It is expected that from 08:00 on August 11 to 08:00 on the 12th, parts of central Inner Mongolia, eastern northwest China, western Northeast China, central Huanghuai, central Jianghan, eastern Jianghuai, northeastern Jiangnan, and eastern Southwest China will have thunderstorms or hail of magnitude 8 or above. Among them, parts of central Inner Mongolia, eastern Gansu, central and eastern Henan, northern Anhui, western Jiangsu, and central Hubei will have thunderstorms of magnitude 10 or above, and the maximum wind can reach level 11 or higher, and the possibility of internal tornadoes is not ruled out; Central Mongolia, the eastern part of the northwest region, the northeastern region Some parts of western China, north-central North China, central and western Huanghuai, northern Jianghan, central Jianghuai, eastern Jiangnan, and southern southwest China will have short-term heavy precipitation with hourly rainfall greater than 20 mm. Among them, parts of southern Shandong, central and southern Henan, northern Anhui, and northern Hubei will have hourly rainfall greater than 50 mm, with a maximum of 80 mm or more.

It is expected that from 08:00 on August 11 to 08:00 on the 12th, parts of central Inner Mongolia, eastern northwest China, western Northeast China, central Huanghuai, central Jianghan, eastern Jianghuai, northeastern Jiangnan, and eastern Southwest China will have thunderstorms or hail of magnitude 8 or above. Among them, parts of central Inner Mongolia, eastern Gansu, central and eastern Henan, northern Anhui, western Jiangsu, and central Hubei will have thunderstorms of magnitude 10 or above, and the maximum wind can reach level 11 or higher, and the possibility of internal tornadoes is not ruled out; Central Mongolia, the eastern part of the northwest region, the northeastern region Some parts of western China, north-central North China, central and western Huanghuai, northern Jianghan, central Jianghuai, eastern Jiangnan, and southern southwest China will have short-term heavy precipitation with hourly rainfall greater than 20 mm. Among them, parts of southern Shandong, central and southern Henan, northern Anhui, and northern Hubei will have hourly rainfall greater than 50 mm, with a maximum of 80 mm or more.