China News Service, May 23. According to the website of the Central Meteorological Observatory, due to the southward movement of low-level jets and low-level shear systems, the southern rain belt will gradually weaken to the south. From May 23 to 24, Guizhou, Guangxi, northern Jiangnan, etc. There was still heavy rainfall in the land; on the 23rd, affected by the cold air moving eastward, parts of North China, Northeast China, Huanghuai and other places had northerly winds of magnitude 4 to 6 and gusts of magnitude 7 to 8 or more.
Data map: Citizens travel in the rain.
Photo by Zhang Bin
Heavy rain in Zhejiang, Fujian, Anhui, Jiangxi and other places
From 08:00 yesterday to 06:00 today, heavy rain or heavy rain occurred in parts of southwestern Zhejiang, northwestern Fujian, southern Anhui, northwestern Jiangxi, southeastern Hubei, northern Hunan, central and northeastern Guizhou, and western Sichuan Basin. Huangshan, Anhui, Local heavy rains (100-185 mm) in Jingdezhen, Jiangxi and Nanchang, the maximum hourly rainfall in the above areas is 40-73 mm; showers or thunderstorms occur in parts of central and northern Shaanxi, northwestern Shanxi, northwestern Hebei, and Beijing. Accompanied by short-term strong winds of magnitude 8-9, local rainfall in Zhangjiakou, Hebei, Shijingshan and Shunyi in Beijing is 50-78 mm.
Southern rain belt weakens southern pressure
Affected by the southward movement of low-level jets and low-level shear systems, the southern rain belt will gradually weaken southern pressure. From May 23 to 24, there will still be strong rainfall in Guizhou, Guangxi, and northern Jiangnan, and some of the above areas will have heavy rains. , Local heavy rain; some of the above-mentioned areas will also be accompanied by short-term heavy rainfall, local strong convective weather such as thunderstorms, gales and hail.
It is estimated that from 08:00 on May 23 to 08:00 on May 24, there will be heavy rain in parts of southwest and east Hunan, central Jiangxi, southwest Zhejiang, northwest Fujian, southeast Guizhou, southeast Yunnan, and northwest Guangxi. Among them, there were heavy rainstorms (100-120 mm) in the central and northern parts of Guangxi and other places.
Some of the above-mentioned areas are accompanied by short-term heavy precipitation (the maximum hourly rainfall is 20-40 mm, and the local area can exceed 50 mm), and there are strong convective weather such as thunderstorms, gales or hail (see Figure 1).
The Central Meteorological Observatory continued to issue a blue rainstorm warning at 06:00 on May 23.
Figure 1 Forecast map of heavy rainfall areas across the country (from 08:00 on May 23 to 08:00 on May 24)
There will be strong winds in North and Northeast China and other places to cool down
On the 23rd, affected by the cold air moving eastward, parts of North China, Northeast China, Huanghuai and other places experienced northerly winds of magnitude 4 to 6 and gusts of magnitude 7 to 8 or more; the temperature in the above-mentioned areas generally dropped by 6 to 8℃, and eastern Inner Mongolia , The western part of Northeast China and other places, the local maximum temperature drop can reach more than 10 ℃; Xinjiang’s southern Xinjiang basin, northwest Qinghai, central and western Inner Mongolia and the south-eastern part of the east, northern Shaanxi, northwestern Shanxi, northwestern Hebei and other places have blowing sand or Floating dust weather.
Specific forecast for the next three days
From 08:00 on May 23 to 08:00 on May 24, there were moderate to heavy rains in most parts of southern Jiangnan, southeastern Yunnan, western and northern southern China, northeastern Heilongjiang, eastern Liaoning and other places. Among them, southeastern Yunnan and north-central Guangxi There are heavy rains or heavy rains (100 ~ 120 mm) in other places.
There are winds of force 4 to 6 in parts of Xinjiang’s southern Xinjiang basin, central and eastern Inner Mongolia, northern China, and western Northeast China. Among them, wind gusts can reach over 8 in parts of central and eastern Inner Mongolia.
(See Figure 2).
Figure 2 National precipitation forecast map (from 08:00 on May 23 to 08:00 on May 24)
From 08:00 on May 24 to 08:00 on May 25, there were moderate to heavy rains in parts of southern Qinghai, eastern Jiangnan, southern Southwestern, and central Guangdong. Among them, there were heavy rains (50-60 mm) in southeastern Fujian and other places. ).
There are 4 to 6 winds in parts of Xinjiang’s southern Xinjiang basin, central and eastern Inner Mongolia, and northern China (see Figure 3).
Figure 3 National precipitation forecast map (from 08:00 on May 24th to 08:00 on May 25th)
From 08:00 on May 25th to 08:00 on the 26th, there were light to moderate rains in most of Jianghuai, Jianghan, Jiangnan, Southwest China, southern China, central and eastern Inner Mongolia, eastern and northern Northeast, and eastern Tibet. Among them, central Chongqing, Heavy rain (25 to 35 mm) occurred in parts of southwestern Yunnan and other places.
Winds of force 4 to 6 occur in parts of central and western Inner Mongolia, northern Xinjiang, along the Tianshan Mountains and northern Qinghai. Among them, there are winds of force 6 to 7 in parts of central and western Inner Mongolia (see Figure 4).
Figure 4 National precipitation forecast map (from 08:00 on May 25th to 08:00 on 26th)
Influence and concern
The rainfall process from Guizhou to the northern part of Jiangnan, pay attention to the adverse effects of heavy rainfall and strong local convective weather;
Meteorological services for the earthquake-stricken areas in Yangbi, Qinghai and Maduo;
The weather process of strong wind cooling in North China, Northeast China, Huanghuai and other places, and sand and dust weather in northern China and its impact.