It is estimated that from December 31 to January 6, 2011, a new cold air will affect most of China's regions. The northern region will have a temperature drop of 4-8 °C, and the local cooling rate will exceed 10 °C; the southern part of the region will cool down 3 ~ 5 ° C. During the period, China will have a large range of rain and snow from west to east, from December 31 to January 2, 2011, northwestern Xinjiang and along the Tianshan area, southwestern and northeastern Tibet, southeastern Qinghai, and southern Gansu. There are heavy snow in some areas such as the northern part of the western Sichuan Plateau, and there are heavy snow in the local area. During the New Year's Day (1st to 3rd), there will be small to moderate rain (snow) or shacks in the eastern part of the northwestern part, western part of North China and most of the south. Snow, there are moderate to heavy snow in some areas, and there is freezing rain in parts of Guizhou.
Although the cooling rate caused by this cold air process is not large, due to the low base temperature in the early stage, most of China will continue to have low temperature. Relevant regions and departments need to prevent low temperature and rain and snow weather from adversely affecting transportation, urban operation, agricultural production and mass life.
First, the new cold air will affect most of China
It is estimated that from December 31, 2010, a cold air will begin to affect northern Xinjiang. From December 31 to January 2, 2011, most of Xinjiang will cool down by 4-8 °C, and the northwestern part of Xinjiang will cool down by 10-12 °C. It is accompanied by a northerly wind of 5-6, and the wind power in the mountain pass reaches 8-9. From January 1 to 2, 2011, the temperature of most parts of the Qinghai-Tibet Plateau will drop by 6-8 °C, and the local area will reach 10 °C. 5~7 northerly winds; on the 3rd, cold air will gradually move eastward to affect western Inner Mongolia and northern Gansu; from 4th to 6th, cold air will move eastward and southward to affect most of the central and eastern regions of China, and the northern region will cool down 4~8°C. The local temperature is lowered by more than 10 °C, and the temperature is reduced by 3 to 5 °C in most parts of the south. From December 31 to January 5, 2011, the minimum temperature in the eastern part of the southwestern region, Jianghan, Jianghuai, and Jiangnan is about 2 to 2 °C below zero, and road icing will occur in some areas.
Affected by cold air and warm and humid airflow, from December 31, 2010 to January 2, 2011, there were small to medium snows in northern Xinjiang, with heavy snow or blizzard in the northwest and along the Tianshan Mountains. Snow (rain) process, in which parts of the southwestern and northeastern parts of Tibet, southeastern Qinghai, southern Gansu, and northern Sichuan Plateau have heavy snow, local snowstorms, and heavy rain or sleet in parts of southeastern Tibet; From 1st to 3rd, there are small to moderate rains (snow) or sleet in the eastern part of the northwestern part, the eastern part of the southwestern part of China, the western part of North China, the western part of Huanghuai, the western part of the Yangtze River, the south of the Yangtze River, and the south of the south of China. There are freezing rains in some areas of Guizhou (with photos); from 4th to 5th, there are small to moderate rains (snow) or sleet in the southwestern part of the southwest, Jianghan, Jiangnan and western South China.
Second, attention and recommendations
Since December 28, the strong cold air that has affected China has brought significant winds and cooling to most of the northern regions. The cold air of this stock will continue to affect the Jianghuai, Jiangnan and South China. From the 31st, a new cold air has begun to affect China. Due to the recent cold air activities, high winds, rain, snow and cold weather will adversely affect transportation, urban operation, agriculture and animal husbandry, disease prevention and control, coal, electricity and oil supply. It is recommended that relevant localities and departments do a good job. Prevent work.
First, it is necessary to strengthen the prevention of adverse effects of rain and snow. During rain and snow, the visibility is low, the road is slippery, and snow and ice will appear in some areas. The traffic management department needs to do a good job of prevention; the power and communication departments also need to strengthen the inspection and maintenance of power supply lines and communication facilities.
Second, it is necessary to guard against the adverse effects of low temperature and windy weather. Low temperature weather can easily lead to colds, cardiovascular and cerebrovascular diseases, respiratory diseases and other diseases. The health department needs to prepare for emergency work in advance; Xinjiang Shankou area and the northern part of the Qinghai-Tibet Plateau need to guard against high wind hazards.
The third is to do a good job in cold protection of agriculture and animal husbandry. Facility agriculture should take appropriate measures such as heat preservation and warming; animal husbandry areas should do a good job of forage storage and cold protection and warmth; in the south, measures such as cultivating and covering soil, covering straw, and smoking should be adopted to prevent low-temperature freezing damage.
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