China News Service, Beijing, November 22 (Wei Xianghui) After a short "interval" of rainfall, southern my country will usher in rainy weather again this week.
The Meteorological Department reminded that although continuous precipitation is beneficial to alleviate the drought, the water level of small and medium-sized rivers will rise, and relevant departments need to pay attention to secondary disasters that may be caused by local heavy rainfall.
Data map: Photo by He Penglei
Multiple rounds of rain expected in the south this week
Last week, there were frequent rains in the southern region. On the 20th, the rainfall in various places basically weakened and stopped.
After a short "intermittent period", on the 21st, the rain in the south began to increase again, and there will be heavy rain or heavy rain in parts of Guangdong, Hainan and other places.
According to China Weather Network, in late November (21-30), the cumulative precipitation in Jianghuai, Jianghan, Jiangnan, and South China was 20-40 millimeters, of which 50-40 millimeters fell in the eastern and southern parts of Jiangnan, and the eastern and northern parts of South China. 80 mm, local 100 mm or more; the precipitation in the above-mentioned areas is 40% to 80% higher than that of the same period of normal years, and the local area is more than 1 times higher.
Specifically, on the 21st and 22nd, there were light to moderate rains and local heavy rains in parts of the eastern part of Southwest China, the southeastern part of Northwest China, Jianghan, southern Huanghuai, Jianghuai, northern Jiangnan, and eastern South China.
From the 23rd to the 25th, there were moderate to heavy rains and local heavy rains in the central, eastern and southern parts of South China.
From the 27th to the 29th, there were moderate to heavy rains and local heavy rains in parts of Jianghan, Jianghuai, Jiangnan, and northern South China.
Data map: Yu Jingshe
Drought eased in many places
Under the influence of rainy weather, the drought in some parts of the south will also be further alleviated.
From the 15th to the 18th, the rainfall in the south covered an area of about 1.79 million square kilometers, and the drought in Jiangxi, Hunan, Zhejiang, Fujian, Anhui and other places was eased.
At 18:00 on the 16th, the Central Meteorological Observatory lifted the yellow drought warning, and the 90-day drought warning came to an end.
According to the "China Meteorological News" report, from the 14th to the 17th, the meteorological departments of the southern provinces seized favorable weather conditions and continued to carry out joint operations of aircraft and ground artificial rainfall enhancement.
On the 19th, the Central Meteorological Observatory released data. From the 15th to the 18th, Guangxi, Anhui, Jiangxi, and Hunan carried out a total of 16 aircraft precipitation operations, with a cumulative flight time of 60 hours and 48 minutes; Organized 1005 ground rainfall enhancement operations.
It is estimated that the area affected by this rainfall increase is about 800,000 square kilometers, and the cumulative increase in rainfall is about 400 million cubic meters.
At present, the drought and high forest fire danger in parts of Jiangnan and South China have eased to a certain extent.
Wang Fei, deputy director of the Effect Evaluation Office of the Weather Modification Center of the China Meteorological Administration, said that under the combined effect of natural precipitation and artificial rainfall enhancement, the area of drought has been significantly reduced, and areas with high forest fire risk levels have been fully downgraded, and the forest area covered by higher risk levels has changed from the largest 205,000 square kilometers dropped to 14,800 square kilometers.
Li Sen, deputy director of the Ecological and Agricultural Meteorological Office of the National Meteorological Center, said that the southern region needs to seize the favorable opportunity to do a good job of water storage and water conservation. Hunan, Jiangxi and other places are recommended to do a good job of continuous drought relief, and Hunan and Guizhou should pay attention to preventing periodic low temperatures.
Data map: Photo by Yu Haiyang
Temperatures in most parts of the country are still higher than normal
According to China Weather Network, on the 20th, Beijing, Tianjin, Hebei, Henan, Shandong and other places were filled with heavy fog. Red warning signals for heavy fog were issued in many places, and many highways were closed due to low visibility.
On the 21st and 22nd, due to the joint influence of precipitation and cold air, the atmospheric diffusion conditions in most parts of the country will improve, and the fog and haze will weaken and dissipate.
In terms of cold air, this morning, due to the influence of cold air, northeastern Inner Mongolia, Heilongjiang, and western Jilin experienced a 4-8°C drop in temperature, and local drops in northeastern Inner Mongolia and northwestern Heilongjiang reached 10-20°C.
Today, the impact of cold air on Inner Mongolia and Northeast China will come to an end, but the temperature will hardly rise significantly in the future, and the temperature will be low.
In the coming week, the cold air will be weak, and the temperature in most parts of the country will still be higher than normal in the same period of time. Among them, some areas in western and southern North China, Huanghuai, Jianghuai, Jianghan, Jiangnan, South China and Guizhou will be 3-5℃ higher .
The situation is expected to change after the 26th.
The meteorological department reminded that the public should pay attention to the nowcasting and early warning, add clothes in time according to the weather changes, and do a good job of preventing cold and keeping warm.
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