China News Service, July 4th. According to the Central Meteorological Observatory website, yesterday, parts of western Sichuan Basin, western Yunnan, central and northwestern Hunan, central and northern Jiangxi, southeastern Hubei, and western Zhejiang fell to heavy rain, Meishan, Sichuan. , Lincang, Yunnan, Nanchang, Shangrao, and other local heavy rains (100-190 mm), the maximum hourly rainfall in the above areas is 50-111 mm; central Shaanxi, central and western Shanxi, southern and northeastern Hebei, western Liaoning, eastern Jilin, etc. Heavy rains and local heavy rains occurred in parts of the region, and thunderstorms and strong winds occurred in central Shaanxi and central and western Shanxi.

There is a new round of heavy rainfall in the southwestern region to the middle and lower reaches of the Yangtze River

　　From the 4th, due to the combined influence of the short wave trough and the low-altitude shear line, the southwestern region, Jianghan, Jianghuai, and northern Jiangnan will receive a new round of heavy rainfall. It is expected that there will be heavy rain in some of the above regions in the next three days. Heavy rain, accompanied by strong convective weather such as thunderstorms and strong winds.

　　It is estimated that from 8:00 on July 4 to 8:00 on 5th, southern Jiangsu, Shanghai, northern Zhejiang, southern Anhui, northwestern Jiangxi, eastern and southwestern Hubei, northwestern Hunan, central and southern Chongqing, northern Guizhou, northeastern Yunnan, Sichuan The southwestern basin and parts of southwestern Shanxi, southern Hebei, northern Henan, northern Shandong, eastern Yunnan, western Yunnan and other parts of the region have heavy rainstorms. Among them, there are local heavy rainstorms (100-150 mm) in southern Anhui and other places. Some of the above-mentioned areas are accompanied by short-term heavy precipitation (maximum hourly rainfall of 30-50 mm, and the local area can exceed 70 mm), and there are strong convective weather such as thunderstorms and strong winds. The Central Meteorological Observatory continued to issue rainstorm blue warnings at 06:00 on July 4 (see Figure 1).

Fig.1 Forecast map of the heavy rainfall areas in the country (08:00 on July 4-08:00 on July 5)

Convective weather in Northeast China and other places

　　In the next three days, there will be multiple showers or thunderstorms in North China and Northeast China. There will be moderate rain, partial heavy rain or heavy rain in some areas, accompanied by strong convective weather such as thunderstorms, strong winds or hail.

Specific forecasts for the next three days

　　From 08:00 on July 4th to 08:00 on 5th, southeastern Jianghan, southwestern Jianghuai, northern Jiangnan, Chongqing, southeastern Sichuan, western Yunnan, southern China, southern Heilongjiang, central Jilin, southern Qinghai, eastern Tibet, etc. During heavy rain, there are heavy rains in parts of northern Zhejiang, southern Anhui, eastern and southwestern Hubei, northwestern Hunan, southern Chongqing, southeastern Sichuan, northeastern Yunnan, southern Shaanxi, southern Hebei, northern Henan, etc. Heavy rain (100 ~ 150 mm) (see Figure 2).

Figure 2 National precipitation forecast map (from 08:00 on July 4th to 8:00 on July 5th)

　　From 08:00 on July 5th to 08:00 on 6th, the central and southern Jianghan, southern and western Jianghuai, northern Jiangnan, Chongqing, southern and western Sichuan, northern Guizhou, southern and western Yunnan, and central and northern northeast, eastern Hebei, northern Shandong, There are moderate to heavy rains in eastern Tibet and other regions. Among them, southern Jiangsu, central Anhui, eastern and southwestern Hubei, eastern and southern Chongqing have heavy rains, and local heavy rains (100 to 120 mm) (see Figure 3).

Figure 3 National precipitation forecast map (08:00 on July 5th-8:00 on July 6th)

　　From 08:00 on July 6 to 08:00 on July 7, central and southern Jianghan, most of Jianghuai, northern Jiangnan, Chongqing, southern and western Sichuan, southeastern and western Yunnan, central and eastern Heilongjiang, northern Jilin, northern and eastern Shanxi, and southeastern Tibet There are moderate to heavy rains in some places, including southern Jiangsu, northern Zhejiang, central and southern Anhui, southern and eastern Hubei, northwestern Hunan, southern Chongqing, southeastern Tibet, and other parts of the region have heavy rains and local heavy rains (100 ~ 150 mm ) (See Figure 4).

Figure 4 National precipitation forecast map (08:00 on July 6-08:00 on 7th)

Influence and attention

　　1. From 4 to 6 days, the process of heavy rainfall in the southwestern region to the middle and lower reaches of the Yangtze River, to prevent the superposition effect of rainfall and possible flash floods, geological disasters, small and medium river floods, etc.;

　　2. There are many rain showers or thunderstorms in North China, Northeast China, etc., to prevent the adverse effects of strong local rainfall, strong convective weather such as thunderstorms, strong winds, and hail.