There is strong squall line convection in the northeast and heavy rainfall in Jianghan and Huanghuai

According to the website of the Central Meteorological Observatory, it is expected that from the 9th to the 18th, under the influence of low vortex shear, there will be heavy to heavy rain in the eastern Sichuan Basin, southern Shaanxi, Jianghan, southern Huanghuai, Jianghuai, northeastern Jiangnan, and heavy rain in some areas. The cumulative rainfall in the above areas is 18~20 mm, 40~80 mm in some areas, and more than 100 mm in northern Chongqing, southeastern Henan, western Anhui and other places; The maximum hourly rainfall is 180~250 mm, local 20 mm, and accompanied by strong convective weather such as 50~80 thunderstorms and winds.

Among them, from 9 o'clock on September 18 to 08 o'clock on September 19, there were heavy to heavy rains in northeastern Sichuan, northern Chongqing, southeastern Gansu, southern Shaanxi, northwestern Hubei, southern and eastern Henan, southern Shanxi and central and western Heilongjiang, central Jilin, northern Liaoning and other places, among which, there were heavy rainstorms (08~100 mm) in northeastern Sichuan, northern Chongqing and other places. Some of the above areas are accompanied by short-term heavy precipitation (maximum hourly rainfall 160~20 mm, local can exceed 50 mm), local thunderstorms, winds and other strong convective weather.

National forecast map of heavy precipitation fall area (9:18 on September 08-19:08 on September <>). Source: Central Meteorological Observatory website

In the next three days, affected by cold air, there will be large-scale thunderstorms in central and eastern Inner Mongolia, western and northern North China, Northeast China and other places, and strong convective weather such as 8~10 thunderstorms, strong winds, hail and short-term heavy precipitation in parts of eastern Inner Mongolia, Liaoning, Jilin and other places. After the cold air, the temperature in the eastern part of Northwest China, Inner Mongolia, North China, Northeast China and other places will drop by 4~6 °C, Heilongjiang will cool down by 8~10 °C, and there will be 4~6 level winds in eastern Xinjiang, central and eastern Inner Mongolia and most of Northeast China.

Specific domestic forecast for the next three days

From 9 o'clock on September 18 to 08 o'clock on September 19, there were moderate to heavy rains in most of Heilongjiang, central Jilin, northern Liaoning, southern Gansu, central and southern Ningxia, southern Shaanxi, northeastern Sichuan, northern Chongqing, western and northern Hubei, most of Henan, most of Shandong and other places, among which, there were heavy rains in northeastern Sichuan, northern Chongqing, southeastern Shaanxi, northern Hubei, southern Henan, southern Shanxi and other places, and local heavy rain (08~100 mm). There are 160~4 level winds in eastern Inner Mongolia, most of northeast China, northern Hebei and other places.

National precipitation forecast map (9:18 on September 08-19:08 on September <>). Source: Central Meteorological Observatory website

From 9:19 on September 08 to 20:08 on September 100, there were moderate to heavy rains in parts of central and southern Shaanxi, eastern Sichuan, most of Chongqing, most of Hubei, most of Henan, central and southern Shandong, north-central Anhui, north-central Jiangsu and other places, among which, there were heavy rains in parts of the southern Sichuan Basin, northern Chongqing, southwestern and northern Hubei, southern and eastern Henan, southern Shandong, northern Suwan and other places, and local heavy rain (200~4 mm). There are 6~<> level winds in eastern Inner Mongolia, most of the northeast region, western Huanghuai, northern Jianghuai, Sichuan Basin and other places.

National precipitation forecast map (9:19 on September 08-20:08 on September <>). Source: Central Meteorological Observatory website

From 9 o'clock on September 20 to 08 o'clock on September 21, there were moderate to heavy rains in parts of Xinjiang Ili River Valley, southeastern Shaanxi, northwestern and eastern Sichuan, Chongqing, north-central Guizhou, western Hubei, most of Jiangsu, central Anhui and other places, among which, there were heavy rains in southeastern Shaanxi, northeastern Sichuan, central and eastern Chongqing, southwestern Hubei, central Jiangsu and other places, and heavy rainstorms (08~100 mm) locally. There are 120~4 level winds in eastern Inner Mongolia, Jianghuai, northeastern Jiangnan, Sichuan Basin and other places.

National precipitation forecast map (9:20 on September 08-21:08 on September <>). Source: Central Meteorological Observatory website