In the past few days, Siberia is experiencing a rare heat wave in the same period, and the Urjupino weather station in Russia, which is only across the Ergun River from the mainland, recorded a record high of 39.4 degrees yesterday, while the maximum temperature at the Hulunbuir automatic station also rose to 38 degrees. Today, the Siberian heat wave continues to expand eastward, and satellite images can be seen as billowing smoke from the burning of large swaths of Siberian forests drifting thousands of kilometers downwind to Hokkaido, the Kuril Islands, and even the North Pacific Ocean.
1. Local false sleet in the south
But just as Siberia is starting to approach 40 degrees, the weather forecast in Changzhou, Jiangsu Province, mentions sleet on July 10. This news made many netizens dumbfounded, after all, in the Jiangsu, Zhejiang and Shanghai regions in midsummer July, the temperature is usually high, and the snow is almost a fantasy.
What's going on? Is the weather really messed up? In fact, looking at the details of the forecast, the minimum temperature in Changzhou when forecasting sleet is still more than 20 degrees, and the maximum temperature is close to 30 degrees, which obviously does not meet the conditions for snowfall, which is undoubtedly a false alarm, which has brought some misunderstanding and confusion to people. Soon, Changzhou's forecast changed the sleet on July 10 to showers, indicating that the sleet was just an oolong.
Second, the wide range of high temperatures continues!
At present, the strong subtropical high is gradually expanding the control range, and the continuous high temperature mode has been started in Jiangsu, Zhejiang and Shanghai. The subtropical high is a powerful weather system that usually brings sunny and hot weather with little rain, causing temperatures to soar to high levels. The temperature data at 12 noon on July 4 showed that the temperature at many stations in Jiangsu, Zhejiang and Shanghai had exceeded 35 degrees Celsius, and some areas even exceeded 38 degrees, and Shanghai Xujiahui directly ranked first in the country.
Such hot weather is not uncommon in the middle of summer. The subtropical high often dominates the southern part of the continent in summer, causing widespread high temperatures. This situation is most obvious in July and August every year, especially in Jiangsu, Zhejiang and Shanghai, where the unbearable heat has become the norm.
At the same time, the forecast of the Central Meteorological Observatory shows that from July 4 to 8, the main rain belt in the central and eastern regions will be located in North China and the Huanghuai region. Heavy to heavy rain will occur in southern Shanxi, southern Hebei, Tianjin, Henan, Shandong and northern Jiangsu and Anhui, and there may be heavy rain locally. Cumulative rainfall may reach 100 to 150 mm in some areas, and local rainfall in places such as northern Henan and northern Shandong may even exceed 200 mm.
This kind of rain is also a common occurrence in the summer. As the rain belt moved northward, rainfall gradually increased in North China and the Huanghuai region, alleviating the previous drought conditions. However, such heavy rainfall may also bring some secondary disasters, such as urban waterlogging and flash floods, which require local residents to be vigilant and take precautions.
Looking ahead, the subtropical high is likely to weaken somewhat. This means that the hot weather in Jiangsu, Zhejiang, Shanghai and other places may be eased, but it may also lead to the strengthening of rainfall. According to the forecast of the Central Meteorological Observatory, from 9 to 14 July, the rain band will gradually press southward to the southern part of Huanghuai, Jianghuai and northern Jiangnan. Heavy to heavy rain will occur in southern Henan, central and southern Jiangsu and Anhui, eastern Hubei and other places, and there may be heavy rain locally. For example, in Changzhou's forecast, heavy rain is likely to occur on July 9, which is a sign that the subtropical high will weaken and the rain belt will revert to the south.
In summer, the game between the subtropical high and the Meiyu belt is an important factor in the continental weather change. The Meiyu belt refers to the precipitation belt formed by the convergence of cold and warm air masses, which is usually active in the middle and lower reaches of the Yangtze River in summer. The subtropical high is a powerful warm air mass that pushes the Meiyu belt northward, causing the middle and lower reaches of the Yangtze River to enter a period of intermittent rainfall. This year's situation is no exception. With the strengthening of the subtropical high, the Meiyu belt gradually moved northward, resulting in a period of high temperature and little rain in Jiangsu, Zhejiang and Shanghai. This weather pattern is expected to continue for some time until the subtropical high weakens and the Meiyu belt presses southward again, bringing new rainfall processes.
To sum up, the sleet forecast in Changzhou is obviously a false alarm, and it is unlikely that snowfall will occur in Jiangsu, Zhejiang and Shanghai in the summer. At present, the subtropical high is dominating the high temperature weather in the south, and it is expected that the high temperature will continue for some time to come. At the same time, the rainfall in the central and eastern regions will gradually intensify. In the face of such weather changes, we need to pay close attention to the weather forecast and take measures to ensure that we can survive the hot summer safely.
In this information age, weather forecasting has become an indispensable part of our lives. Despite occasional false positives, the accuracy and timeliness of weather forecasts are generally improving. We should look at the forecast information rationally, respond to weather changes scientifically, and avoid unnecessary panic caused by false alarms.
In short, the weather situation this summer is complex and changeable, with both the test of continuous high temperatures and the challenge of heavy rainfall. We should pay close attention to weather forecasts and respond to weather changes scientifically to ensure that we can survive each day in the hot summer. Through scientific countermeasures, we can effectively reduce the impact of weather changes and ensure the normal progress of life.