China News Service, March 20. According to the website of the Central Meteorological Observatory on the 20th, due to the combined influence of cold and warm air, it is expected that a large-scale precipitation process will occur in the southern region from the 20th to the 22nd. , There are heavy rains and local heavy rains in parts of central and southern Anhui, southern Jiangsu, Shanghai, and northern Zhejiang.

Heavy rainfall in Chongqing, Hubei, Henan, Anhui, Jiangsu, Zhejiang and Shanghai

　　Affected by the combination of cold and warm air, it is expected that from the 20th to the 22nd, a large-scale precipitation process will occur in the southern region. There are moderate to heavy rains in the east and other places. Among them, there are heavy rains and local heavy rains in parts of northern Chongqing, southeastern Henan, Hubei, central and southern Anhui, southern Jiangsu, Shanghai, and northern Zhejiang. Some of the above areas are accompanied by short-term strong rains. Precipitation, local strong convective weather such as small hail.

Cold air affects southern regions

　　Affected by the combination of cold air and rainfall, from the 20th to the 23rd, the eastern part of the Southwest, Jianghuai, Jiangnan and South China will experience a temperature drop of 4 to 8 °C from north to south. Among them, the Sichuan Basin, Guizhou, southern Hunan, southern Jiangxi and Guangxi In some parts of the central and northern parts of the country, the cooling rate can reach 10 °C, and the above-mentioned areas are accompanied by northerly winds of magnitude 4 to 5 and gusts of magnitude 6 to 8.

Specific forecast for the next three days

　　From 08:00 on March 20 to 08:00 on March 21, there were light to moderate snow in parts of Xinjiang along the Tianshan Mountains and mountainous areas in the western part of southern Xinjiang. Among them, there were heavy snow (10-15 mm) in parts of Xinjiang's Ili River Valley and other places. .

There are moderate to heavy rains in parts of the southeastern Northwest China, western Huanghuai, most of Jianghuai, Jianghan, northern Jiangnan, and northeastern Southwest China. Among them, southern Henan, central and southern Anhui, southern Jiangsu, most of Shanghai, northern Hubei and There were heavy rains and local heavy rains (100-120 mm) in parts of the west, northern Zhejiang, and northeastern Chongqing.

There are winds of magnitude 4 to 6 in parts of central Inner Mongolia, Xinjiang along the Tianshan Mountains, southern Xinjiang Basin, southern Tibet, and southern Jiangsu (see Figure 1).

Figure 1 National precipitation forecast map (08:00 on March 20 - 08:00 on March 21)

　　From 08:00 on March 21 to 08:00 on March 22, there were light to moderate snowfalls in parts of Xinjiang along the Tianshan Mountains, eastern Tibet, northern and western Qinghai, among which, there were heavy snows in parts of Xinjiang along the Tianshan Mountains and eastern Tibet ( 5 to 7 mm).

There were moderate to heavy rains in parts of western Huanghuai, most of Jianghuai, Jianghan, northern and eastern Jiangnan, northeastern Chongqing, and northern South China. Among them, there were heavy rains in parts of southern Anhui, central and northern Zhejiang, and northern and western Guangxi (50 ~80 mm).

There are winds of magnitude 4 to 6 in parts of northern Tibet, northern and western Qinghai, and northern Sichuan Plateau (see Figure 2).

Figure 2 National precipitation forecast map (08:00 on March 21 - 08:00 on March 22)

　　From 08:00 on March 22 to 08:00 on March 23, there were light to moderate snow or sleet in parts of central Inner Mongolia, northern Liaoning, northwestern Xinjiang, and northern North China. Among them, central Inner Mongolia, northwestern Xinjiang, northern Hebei, etc. There is heavy snow in some areas.

There are moderate to heavy rains in parts of the central, eastern and southern parts of Jiangnan, and most of South China. Among them, there are heavy rains or heavy rains (100-120 mm) in parts of southeastern Fujian, central Guangdong, and northwestern China.

There are 4-5 winds in parts of central Anhui (see Figure 3).

Figure 3 National precipitation forecast map (08:00 on March 22 - 08:00 on March 23)