Figure 1 Precipitation forecast map for the southern region (08:00, 08:00, 08:00, January 16, 2011)
It is expected that from January 16 to 21, there will be an obvious rain and snow weather from the west to the east in the eastern part of the Qinghai-Tibet Plateau, the eastern part of the southwestern region, the south of the Yangtze River, and the south of the Yangtze River. The cumulative precipitation is generally 3 to 15 mm, and in some areas there are 20 to 35 mm, 50 to 70 mm in the local area of ​​northwestern and eastern Yunnan. Among them, from the 17th to the 19th, Chongqing, Guizhou, Hubei and Jiangnan will have small to medium snow, Hunan and Jiangxi have medium to heavy snow, local blizzard (10 to 15 mm); Guizhou, northeast Yunnan, Chongqing There will be freezing rain in parts of the southeast, western and southern Hunan, northwestern Guangxi, and central Jiangxi. Compared with the freezing process of snow and snow in early January, the rain and snow weather, the range and intensity of freezing rain will be significantly larger.
From the 16th to the 21st, there will be a clear rain and snow weather in the southern region. The low temperature and freezing effect will be large and wide.
It is expected that from January 16 to 21, there will be an obvious rain and snow weather from the west to the east in the eastern part of the Qinghai-Tibet Plateau, the eastern part of the southwestern region, the south of the Yangtze River, and the south of the Yangtze River. The above-mentioned areas will have small to moderate rain and snow, and the process will have precipitation. There are 3 to 15 millimeters, of which some areas of southeastern Tibet, Yunnan, central Jiangxi, and central and southern Hunan have 20 to 35 millimeters, and the central and eastern parts of Yunnan have 50 to 70 millimeters (Fig. 1). Hubei, Chongqing, Guizhou, Jiangnan and other places have small to medium snow, parts of Hunan, Jiangxi and other places to heavy snow, local blizzard (10 ~ 15 mm), the main precipitation period is 17 to 19 days. Compared with the freezing and snow freezing process in early January, the rain and snow weather, the range of freezing rain and the intensity of the eastern and southern parts of the southwestern region will be significantly larger, and the minimum temperature is equivalent.
Frozen rain forecast:
With the rain and snow weather, it is expected that from the 16th to the 21st, the southern frozen range will gradually expand and the intensity will be strengthened. Among them, there are some areas in Guizhou, northeastern Yunnan, southeastern Chongqing, western and southern Hunan, northwestern Guangxi, and central Jiangxi. Frozen rain.
Low temperature forecast:
Affected by cold air and rain and snow weather, it is expected that there will be continuous low temperature in Guizhou, Chongqing, Jiangnan and South China during the process, and the temperature will be 3~5 °C lower than normal. The minimum daily temperature in Guizhou, Chongqing, and Jiangnan is minus 5 to 0 °C, and most of South China is 2 to 8 °C; the highest daily temperature in Guizhou, southeastern Chongqing, and western Hunan is minus 2 to 2 °C; other parts of Jiangnan are 2 to 6 °C; 4~11°C in most parts of South China.
Second, attention and recommendations
As the Spring Festival travels, passenger transportation, coal, electricity, oil transportation and living materials transportation are gradually increasing, and traffic pressure is increasing. All parts of the south should pay close attention to the freezing weather of low temperature, snow and snow, especially in Guizhou, Hunan, Jiangxi and other places to strengthen the prevention of the adverse effects of freezing rain and rain and snow.
First, strengthen roads, railways, and airports to remove ice and snow, and do a good job in traffic guidance. Relevant localities need to do a good job in the deployment of traffic management emergency forces and equipment for melting ice and deicing materials in advance, and strengthen inspection and maintenance work on roads, railways and airports. It is necessary to take measures to scientifically disperse vehicles and increase the capacity allocation to ensure the safe and smooth transportation of passenger transportation, urban and rural living materials and emergency relief materials.
The second is to strengthen the inspection and de-icing of power grids and communication facilities. The power and communication departments should rationally allocate personnel and materials, improve emergency plans, and strengthen inspection and maintenance of power and communication equipment and facilities to ensure smooth power supply and communication.
The third is to organize a good emergency work for low temperature freezing rain and snow weather. Low temperature freezing rain and snow weather is likely to cause frequent colds, respiratory tracts, cardiovascular diseases, etc., and the number of people injured in rain and snow is increasing. Relevant areas need to organize relevant medical and health emergency work.
The fourth is to strengthen farmland management and mitigate the effects of low temperature freeze damage. Strengthen the management of winter crops such as rapeseed, vegetables and forest fruits, and use straw to cover or cultivate soil to prevent crops and fruit trees from being frozen. Do a good job in the maintenance and reinforcement of greenhouses, greenhouses and other agricultural facilities, and take measures to increase temperature and freeze.
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