The landing location still has significant variables, why is it difficult for Shanghai to have a hot day during the hottest period of the year? Shadow | Typhoon in the approach map of Typhoon No. 5
Starting from July 23rd, Shanghai will enter the last solar term of the lunar summer, known as the "Great Heat". The larger one is the extreme heat. Meteorological data shows that the "Great Heat" season is usually the hottest period of the year in Shanghai. However, this year may not be the case.
From the temperature trend this week, Shanghai has not had a high temperature day above 35 ℃, with the highest temperature fluctuating between 30 ℃ and 34 ℃. The reason is also very clear: the impact of the typhoon may be coming.
![The landing location still has significant variables, why is it difficult for Shanghai to have a hot day during the hottest period of the year? Shadow | Typhoon in the approach map of Typhoon No. 5](https://a5qu.com/upload/images/23558809195871ad8f7b19b1627fbaf5.jpg)
According to a typhoon bulletin released by the Central Weather Bureau at 17:10 on July 23, Typhoon Dussuri, the fifth typhoon of the year, has been upgraded to typhoon level. Its center position at 17:00 on July 23 is about 760 kilometers east of Manila, Philippines. In the future, it will continue to strengthen, with the strongest reaching super typhoon level.
Where exactly is it going in the future? Everyone is very interested in this. From the forecast models of various professional institutions, it is highly likely that it will land in China this week, but there is great uncertainty about where it will land in China.
![The landing location still has significant variables, why is it difficult for Shanghai to have a hot day during the hottest period of the year? Shadow | Typhoon in the approach map of Typhoon No. 5](https://a5qu.com/upload/images/e47a1b8c6fddfc5528c2571089fbbf98.jpg)
The typhoon path map released by the Central Meteorological Observatory is clear at a glance. Some friends may think that the shaded area in the picture represents the size and impact range of the typhoon, but in fact, it is not so. This shaded area represents the area that the typhoon center may pass through in the future. From the graph, it can be seen that the center of "Du Suri" may pass through areas such as Zhejiang, Taiwan, Fujian, and Guangdong in the future, and is currently undergoing adjustments.
The Central Meteorological Observatory stated that the exact location of the typhoon's landfall will depend on after July 26th. During the process of approaching Taiwan, there are changes in Du Suri's path, which may adjust towards the southwest or north to the east.
![The landing location still has significant variables, why is it difficult for Shanghai to have a hot day during the hottest period of the year? Shadow | Typhoon in the approach map of Typhoon No. 5](https://a5qu.com/upload/images/36e000767960004a624fed222d0bf54b.png)
Regardless of the later path, the impact of wind and rain on Shanghai is inevitable. The Shanghai Meteorological Department stated that from July 27th to 29th, there will be wind and rain weather due to the influence of the typhoon's peripheral circulation.
Before and after the impact of the typhoon, thunderstorms were still inevitable in Shanghai. Today, there is still rain in Shencheng, sometimes with showers or thunderstorms, and the rain may be more noticeable than yesterday. Everyone should prepare rain gear when going out. When encountering local heavy rainfall, it is recommended to take shelter indoors in a timely manner. Affected by the edge of the subtropical high pressure at the end of the month, the highest temperature in Shencheng will rebound to 34 ℃ again, and local thunderstorms are still frequent.
![The landing location still has significant variables, why is it difficult for Shanghai to have a hot day during the hottest period of the year? Shadow | Typhoon in the approach map of Typhoon No. 5](https://a5qu.com/upload/images/7a8f824cc7e313395143f62f52953cd1.png)
Recently, there have been frequent thunderstorms in Shanghai, and many friends have taken pictures of local areas raining on high-rise buildings. On July 21st, it rained heavily in the central urban area, but my friends in Old Minhang did not see any drops of rain. Why is there a difference between a clear sky nearby and a rainstorm pouring in the distance?
The ancients distilled this weather phenomenon into a farming proverb, "Summer rain separates cows from their backs," which is used to describe the uneven distribution of rainfall. Meteorologists say that in summer, as the intensity and duration of sunlight increase, the ground rapidly heats up and heats up the air, forming updrafts. Low level water vapor is transported to the upper atmosphere, and convective rainfall occurs when it cools down. Due to the different thermal storage capabilities of different types of landforms, temperatures can vary from high to low. For example, the temperature of grasslands, water surfaces, and forests is low, while the temperature of land and roads is high, and the areas of rainfall will also vary greatly. Secondly, convective rain often occurs in cumulonimbus clouds, and the size of the clouds also determines the extent and intensity of the rain.
![The landing location still has significant variables, why is it difficult for Shanghai to have a hot day during the hottest period of the year? Shadow | Typhoon in the approach map of Typhoon No. 5](https://a5qu.com/upload/images/fae2dd9c462df2b22a02819df92a120c.png)