When is the cold wave expected to come this year?

The combined action of cold air and warm and humid air this year will also stimulate a large-scale precipitation process. It is estimated that there will be small to moderate rain (snow) or sleet weather in most parts of the central and eastern regions from tomorrow to 6, and there will be heavy snowstorms in parts of eastern Inner Mongolia, central and western Jilin, Heilongjiang and other places from 5 to 6, with heavy snowstorms or heavy blizzards in the local area.

After cooling, the temperature in central and eastern Inner Mongolia and Northeast China is lower 1 ~ 3℃ than normal, and the temperature in most other parts of the country is the same or slightly lower than normal, and the southern part of Northeast China and the north-central part of North China will enter winter. The unusually high temperature in the north in autumn has caused many places to postpone winter. The winter time in most areas of Northeast China, Northwest China and Northwest China is later than normal, and some areas are more than 5 days later.

Disadvantages of cold wave

1. Health problems: The sudden drop of temperature and humidity caused by the cold wave can easily lead to vasoconstriction and increase of blood pressure, thus increasing the risk of cardiovascular diseases. For the elderly, patients with hypertension, patients with chronic diseases and other high-risk groups, the impact of cold wave is more obvious. In addition, the cold wave may also cause respiratory diseases, colds and pneumonia.

2. Agricultural losses: The cold wave has a great impact on agriculture. In the cold wave, plants are vulnerable to freezing injury, resulting in slow growth or death. This will not only affect the yield and quality of crops, but also cause huge economic losses to farmers. In addition, the cold wave may also cause damage to ecological resources such as trees, vegetation and grasslands.

3. Inconvenient transportation: The snow and ice caused by the cold wave may cause problems such as slippery roads, ice and traffic congestion, which brings inconvenience to people's travel. This will not only affect people's daily life, but also have a negative impact on transportation and economic activities.