Lidong’s arrival does not feel cold, Changsha is still in autumn Expert: Lidong does not mean going into winter_La Nina

Original title: Lidong does not feel cold, Changsha is still in autumn Expert: Lidong is not the same as winter

Lidong’s arrival does not feel the cold, Changsha is still in autumn

Meteorological experts said that the beginning of winter does not mean that the highest temperature in Changsha in the next week will be above 20 ° C.

Changsha Evening News, November 7 (all media reporter Zhang Yangzi) November 7 is the beginning of the winter solar period, but Changsha is sunny and the highest temperature is above 20 ° C. Does it mean that this winter will be very cold? ” Many citizens were puzzled. In fact, Lidong does not mean the beginning of winter, Changsha is still in autumn, and winter has not yet come.

At the beginning of the winter solstice, Changsha did not leave in autumn

“By the winter standard, the average temperature for five consecutive days is less than 10 degrees Celsius before it officially enters winter.” According to Deng Dahai, director of the Changsha Meteorological Observatory, people regard Lidong as the beginning of winter, but Lidong does not mean entering winter. From a meteorological point of view, at the beginning of winter, cold air will appear more often and cold will become heavier. However, the highest temperature in Changsha in the next week will be around 23 ° C, and there will be no interruptions of rain, and it will remain the most comfortable autumn for the human body.

When will winter come? According to the forecast of the Central Meteorological Observatory, as of November 7, the winter “territory” has already occupied “half of the country” of China, especially in the northern capitals, the winter process is generally earlier this year usual. For example, Taiyuan entered winter on October 17, which is more than usual. About 4 days earlier, Beijing also started the winter process on November 3, and the current winter “grass” continues to expand south of the Yangtze River.

All of Hunan is still in autumn. “Changsha usually goes into winter until the end of November.” Deng Dahai said that the winter of 2017 in Changsha will be on November 18, the winter of 2018 will be on December 4, and 2019 will be on November 25. This year it shouldn’t be. Too much difference. According to the weather forecast, the weather will be good in most of Hunan in the next three days, with small fluctuations in temperature. From 7 to 14, Changsha has been cloudy or sunny. The lowest temperature is around 10 ℃ and the highest temperature is more than 20 ℃. It can be described as a pleasant late fall season. It is filled with good fall weather every day.

“Citizens can take advantage of the coolness of autumn and take advantage of outdoor sports.” Ding Xuan, a spokesman for the Municipal Meteorological Office, told reporters that the climate of the Lidong solar terms is the change from a dry and rainy autumn to a cold and rainy winter climate. Changsha will be dry and less rainy for the next week. On rare occasions, “From today’s point of view, there is no strong cold air activity. Because northeast and north winds prevail in winter, the surface is getting colder and colder, but the heat stored in the surface currently has a certain amount of energy. Therefore, it is not cold in late autumn and early winter. But as time passes and strong cold air frequently moves southward, the weather in Changsha it will get colder and colder and winter is coming. “

Will it be very cold this winter?

The weather is getting colder, but how cold will it be? Will it really usher in the “coldest winter in 60 years”? At a recent press conference held by the China Meteorological Administration, Jia Xiaolong, deputy director of the National Climate Center, believed that although the temperature may be low this winter, the possibility of “the coldest in 60 years” is unlikely. “The cold air that will affect our country this winter is expected to be frequent and strong. The temperature in most of the country will be close to normal to low. Especially in January of next year, cold air activity will turn significantly stronger”.

“This winter will be affected by La Niña.” Zhang Zhuqing, a senior engineer with the Municipal Meteorological Office, reported that from September 14 to October 8 this year, Changsha experienced rare low temperatures and rainy weather, with the shadow of La Niña behind. “La Niña” is a phenomenon in which the marine waters of the central and eastern equatorial Pacific continue to become abnormally cold, and it is also one of the important factors affecting China’s winter climate. Monitoring by the National Climate Center shows that as of August this year, the equatorial Central and Eastern Pacific has entered “La Niña” status and continues to develop, a “La Niña” event is expected to form this winter.

“It will reduce the transport of water vapor in southern China, and the cold air activity from high latitudes will be more frequent and may be a bit stronger.” Zhang Zhuqing believes that in the context of global warming, the subsequent evolution trend and the La Niña climate The impact is uncertain and changes in atmospheric circulation, sea ice and snow cover in the middle and high latitudes will also have an impact on winter weather. The meteorological department is also closely monitoring and issuing forecasts on time.

Although there has not been an interruption to cold air recently, the frequency of smog has increased under the calm and stable weather. Chen Jingjing, chief forecaster of the Provincial Meteorological Observatory, explained that fog and haze are prone to occur during the intermittent period of cold air. In the case of good water vapor conditions, foggy weather is likely to form in the morning, negatively impacting people’s travel.Return to Sohu to see more