Central Meteorological Observatory: Heavy rainfall and strong convection will occur in southern Jiangnan, central and eastern South China

　　China News Service, April 6 (Xinhua) According to the website of the Central Meteorological Observatory, heavy to heavy rains occurred in parts of Jiangxi, Hunan, Guangdong, and Guangxi yesterday, with local heavy rains. It is expected that there will still be heavy rainfall in southern Jiangnan, northern South China and other places in the next three days. Pay attention to the superposition effect and the possible urban flooding, flash floods, geological disasters, etc. caused by short-term heavy rainfall. Pay attention to the persistent rain and snow weather in the central and eastern parts of the Qinghai-Tibet Plateau. The impact of Sichuan-Tibet Railway construction and material transportation.

There are heavy rainfall and strong convection in southern Jiangnan, central and eastern South China

　　From the 6th to the 7th, there were heavy to heavy rains in parts of southern Jiangnan, central and eastern parts of South China, and local heavy rains, accompanied by strong convective weather such as short-term heavy precipitation, thunderstorms, strong winds, or hail. It is expected that from 08:00 on April 6 to 08:00 on April 7, there will be heavy to heavy rains in parts of southern Hunan, southern Jiangxi, western Fujian, and central and northern Guangdong. Among them, there will be heavy rains (100-180 mm) in some areas of central Guangdong and other places. ). (see picture 1). Some areas in eastern Guangxi, western Guangxi and other places will have thunderstorms or hailstorms with level 8 or above; in addition, some areas in southern Hunan, southern Jiangxi, southeastern Yunnan, eastern and northwest Guangxi, Guangdong and other places will have hourly rainfall greater than 20 mm of short-term heavy rainfall weather; among which, the local maximum hourly rainfall in eastern Guangxi and western Guangxi is greater than 50 mm. The main impact period of strong convection is from day to night today (see Figure 2). The Central Meteorological Observatory will continue to issue yellow rainstorm warnings and severe convective weather blue warnings at 06:00 on April 6.

Figure 1 Forecast map of heavy rainfall areas across the country (08:00 on April 6 to 08:00 on April 7)

Figure 2 National thunderstorm, wind or hail warning

There is persistent rain and snow in the eastern part of the Qinghai-Tibet Plateau

　　It is expected that from the 6th to the 9th, persistent rain and snow will occur in the central and eastern parts of the Qinghai-Tibet Plateau, with moderate to heavy snow (sleet) and localized heavy snowfall in eastern Tibet, eastern and southern Qinghai, and the western Sichuan Plateau. Big blizzard. The accumulated snowfall in the above-mentioned areas is 8-15 millimeters, some areas in eastern Tibet and the central and northern Sichuan Plateau can reach 20-35 millimeters, and some areas in eastern Tibet can exceed 50 millimeters.

Detailed forecast for the next three days

　　From 08:00 on April 6 to 08:00 on April 7, there was light snow or sleet in parts of northwest Heilongjiang, the southern Xinjiang Basin, northeastern and western Tibet, the central part of the northwest region, and the northern part of the Western Sichuan Plateau. Among them, eastern Qinghai and There was moderate to heavy snowfall in some areas in southern China and southern Gansu, and local heavy snowfall (10-12 mm) in northeastern Tibet and other places. There are moderate to heavy rains in parts of southeastern Tibet, central Hunan, central-eastern and southern Jiangnan, and central-northern and southern South China. Among them, there are heavy rains or heavy rains in parts of southern Hunan, southern Jiangxi, northwest Fujian, and central-northern Guangdong. (100~180mm). Some areas in southeastern Inner Mongolia, western Jilin, and northern Xinjiang have winds of magnitude 5 to 7. Among them, some areas in northeastern Inner Mongolia and northwest Heilongjiang have winds of magnitude 7 to 8 (see Figure 3).

Figure 3 National precipitation forecast map (08:00 on April 6 to 08:00 on April 7)

　　From 08:00 on April 7 to 08:00 on April 8, there was light snow or sleet in parts of northern Heilongjiang, Xinjiang's Ili Valley and Nanjiang Basin, northern and southern Tibet, southern and western Qinghai, and northern Western Sichuan Plateau. There were moderate to heavy rains in parts of southeastern Tibet, central-eastern and southern Jiangnan, and northern South China. Among them, there were heavy rains (50-70 mm) in parts of southern Jiangxi, Fujian, and northern Guangdong. There are level 4 to 6 winds in some areas in central and eastern Inner Mongolia, central Jilin, northern and southern Xinjiang, western Qinghai, central Gansu, northern Sichuan Plateau, central Sichuan Basin, southwestern Guizhou, and southeastern Guangxi. Among them, northwest Heilongjiang There are winds of magnitude 6 to 7 in parts of central China and western Hubei (see Figure 4), including the Bohai Sea, Bohai Strait, most of the Yellow Sea, most of the East China Sea, the Taiwan Strait, the ocean east of Taiwan, the Bashi Strait, the northeastern and central and western parts of the South China Sea There will be winds of magnitude 5 to 7 and gusts of magnitude 8 in the Beibu Gulf. Among them, the Bohai Sea, most of the East China Sea, the Taiwan Strait, and the ocean east of Taiwan will have northeasterly to northerly winds of magnitude 8 to 9 and gusts of magnitude 9 to 10.

Figure 4 National precipitation forecast map (08:00 on April 7 to 08:00 on April 8)

　　From 08:00 on April 8 to 08:00 on April 9, there was light snow or sleet in parts of the southern Xinjiang Basin, northern and southern Tibet, southern and western Qinghai, and northern Sichuan Plateau. There will be light to moderate rain in some areas in northwest Inner Mongolia, eastern Tibet, northern Shaanxi, most of Hebei, central and northern North China, most of Jianghuai, most of Jiangnan, northern and eastern Southwest China, most of South China, and Taiwan Island. Among them, There were heavy rains (25-40 mm) in some areas in southeastern Tibet and other places. There are winds of magnitude 5 to 7 in some areas such as northwest Inner Mongolia and northern Qinghai (see Figure 5). The Bohai Sea, Bohai Strait, most of the Yellow Sea, most of the East China Sea, the Taiwan Strait, the ocean east of Taiwan, the Bashi Strait, the northeastern part of the South China Sea and There will be winds of magnitude 5 to 7 and gusts of magnitude 8 in the central and western parts of the country and the Beibu Gulf. Among them, the Bohai Sea, most of the East China Sea, the Taiwan Strait, and the ocean east of Taiwan will have winds of magnitude 8 to 9 and gusts of magnitude 9 to 10 from the northeast to the north. wind.

Figure 5 National precipitation forecast map (08:00 on April 8 to 08:00 on April 9)