Is it cold this winter? Winter weather forecast 2018-2019
4hw.com.cn: the winter solstice is coming soon. Our friends have felt the power of the first wave of cold winter. Some friends say that this summer is very hot and winter should not be cold, right? In fact, it is not. Now the temperature is in a state of polarization. Let's see if this year is a cold winter?
The temperature standard for dividing warm winter or cold winter is 0.5 ℃: when the average temperature in this year's winter (December - February of the next year) is 0.5 ℃ higher than that in previous years, then the winter of 2018 is a warm winter; On the contrary, if the average temperature is 0.5 ℃ lower than that in previous years, it is a cold winter.
China has not had a cold winter for a long time. According to historical records, the last abnormal cold in China was in 2008. It has been 10 years. Since then, there has been no cold winter in the real sense.
Every year, some people speculate that it is a cold winter, but in fact, it is just some speculation without scientific basis. The beginning of a cold winter is not based on temporary data, but predicted by some climate phenomena that occurred that year, and this is only a prediction for reference. After all, the weather is changing all the time, Who knows what will happen next second.
In the past two days, it has been predicted that 2018 will be an extremely cold winter, mainly because of the El Ni ñ o phenomenon this year. This phenomenon is that the sea water in the eastern Pacific is warmer than that in the Western Pacific, which usually leads to extreme weather such as drought and waterlogging. After this phenomenon occurs, it may be followed by La Nina phenomenon, which is opposite to El Nino phenomenon. Once it occurs, the world may usher in extremely cold weather. Therefore, people predict that this year will be a cold winter from the El Ni ñ o phenomenon.