1. Weather facts
1. Domestic reality
Yesterday, there was heavy rainfall in parts of Sichuan, Guangdong, Hainan and other places: from 08:00 yesterday to 06:00 today, moderate to heavy rain occurred in southeastern Tibet, western Sichuan, western Guangdong, central and eastern Hainan Island, heavy rain in parts of southwestern Guangdong and eastern Hainan Island, and heavy rainstorms (100 to 176 mm) in Maoming, Guangdong, Zhanjiang, Tunchang and Qionghai in Hainan.
2. Foreign realities
Heavy precipitation occurred in the northern part of South America on the Korean Peninsula: the Indian Peninsula, the Ganges Plain, the Indochina Peninsula, Southeast Asia, the Korean Peninsula, West Siberia, Central Siberia, the Far East, Western Europe, Central Europe, Southern Europe, Central Canada and labrador Peninsula, Southern Alaska, eastern United States, Mexico, northern South America, Patagonian Plateau, southern Chile, southern Australia, New Zealand's North Island, South West Africa, North Central Africa, East Africa and other parts of the region have moderate to heavy rain, localized heavy rain or heavy rain , and accompanied by strong convective weather such as thunderstorms and strong winds.
Central Asia and the United States and other places of high temperature: the Arabian Peninsula, the Iranian plateau, the Mesopotamian plain, the Indus Plain, central and eastern Central Asia, North Africa, the western and southeastern coast of the United States, central Brazil, northwest Australia and other places The maximum temperature exceeds 35 °C, of which, some areas reach 38 ~ 42 °C, locally more than 44 °C.
Second, key weather forecasts
1. Domestic key weather
(1) There is rainfall in the northwest and southwest of South China
From September 8 to 10, there will be light to moderate rain in eastern Tibet, southern and eastern Qinghai, Sichuan, Guizhou, Yunnan, southern Gansu, Shaanxi, Shanxi and other places. In addition, there are small to moderate rain, local heavy rain or heavy rain in South China, accompanied by short-term heavy precipitation (20 to 50 mm/h, locally more than 60 mm/h).
(2) There is high temperature weather in the southern region
On September 8, there was a high temperature of 35 to 37 °C in parts of Jiangnan, Jianghan, western South China, and eastern Southwest China, and the local area could reach 38 °C or more. From the 9th to the 10th, the high temperature range and intensity in the above areas gradually decreased, and there were still 35 to 37 °C high temperature weather in some parts of Hubei, Hunan, Jiangxi and other places.
2. Key weather abroad
(1) There is strong precipitation in eastern Australia and other places in the Indochina Peninsula
In the next three days, there will be moderate to heavy rain, localized heavy rain or heavy rain in the Indian Peninsula, the Ganges Plain, the Indochina Peninsula, Southeast Asia, the Japanese Islands, West Siberia, Central Siberia, the Far East, Western Europe, Central Europe, Alaska, Western Canada, southeastern United States, Mexico, Northern South America, Eastern Australia, West Africa, Northern Central Africa, And Northern East Africa, etc.
(2) West Asia, North Africa, the western United States and other places continue to be high temperatures
In the next three days, there will be high temperatures of more than 35 °C in parts of West Asia, central and eastern Central Asia, North Africa, the western United States, northwest Australia, central Brazil and other places, and the maximum daily temperature in local areas such as West Asia and North Africa will exceed 42 °C.
3. Specific forecasts for the next three days
From 08:00 on September 8 to 08:00 on September 9, there was moderate to heavy rain in eastern Tibet, south-central Sichuan, Guangdong, Guangxi, most of Hainan Island and parts of central Shaanxi, of which there was heavy rain (50-70 mm) in parts of southwestern Guangxi, southwest coastal Guangdong, and northeastern Hainan Island. There will be 4-5 winds in parts of central and eastern Inner Mongolia and northeastern China, and there will be northeast winds of 6-7 and 8 gusts in the Taiwan Strait (see Figure 1).
Figure 1 National precipitation forecast map (08:00 on September 8 to 08:00 on September 9)
From 08:00 on September 9 to 08:00 on September 10, there was moderate to heavy rain in parts of southeastern Tibet, southern Sichuan, Yunnan, Guizhou, Guangxi and southern Shanxi, of which there was heavy rain (50 to 60 mm) in parts of southeastern Sichuan, southwestern Chongqing, and northwestern Guizhou. There will be 4-5 winds in parts of central and eastern Inner Mongolia, Hexi, Gansu and other places, and there will be northeast winds of 5-7 and 8 gusts in the Taiwan Strait (see Figure 2).
Figure 2 National precipitation forecast map (08:00 on September 9 to 08:00 on September 10)
From 08:00 on September 10 to 08:00 on September 11, there was moderate rain in parts of eastern Shanxi, Guizhou, Yunnan, western Guangxi and other places, of which there was heavy rain (25-40 mm) in parts of western Guizhou, north-central Yunnan, and western Guangxi. The Taiwan Strait will have northeasterly winds of magnitude 4 to 6 and gusts of 7 (see Figure 3).
Figure 3 National precipitation forecast map (08:00 on September 10 to 08:00 on September 11)
Fourth, influence and attention
1. The rainfall process in Sichuan, western Yunnan and eastern Tibet on the 8th and 9th, the risk of local geological disasters in Sichuan and Yunnan is high, and attention is paid to landslides, collapses and mudslides that may be triggered by rainfall;
2. The influence of high temperature weather in Hubei, Hunan, Jiangxi and other places, pay attention to the change trend and impact of meteorological drought in the Yangtze River Basin.
Production: Tang Jian Zhang Xidi Ma Jie Zhang Yongyong Issued: Zhang Fanghua
Source: Central Meteorological Observatory