Affected by strong cold air, the winds will cool down in most of the central and eastern regions of China in the next two days: temperatures in the southeastern part of the northwest, central and southern China, and most of the south of Huanghuai will fall by 6-10 °C. The temperature drop in parts of Huai's Department, the majority of Jianghuai, and the northeastern part of the Yangtze River can reach 12 °C; North China, Huanghuai, Jianghuai, and Jiangnan East will be accompanied by 5~7 northerly winds.

The cooling effect caused by this cold air process is obvious. Compared with the previous period, the minimum temperature in some areas will reach the lowest value in winter, and the wind is large, and the body temperature is lower.

On the night of December 30, the temperature in central and northwestern Inner Mongolia, western North China, Huanghuai and other places will drop to the lowest since winter, and the lowest temperature in central Inner Mongolia will reach minus 30 °C to minus 25 °C, which is still lower than the previous extreme minimum temperature. It is 3~4°C lower; the lowest temperature in the central and northern Shaanxi and the north-central Shanxi will reach minus 24°C to minus 20°C, which is 2~3°C lower than the extreme minimum temperature in the previous period; the minimum temperature in most parts of Huanghuai will reach minus 7°C. ~ minus 11 ° C; the lowest temperature in the western part of Huanghuai is slightly lower than the previous period.

From the night of December 31 to the early morning of January 1, 2011, the temperature in the Jianghuai and the northeastern part of the Yangtze River will drop to the lowest value since the beginning of winter. The lowest temperature of 0 °C will be south to the south of the south of the Yangtze River to the northern part of South China. The temperature is generally between minus 7 ° C and minus 5 ° C; the lowest temperature in the northeastern part of the Yangtze River is minus 6 ° C to minus 2 ° C, which is 1 to 2 ° C lower than the previous minimum temperature; the lowest temperature in the central and western parts of the south and south of South China is minus 2 ° C ~ 2 ° C.

In the southeastern region, it is necessary to actively do the cold and antifreeze work of fruits and vegetables to prevent low temperature hazards:

1. Overwintering crops such as vegetables, potatoes and sweet potatoes can be covered with straw and plastic film, and heat-producing phosphorus and potassium fertilizers. If conditions permit, they should be protected by cold and anti-freezing with plastic and small sheds.

2, fruit trees can be high-cultivation soil, film, straw covered tree crown, the trunk is bandaged, white, covered with film or straw in the fruit tree tray, smoked in the orchard, added hot phosphorus and potassium fertilizer to prevent cold and freeze. Bananas, alfalfa, etc. can be used to prevent freezing damage by bagging and protecting fruits. Pineapple can bind the whole leaf bundle to avoid direct damage to the young leaves. Citrus orchards, especially young trees, use straw to wrap the trunk or base soil; flowers and economic seedlings are moved indoors or covered; the tea gardens cover weeds, sawn ash, etc., and the young tea trees are covered with plastic film or straw to prevent Freezing damage occurs.

3, flue-cured tobacco should be done in the shed to cover the insulation work to ensure that the seedling period does not suffer from low temperature hazards, and often protect the moisture of the seedbed, increase the application of thin fertilizer, and promote the growth of tobacco seedlings. Local varieties are recommended to be transplanted when the temperature rises. At the same time, pay attention to the good acupoints, transplant the plants, fill the roots and cover the mulch.

4, poultry house should take measures to do wind and warm work, to maintain appropriate temperature, to ensure that the livestock in the process of strong cold air winter.

5. Using the characteristics of the overwintering insect cluster under low temperature conditions, pruning fruit trees and tea trees, doing a good job in clearing gardens of orchards and tea gardens, cutting off dead branches of diseased branches, burning them intensively, destroying wintering places of pests and diseases, and reducing the source of pests and diseases.

6, rapeseed, vegetables, green manure, etc. in the field crops to clean the three ditch, reduce the humidity in the field, and apply the hot fertilizer according to local conditions, reduce the low temperature hazard.