The cold wave is coming to an end. Will there be a new cold wave during the Spring Festival this year?

Many people say that the weather is really strange this year. Of course, the weather is beyond human control. Although the weather in the Han Dynasty is coming to an end, it does not mean that there will be no new round of cooling during the Spring Festival. The meteorological department has made a forecast in advance. Let's see if it is accurate.

So what is a cold wave? We still need to popularize science here. The standard of defining cold wave in China is that the average temperature drops above 8 degrees Celsius in one day, or the average daily temperature drops rapidly within two days 10 degrees Celsius, and the lowest temperature is below 5 degrees Celsius and below, which can be a cold wave. Of course, in the middle and lower reaches of the Yangtze River and its covered areas, there is a supplementary provision for the cold wave, that is, the temperature drops above 10 degrees Celsius within two days, the lowest temperature is below 4 degrees Celsius and there is a strong wind of magnitude 5 or above, which can also be used as an early warning standard for the cold wave. Cold wave is a disastrous weather, not a very interesting weather phenomenon.

Every time a cold wave invades our country, the path is different. Generally speaking, the cold air of the cold wave passes through central Siberia, where it will gradually strengthen, and then choose one of the four common paths to enter. Northwest road is mainly from Mongolia to the south near walnut. In this way, there will be northerly winds and cooling in the north of the Yangtze River, and there will be rain and snow if we continue to go south to lower areas.

The east road is mainly from Mongolia to the northern part of North China, and there will be continuous rain and snow in the lower reaches of the Yellow River and the Yellow Sea and Bohai Sea. As for the west road passing through Xinjiang, Qinghai and the northeastern part of the Qinghai-Tibet Plateau, it will lead to obvious cooling in the northwest, southwest and south of the Yangtze River. The last path is from the lower reaches of Hetao to the south, which will lead to rainy, snowy and windy weather in the eastern part of the Loess Plateau and the Yellow River and Yangtze River Basin.

At the end of February, 20021year 65438+,the cold wave weather in China had begun to end, and the temperature in many areas began to rise gradually. However, many people worry that the Spring Festival will not happen again. After all, in the past, there were two cold waves in China, but this year there have been four. The meteorological department also predicts that extreme cold wave weather may occur in 2022 1 and February, and the Spring Festival is just at this time.

Generally speaking, although the meteorological department can't give a specific answer, according to the current forecast, it is likely that there will be extremely cold weather during the Spring Festival. I hope the cold wave doesn't happen too often. For people in the city, they may just feel the cold, but for farmers, the damage to crops is great, and it is likely to reduce production. Everyone should pay attention to keep warm. Farmers, in particular, must take precautions in advance to prevent crops from freezing under the cold wave.

Although the Spring Festival is full of joy and family reunion, friends in most parts of our country should be prepared to prevent the arrival of the cold wave. Put on thick new clothes and get together!