Group 1 - The weather in Hangzhou is experiencing a significant fluctuation due to the influence of the subtropical high pressure, with temperatures reaching up to 35°C and a total of 59 high-temperature days recorded so far this year, tying with 2022 for the second-highest in history [1] - The upcoming week is expected to see a transition as cold air begins to penetrate, leading to a decrease in high temperatures, with forecasts indicating a drop to around 30°C starting Thursday [2] - Despite the current dominance of the subtropical high pressure, its influence is gradually weakening, allowing for the possibility of afternoon thunderstorms and rain, particularly in the northeastern regions [1][2] Group 2 - The cold air is anticipated to bring increased rainfall and a cooling effect across the province, with temperatures expected to drop significantly, especially in northern Zhejiang where highs may only reach 28°C [2] - The subtropical high pressure has been persistent since August, but its future strength remains uncertain as it may strengthen again after the current cold air system passes [2] - Continuous monitoring of weather patterns is advised as the interaction between cold air and subtropical high pressure will determine future temperature trends [2]

Summary of Key Points Core Viewpoint - A new wave of cold air is expected to bring significant rainfall to northern China, particularly from the Sichuan Basin to the Huanghuai region, starting September 15, with a notable drop in temperatures across many areas [1][2][6]. Group 1: Weather Changes - The arrival of cold air will lead to increased rainfall in northern regions, with significant rainfall expected in the Sichuan Basin and Huanghuai area starting tomorrow [2][3]. - Areas such as Inner Mongolia, Heilongjiang, and parts of Jiangsu and Anhui have already experienced heavy rainfall, with some regions facing severe weather conditions [2][5]. - The Central Meteorological Observatory predicts that many northern areas will experience moderate to heavy rain, with some regions likely to see torrential rain [2][4]. Group 2: Temperature Fluctuations - A significant drop in temperatures is anticipated across northern China, with cities like Hohhot, Yinchuan, and Zhengzhou expected to see their highest temperatures fall below 20°C for the first time since the start of autumn [6]. - In contrast, southern regions, particularly in Jiangnan and South China, will continue to experience high temperatures, with the potential for record-breaking heat in places like Fuzhou [6]. - The temperature drop in northern areas is expected to exceed 10°C, signaling the onset of autumn, while southern regions will maintain higher temperatures for a longer period [6].

Group 1 - A strong cold air mass is affecting China, leading to significant temperature drops in the northern regions, with temperatures expected to fall by 4 to 8 degrees Celsius, and in some areas by more than 10 degrees Celsius [2][4] - The highest temperatures in northern regions will drop below 20 degrees Celsius for the first time since the beginning of autumn, particularly in cities like Changchun, Hohhot, and Zhengzhou [2][4] - The cold air will also push the autumn process forward in the North China Plain, with cities like Beijing, Tianjin, and Shijiazhuang likely to officially enter autumn next week [4] Group 2 - The southern regions, particularly southern Jiangnan and South China, will experience limited effects from the cold air, with maximum temperatures remaining around 32 degrees Celsius, indicating persistent heat [6] - Heavy rainfall is expected in the southwestern to Huanghuai regions, particularly in areas like the Sichuan Basin and the Shaanxi-Sichuan border, where extreme rainfall may occur [7][9] - The rainfall will be continuous, with significant precipitation expected from the 15th to the 21st, leading to potential secondary disasters such as flash floods and landslides [9][10]

Summary of Key Points Core Viewpoint - The article discusses the upcoming weather patterns in China, highlighting the persistence of high temperatures in southern regions and a significant drop in temperatures in northern areas due to cold air and rain [1]. Weather Forecast - The "autumn tiger" phenomenon will continue in Jiangnan and South China, with regions like Hunan, Jiangxi, Fujian, Guangxi, and Guangdong experiencing prolonged high temperatures [1]. - Wuhan is expected to see high temperatures on September 15-16, potentially breaking the record for the most high-temperature days in a year [1]. Temperature Changes - A cold air mass will become active in northern regions from September 16-18, leading to a collective drop in temperatures, marking the lowest levels seen in the second half of the year [1]. - In the northwest, north China, northeast, and northern Huanghuai regions, maximum temperatures will drop to around 20°C, with minimum temperatures falling below 15°C [1]. - Harbin and Yinchuan are forecasted to experience their first maximum temperatures below 20°C this year, with Harbin's minimum potentially dropping below 10°C for the first time in the second half of the year [1].

Summary of Key Points Core Viewpoint - The article discusses the recent weather patterns in China, highlighting the ongoing heavy rainfall in certain regions and contrasting temperature trends between the north and south of the country. Group 1: Rainfall and Weather Conditions - Heavy rainfall has been observed in regions such as Hunan, Guizhou, and Yunnan, with local areas experiencing severe downpours [1][2] - The Central Meteorological Observatory predicts continued rainfall in parts of Tibet, Inner Mongolia, Heilongjiang, and other areas, with some regions expecting heavy rain [3][4] - Meteorological experts warn residents in frequently affected areas like Sichuan, Chongqing, and Yunnan to take precautions against potential geological hazards due to the heavy rains [5] Group 2: Temperature Trends - Southern regions, particularly Jiangnan and Huannan, are experiencing persistent high temperatures, with many locations in Zhejiang, Fujian, Jiangxi, and Hunan recording temperatures above 35°C [6] - The northern regions are expected to see a significant drop in temperatures due to active cold air and rainy weather, with many areas experiencing their lowest temperatures in the second half of the year [6]

Group 1 - The weather in Hangzhou is experiencing a temporary relief from high temperatures, with the highest temperature reaching 31.2°C, and is expected to remain below 35°C for the upcoming week [1] - Rainstorms are anticipated from Saturday to the following Monday (13-15), with potential for severe weather including heavy rain and thunderstorms [1] - The overall weather pattern indicates a shift with the retreat of the subtropical high, leading to cooler temperatures and increased rainfall across the province [1] Group 2 - Despite the drop in temperature, high humidity levels are causing discomfort, as humidity impedes sweat evaporation, leading to a feeling of mugginess [2] - The subtropical high may reassert itself from the 17th to the 20th, bringing back warmer conditions with temperatures potentially exceeding 35°C in some areas [2] - Historical data shows that the onset of autumn has been delayed in many regions of China, with cities like Hangzhou experiencing a 5-9 day delay in autumn arrival compared to previous decades [2]

Group 1 - The weather in Hangzhou has experienced a significant temperature drop from 39.4°C on September 8 to a maximum of 30.7°C recently, attributed to the influence of cold air and moisture from the southwest [1][2] - Rainfall is expected to be frequent across the province until next Friday (19th), with specific weather patterns indicating systematic rain or thunderstorms from the 16th to 17th [1][2] - The overall high-temperature weather is coming to an end, with the southern regions potentially experiencing isolated high temperatures before a more stable cooler weather pattern sets in [2] Group 2 - Nationwide, rain and cooling trends are dominating the weather scene, with the weakening of the subtropical high pressure contributing to the drop in high temperatures [2] - A new round of strong rainfall is anticipated in northern regions, particularly in Henan and Shandong, which may experience rare heavy rain during this period [2] - The competition between the "autumn tiger" (late summer heat) and cold air is ongoing, with expectations of a noticeable cold air mass moving southward from the 15th to 17th [2]

Core Points - The article discusses the extreme heat wave in Hangzhou, which has set multiple historical records for high temperatures and consecutive sunny days [1][2][3][4][5][6][7][8] - The arrival of moisture from Typhoon "Tabha" is expected to bring relief in the form of thunderstorms, temporarily reducing high temperatures [5][6] - The persistence of the subtropical high-pressure system indicates that high temperatures may return after a brief respite [7][8] Summary by Sections - **Record High Temperatures** - Hangzhou has experienced unprecedented high temperatures, with the highest recorded temperature reaching 38°C in early September [1] - The city has set multiple records for consecutive sunny days, with 43 days from December 14, 2024, to January 25, 2025, marking the longest streak in history [2] - Other notable records include the highest temperature of 30.3°C on March 2, 2025, and 36 consecutive high-temperature days from August 3 to September 7, 2025 [3][4] - **Impact of Typhoon "Tabha"** - Typhoon "Tabha" is expected to bring moisture to Hangzhou, leading to thunderstorms that will help alleviate the extreme heat [5][6] - The thunderstorms are anticipated to cover the sky, reducing direct sunlight and lowering temperatures to around 32°C [6] - **Future Weather Predictions** - The subtropical high-pressure system is expected to regain strength, potentially leading to a resurgence of high temperatures by the following week [7] - The article suggests that the high temperatures may persist into October, similar to the patterns observed in 2022 [8]

Group 1 - The tropical depression in the South China Sea has intensified into Typhoon "Taba," which is expected to make landfall in the coastal areas of Guangdong from Zhuhai to Zhanjiang between midnight and noon on September 8 [2][4] - The typhoon will bring heavy rain and strong winds to many areas in South China over the next three days, with parts of Guangdong, Guangxi, and Yunnan expected to experience heavy to torrential rain, and localized areas facing extreme rainfall [2][7] - The Central Meteorological Administration forecasts that regions such as southeastern Tibet, eastern and southern Sichuan Basin, and parts of Guangdong and Hainan will see moderate to heavy rain, with some areas experiencing torrential rain [2][5] Group 2 - The high-temperature weather in southern regions has been fluctuating, with recent days seeing a peak in temperatures, but a cooling trend is expected as cold air from the north moves southward [8] - Despite the temporary relief from high temperatures, areas like Zhejiang, Shanghai, and Jiangxi are still experiencing prolonged heat, with Hangzhou potentially breaking its record for consecutive high-temperature days [8] - Northern regions are experiencing a noticeable drop in temperatures, with cities like Hohhot and Taiyuan recording their lowest temperatures of the year, and northeastern cities expected to see new low temperatures around 12°C and 11°C [8]

Group 1 - The weather in Hangzhou has reached record high temperatures, with the highest recorded temperature at 39.4℃, indicating a persistent heat wave that is expected to continue throughout August [1] - The Zhejiang Weather Network forecasts that the high temperatures will persist for the next 10 days, with most areas experiencing temperatures between 36-38℃, and some areas exceeding 39℃ [1][2] - The current weather patterns are influenced by a strong subtropical high pressure system, which is expected to remain dominant until the end of the month, leading to frequent high-temperature days in regions such as Huanghuai, Jianghuai, and Jiangnan [2] Group 2 - Despite the traditional end of the "伏天" (the hot season), the weather in Hangzhou remains unusually hot, prompting questions about the accuracy of traditional weather markers [2] - The meteorological explanation indicates that the traditional markers are based on historical lunar calendars and do not accurately reflect current climatic conditions, emphasizing the need for real-time weather forecasts [2] - A cold air mass has entered the northwest region of China, bringing cooler temperatures and even snowfall in higher altitudes, but it is unlikely to affect the central and eastern regions due to the prevailing subtropical high pressure [3]