Group 1 - Typhoon "Bolaoi" is expected to pass over the southern sea of Hainan today, leading to increased wind and rain in the South China coastal areas, with some regions experiencing heavy to extremely heavy rainfall [2][4] - The maximum wind force near the center of Typhoon "Bolaoi" is forecasted to reach level 12 (35 m/s), and it is moving northwest at a speed of 25-30 km/h [4] - The Central Meteorological Administration predicts heavy rainfall in various regions, including parts of Hainan Island, with some areas experiencing extremely heavy rainfall [4][8] Group 2 - The impact of Typhoon "Bolaoi" is expected to intensify today, particularly in southern Hainan, where heavy rain is anticipated [2][8] - The western regions, including parts of Shaanxi and Sichuan, are also experiencing prolonged rainfall, raising concerns about secondary disasters such as landslides [1][8] - The weather forecast indicates that the influence of cold air will be weak in the coming week, leading to high temperatures in southern regions, with some areas experiencing temperatures above 30°C [9]

Group 1 - Typhoon "Bolaoi" is expected to pass over the southern sea of Hainan, leading to increased wind and rain in the South China coastal areas, with some regions experiencing heavy to extremely heavy rainfall [2][3][8] - The maximum wind force near the center of Typhoon "Bolaoi" is recorded at level 12 (35 m/s), and it is moving northwest at a speed of 25-30 km/h [3] - Areas such as southern Hainan, southwestern Guangdong, and southwestern Guangxi are forecasted to experience heavy rainfall, with some areas in southern Hainan expected to see extremely heavy rainfall [3][5] Group 2 - The Central Meteorological Observatory warns that from today, the wind and rain in South China will gradually intensify, particularly in southern Hainan where heavy rain is expected [8] - The ongoing autumn rains in the western regions are expected to continue, with areas like Shaanxi and Sichuan facing multiple rainy days [8] - The northern regions are experiencing cooler temperatures due to autumn rains, while southern regions are likely to see high temperatures exceeding 30°C, especially in Fujian and other areas [9]

Group 1 - The impact of Typhoon "Hagupit" is diminishing, but Typhoon "Bolaven" is approaching, bringing renewed heavy rainfall to South China [1][2] - Areas affected by "Hagupit" experienced strong typhoon rains, with parts of Guangdong, Guangxi, Guizhou, Yunnan, and Hainan experiencing heavy to torrential rain [2][6] - The Central Meteorological Administration forecasts heavy rain in several regions, including parts of Guizhou, Yunnan, Guangxi, Hainan, and Henan [2][4] Group 2 - The return of hot weather is expected in southern regions, with temperatures exceeding 30°C over the weekend, particularly in Fujian and Zhejiang [6][7] - Major cities like Fuzhou may see temperatures rise to 35°C on Saturday and potentially reach 37°C by Monday, indicating a significant heat increase [7] - Northern regions will experience pleasant weather with temperatures around 25°C, but cooler temperatures in the mornings and evenings will require residents to dress warmly [7]

Core Insights - The article discusses the unusual climate phenomena in North China this year, characterized by an early and prolonged rainy season, extreme rainfall, and persistent high temperatures, raising concerns about urban safety, energy stability, and climate adaptability [1][2]. Climate Anomalies - This year's rainy season in North China started over 10 days earlier than usual, with record rainfall and temperatures, indicating a significant deviation from historical patterns [2][4]. - The simultaneous occurrence of extreme rainfall and high temperatures is attributed to the abnormal activity of the subtropical high-pressure system, which has disrupted the typical seasonal weather patterns [2][3]. Regional Climate Dynamics - The subtropical high-pressure system has caused a climate differentiation within the North China region, leading to high temperatures in areas under its influence while simultaneously allowing for extreme rainfall in surrounding areas [3][4]. - The stability of the subtropical high-pressure system has resulted in sustained moisture transport to North China, extending the rainy days and increasing cumulative rainfall, which can lead to severe disasters in localized areas [3]. Future Climate Trends - The early onset of the rainy season is considered a rare anomaly and not indicative of a long-term trend, although the frequency and intensity of extreme weather events are expected to become the new norm due to increasing atmospheric volatility [4][9]. - The article highlights the need for vigilance regarding climate change, as the probability of extreme weather occurrences is likely to rise, necessitating improved disaster preparedness and response strategies [4][9]. Disaster Preparedness in Rural Areas - Rural and mountainous areas face greater threats from extreme weather compared to plains, with rapid rainfall accumulation leading to flash floods, particularly in regions with inadequate disaster preparedness [5][7]. - Recommendations for improving disaster response include enhancing early warning systems, optimizing spatial planning to relocate vulnerable structures, and conducting risk drills to raise public awareness [5][7]. Meteorological Challenges - The article identifies challenges in predicting large-scale climate anomalies and monitoring extreme rainfall in mountainous regions, emphasizing the need for advancements in short-term forecasting technologies [6][10]. - The difficulty in accurately predicting extreme weather events poses significant risks, particularly in areas where rapid flooding can occur within hours [6][10]. Regional Disparities in Disaster Response - There are notable differences in disaster preparedness between northern and southern regions of China, with the south having more established mechanisms for dealing with heavy rainfall and flash floods [7][8]. - Northern regions, with lower vegetation cover and soil moisture retention, are more susceptible to severe impacts from similar rainfall events, highlighting the need for enhanced awareness and preparedness in these areas [7][8]. Climate Change and Energy Security - The article discusses the implications of rising global temperatures, with predictions that 2025 may be among the warmest years on record, raising concerns about meeting climate targets set by the Paris Agreement [8][9]. - The increasing volatility of renewable energy sources, such as wind and solar, poses challenges for energy security, necessitating technological solutions to address their inherent instability [9][10]. Urban Climate Resilience - Urban planning must incorporate climate resilience strategies to mitigate the impacts of extreme weather, with a focus on improving drainage systems and urban layouts to prevent flooding and heat island effects [10][11]. - Investment in rural disaster preparedness is prioritized, as rural areas are more vulnerable to extreme weather events, requiring immediate attention to enhance safety and resilience [11].

Group 1: Weather Changes in Hangzhou - Recent cold air has brought a significant drop in temperatures in Hangzhou, with the highest daytime temperature reaching a new low since July [1] - Most areas in the province recorded minimum temperatures between 19℃ and 23℃, indicating a shift towards cooler weather [1] - The return of the subtropical high pressure is expected to raise temperatures again, with forecasts showing maximum temperatures between 29℃ and 31℃ from Monday to Saturday [1] Group 2: Typhoon Updates - The Central Meteorological Observatory reported that the dual typhoons "Haikashan" and "Raccoon" have both intensified to super typhoon levels [2] - "Haikashan" has reached a strength of 16 levels (55 m/s), making it the strongest typhoon in the Northwest Pacific this year [2] - The expected path of "Haikashan" indicates it will make landfall on the Guangdong coast between Wednesday morning and afternoon [2] Group 3: Impact of Typhoon on Zhejiang - The peripheral circulation of "Haikashan" is expected to bring moderate to heavy rain to coastal areas and southern Zhejiang from Monday to Thursday [3] - Areas such as Wenzhou, Taizhou, and Lishui are likely to experience localized heavy rain and even extreme rainfall [3] - Despite not directly targeting Zhejiang, the extensive cloud system of "Haikashan" will still affect the region significantly, necessitating residents to carry rain gear [3]

Core Viewpoint - The article discusses the characteristics and impacts of autumn typhoons in China, highlighting their increasing frequency and intensity compared to summer typhoons, as well as their potential for causing severe weather events and disasters [1][5]. Group 1: Typhoon Statistics - Over 40% of typhoons occur in autumn, with 859 autumn typhoons recorded from 1949 to 2024, closely following the 867 summer typhoons [1]. - Autumn typhoons exhibit greater peak intensity, with over 60% of typhoons in September and October reaching typhoon strength or above, peaking at 74% in October [1]. Group 2: Typhoon Path and Landfall - Autumn typhoons tend to make landfall further south compared to summer typhoons, primarily affecting Guangdong, Hainan, Taiwan, and Fujian, with Guangdong experiencing 72 landfalls [3][5]. - The shift in landfall locations is attributed to the movement of the subtropical high-pressure system, which influences the paths of typhoons [5]. Group 3: Historical Impact of Autumn Typhoons - Historically, nine autumn typhoons have made landfall in China as super typhoons from 1949 to 2024, with significant destructive potential [6]. - The strongest recorded autumn typhoon was "Marge" in 1973, causing over 900 deaths and extensive property damage in Hainan [6]. Group 4: Factors Contributing to Intensity - The combination of high sea temperatures and the presence of cold air masses in autumn increases the likelihood of stronger typhoons, as the temperature gradient enhances wind speeds [6]. - The interaction between autumn typhoons and cold air can lead to extreme rainfall and heightened disaster risks [6]. Group 5: Current and Future Impacts - The upcoming typhoon "Hua Jasha" is expected to impact southern China, potentially combining with cold air to produce extreme weather conditions [7].

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]

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]

Core Insights - The summer rainy season in North China has set records for both duration and rainfall, marking the strongest rainy season since 1961 [1][2] - The rainy season began on July 5, 2023, which is 13 days earlier than the average, and ended on September 2, 2023, 16 days later than usual, resulting in a total duration of 29 days longer than the average [1][2] - Cumulative rainfall reached 356.6 mm, exceeding the average by 161.1%, establishing a historical high since 1961 [1] Climate Factors - The early onset of the rainy season is attributed to the abnormal northward movement of the subtropical high-pressure system, which has been influenced by climate change and ocean temperature anomalies [2] - The subtropical high-pressure system has been stronger and positioned further north than in previous years, contributing to increased moisture transport to North China [2] Long-term Trends - There is a linear increasing trend in rainfall during the rainy season in North China since the 21st century, although no significant increase is observed over a longer time frame from 1961 to 2024 [3] - Historical data indicates that years with rainfall exceeding 300 mm occurred primarily in the 1980s and 1990s [3] Weather Patterns - The combination of global warming and the early rainy season has led to increased humidity and prolonged high temperatures, resulting in a shift from dry heat to humid heat in North China's summers [4] - The frequency of humid heat events has increased significantly compared to dry heat events since 1981, with a growth rate of 2 to 3 times [4] Climate Change Implications - The record-breaking rainy season is seen as a localized manifestation of climate change, with rising atmospheric moisture and urban heat island effects contributing to more frequent and intense extreme rainfall events [4]

Core Viewpoint - The article discusses the return of high temperatures in the Jiangnan region of China, with temperatures approaching 39°C, leading to a "steaming sauna" effect as the subtropical high pressure strengthens again [1] Summary by Relevant Sections Weather Conditions - From September 5, the Jiangnan region is experiencing a new wave of heat, with temperatures rapidly nearing 39°C, indicating a return to high-temperature conditions [1] - Zhejiang meteorological department forecasts that from September 5 to 8, most areas in the province will see sunny and hot weather, with maximum temperatures reaching 36°C to 38°C, and some areas exceeding 39°C [1] - Shanghai's maximum temperature is expected to rise to around 35°C starting September 5, marking the beginning of a new heat wave [1] - Jiangsu's areas along the river and southern regions will also be covered by high temperatures from September 5 to 7 [1] Future Weather Predictions - Central Meteorological Station data indicates that while cold air and rain may arrive after September 6, the relief will be limited, and most of Jiangnan will still struggle with heat [1] - Meteorological experts predict that around September 9, the subtropical high pressure may weaken and retreat eastward, allowing for a temporary drop in temperatures in some areas of Jiangnan, but the high temperatures are likely to return soon after [1] Regional Weather Disparities - Currently, China's weather map shows a stark contrast between regions, with the northwest and northeast experiencing cool autumn breezes, while Jiangnan and South China continue to endure high temperatures [1] - Experts advise the public in Jiangnan and South China to remain cautious about heat exposure and to avoid prolonged outdoor activities during high-temperature periods, even as the White Dew solar term approaches [1]