China to rain so frequently in autumn." Fang Chong said that due to the strong "subtropical high" and the relatively stable position, the warm and humid air flow from its western and northern edges and the cold air brought by the eastward movement of the plateau trough They intersect in the Huanghuai area of North China, causing multiple heavy rainfall processes in the Huanghuai area of North China.
In the next period of time, the "subtropical high" will remain strong and stable. There will still be rainfall in North China and Huanghuai, while some areas of Jiangnan, South China, and Jianghan will maintain high temperatures around 35°C.
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