Is it when it is rainy again when we are familiar with West China Autumn Rain?

Cover reporter Wu Bingqing

After Bai Lu, a cool autumn rain and a long -term autumn rain, the autumn clothes have appeared.

In the autumn, Sichuan people have a "old acquaintance" -waxing autumn rain. Is the rainy rain today, is it the familiar Huaxi autumn rain? What are the characteristics of "the hottest in history", the West China Autumn Rain who arrived in the summer?

The autumn rain in Sichuan this year has not yet begun or postponed until mid -September

West China Autumn Rain is a special weather phenomenon in the autumn of Huaxi region in my country. The Huaxi region includes Hubei, Hunan, Chongqing, Sichuan, Guizhou, Shaanxi, Ningxia, and 6 provinces 1 autonomous region of 6 provinces.

The autumn rain in Sichuan began and ended on August 30 and November 1st, respectively. However, Qiu Yu did not all take time and walk time.

How to judge Qiu Yu's arrival? This is standard.

According to the Chinese rainy season monitoring indicators, in normal years, from August 21, the rainfall of the daily rainfall in the West China monitoring area greater than or equal to 50%of the West China region has become a autumn rain day. If a certain area appears 5 consecutive autumn rain days, or only a non -autumn rain day appears in 2 to 4 days in 5 consecutive days, it marks that the West China Autumn Rain in the area has begun. The first autumn rain day is the area in the area. The beginning date of Huaxi Qiuyu.

The reporter learned from the Sichuan Provincial Climate Center that, according to this standard, at present, the West China autumn rain in Sichuan has not yet begun.

"The beginning of this year's autumn rain has become a set compared to the same period of the same year." The staff of the Sichuan Provincial Climate Center introduced that the autumn rain in Sichuan this year is expected to begin in mid -September.

Autumn rain in Sichuan this year may be unevenly distributed in these places.

In summer, Sichuan experienced a one -month high temperature incident. This time, the high temperature and the comprehensive intensity ranked first in history. Originally in August of the main flood season, Sichuan did not have a regional storm.

After the dry and hot summer, will the West China autumn rain come back in the autumn of the autumn?

According to the Sichuan Provincial Climate Center, the strength of the autumn rain in Sichuan this year is slightly weaker than the same period of the same year. The end period is close to the same period of the same year, and the space distribution of more precipitation is unevenly distributed.

The main influence of Sichuan autumn rain this year is the northwest of the basin, southwest of the basin, and central basin. The average precipitation in these areas is about 10%more than the annual autumn rain. %.

Do not worry too much about autumn rain. Most of the Sichuan Basin will occur during the autumn rain period. Therefore, this year's autumn rain is particularly conducive to alleviating the drought in the northwestern part of the basin, southwestern basin, and the central part of the basin.

However, although Qiuyu is not as "fierce" as the rainstorm in summer, it may also bring geological disasters.

The reporter learned from the Sichuan Provincial Climate Center that there is a continuous precipitation process or staged water drop during the rainy period of this year, which can easily induce geological disasters such as mountain floods, landslides, mudslides, and collapse. "Especially in the early stages of drought, the water content of the soil is low, and the risk of precipitation induced geological disasters is higher, and prevention needs to be strengthened. Pay close attention to the weather in the western Sichuan Plateau and Pen Zhou Mountains, and avoid geological disasters such as landslides caused by autumn rain." Sichuan Provincial Climate Center staff said.

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