March 28th, the weather in central and eastern my country showed obvious "polarization" today - it rained in many places south of the Great Wall and the weather was sunny today, and the temperature soared by more than 10 degrees compared to yesterday. As can be seen on the 24-hour temperature change map, At 16:00, a large-scale orange-red warming area spread from the Qinghai-Tibet Plateau to along the Yangtze River. The temperature in many places in Sichuan, Hubei, and Anhui exceeded 10 degrees in 24 hours. In contrast, blue-purple cooling areas appear in eastern Inner Mongolia and the three northeastern provinces. Under the invasion of cold air driven by extratropical cyclones, the temperature in many places here dropped quite significantly today.
1. Guangzhou may welcome the earliest summer in history
The hourly temperature map shows that amid the large-scale warming, this afternoon warm temperatures of around 25 degrees occurred in many places in the eastern northwest, eastern southwest, Huanghuai, and Jianghan. Among the provincial capital cities, the highest temperatures in Xi'an, Zhengzhou, Chongqing were all over 26 degrees. The Three Gorges in Hubei, 29.6 degrees, and the Langao, Shaanxi, 29.1 degrees were the highest temperatures in the two provinces today. Tomorrow, the temperature in central China will continue to rise, and it may reach 30 degrees in southern Shaanxi and western Hubei.
In fact, this afternoon, the streets and alleys along the coast of South China have begun to echo with the songs of summer. Summer came extra early this year, like an uninvited guest, quietly occupying the throne of spring. This afternoon, the temperature in many places in Guangdong has generally reached 27 to 28 degrees, and the warm feeling is a bit like early summer.
According to the temperature sequence of Guangzhou Station (59287), we have reason to believe that this city is entering the threshold of summer - the weather standard for summer is relatively complicated. To simplify, it is summer when the daily average temperature reaches 22 degrees. Summer begins when the daily average temperature reaches summer for 5 consecutive days. In the past period of time, the temperature at Guangzhou Station has stably reached this level, and summer may begin on March 23. This day is earlier than the earliest summer in historical records. (March 26, 2021) Three more days in the morning. This is not just a numbers game, this is evidence that Guangzhou is ushering in the earliest summer in history.
2. Will you cry in the heat of July this year?
As summer is getting closer, the citizens of Guangzhou may have felt the changes in the air. Judging from historical data, summers in Guangzhou are usually warm and humid, but this summer seems to be showing its heat more eagerly. The beginning of summer on March 23 is not just an update of the date, it is a signal of climate change, reminding us of the challenges we may face in the future.
Against this background, we can’t help but ask, will not only Guangzhou but also more places in central and eastern my country be “crying with heat” due to high temperatures in July this year? Although it is currently impossible to accurately predict the temperature trend throughout the summer, it is certain that the strong performance of the subtropical high pressure and the active warm and humid airflow will bring sustained high temperature weather to Guangzhou in the short term. This means that, at least for the next few weeks, Guangzhou residents will have to adapt to summer heat earlier than usual.
The reason why summer can start so early in Guangzhou is that on the one hand, the subtropical high pressure has recently become stronger, constantly showing its power to our country, as well as the continuous strengthening of warm and humid airflow and the northerly direction of rain belts, which are adding to the problems in many places in South China. A bit of a hot color. The Pearl River Delta region, especially Guangzhou, will continue to be in a warm and humid environment, and the average summer temperature will continue to exceed 22 degrees.
3. El Niño has changed
However, we still need to remain cautious about the temperature trend this summer. El Niño, the atmosphere-ocean interactive theater in the Pacific, is playing out a new scene. Current forecasts suggest that El Niño may gradually fade and transition to La Niña conditions from mid-year. This change will make my country's temperature pattern more complex, and future weather trends will be like rolling dice, full of uncertainty.
The weather is always full of variables, especially in the context of global climate change. Changes in the El Niño phenomenon, especially its possible retreat and transition to La Niña, will have an important impact on our country's summer temperatures.If El Niño really begins to weaken and gradually transitions to La Niña, then we may see a more variable summer climate pattern, which will have a profound impact on summer weather in Guangzhou and even the entire southern region.
In South China, in this season of spring and summer, we feel the gentleness of the climate and witness its power. This early summer in Guangzhou is not just a change of seasons, it is a microcosm of climate change and a reminder from nature that the world we live in is changing at a speed we cannot predict. And how should we face this ever-changing summer? This is a question worth pondering for everyone.
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