Group 1 - Beijing experienced heavy rainfall, with an average precipitation of 56.5 mm across the city from July 28, 20:00 to July 29, 07:00, and the maximum recorded at 184.2 mm in Fangshan Shilou [1] - Cumulative rainfall in Beijing from January 1 to July 29 reached 527.4 mm, which is 66.8% more than the average of 316.1 mm for the same period, and 68.4% more than last year's 313.2 mm [1] - Since the onset of the flood season on June 1, total rainfall has been 420.8 mm, exceeding the average of 240.7 mm by 74.8% and last year's 228.2 mm by 84.4% [1] Group 2 - The recent heavy rainfall in Beijing is attributed to an unusually northward and stable subtropical high-pressure system, which has led to frequent rain since July 24 [2] - A weather system known as the westerly trough influenced Beijing on the night of July 28, resulting in widespread rainfall across the city [2] Group 3 - Meteorological authorities have issued a yellow rainstorm warning, advising against driving through flooded areas and staying away from regions prone to geological disasters [3]

Core Viewpoint - The recent heavy rainfall in northern China, particularly in Beijing and Hebei, is attributed to abnormal atmospheric circulation patterns, with the subtropical high pressure system playing a significant role in the early onset of the rainy season [1][3]. Group 1: Weather Patterns and Impacts - The subtropical high pressure has shifted northward, leading to an influx of warm, moist air into northern China, which has resulted in extreme rainfall events [1][2]. - The average rainfall in the North China region has reached 121 mm, which is nearly 30% higher than the historical average for the same period [2]. - The rainy season in North China began on July 5, 13 days earlier than the historical average, marking the earliest start since 1961 [2][3]. Group 2: Typhoon Influence - Typhoon "Zhu Jie Cao" has been reclassified and is expected to impact eastern China significantly, with strong winds and heavy rainfall predicted in several regions [4]. - The typhoon indirectly affects the rainfall patterns in northern China by altering the atmospheric circulation, which influences the subtropical high pressure's position and intensity [4]. Group 3: Future Weather Forecast - A strong rainfall event is anticipated in northern China, with warnings issued for potential mountain floods and geological disasters due to cumulative rainfall effects [5]. - The overall precipitation trend is expected to weaken, but localized heavy rainfall may still occur [5].

Group 1 - The recent heavy rainfall in northern China has been influenced by a combination of factors, including stable subtropical high pressure, prolonged convective activity, and orographic lifting from the Yanshan and Taihang mountains [2][4] - Specific areas such as Yixian in Hebei and Miyun in Beijing have experienced localized rainfall exceeding 400 to 500 millimeters, approaching their annual average precipitation [2] - The current heavy rainfall event is expected to gradually diminish by the 30th, as the subtropical high pressure retreats southward and moisture transport decreases [4] Group 2 - Typhoon "Zhu Jie Cao" is expected to impact the eastern China region, with forecasts indicating it may make landfall on the 30th, bringing significant rainfall to areas like southern Jiangsu, Shanghai, and eastern Zhejiang [5][7] - The typhoon's trajectory suggests it will slow down as it moves inland, necessitating close monitoring of its potential for sustained rainfall in the eastern regions [7] - The weather patterns indicate a shift from northern heavy rainfall to increased precipitation in the eastern coastal areas due to the typhoon's influence [5]

Core Viewpoint - The article discusses the impact of Typhoon "Zhu Jie Cao" on Beijing's rainfall, highlighting the indirect influence of the typhoon through moisture transport, leading to significant rainfall events in the region [2][3]. Group 1: Typhoon Influence - Typhoon "Zhu Jie Cao" has indirectly affected Beijing's rainfall by enhancing moisture conditions, although the primary influence comes from a high-altitude trough [2]. - The typhoon, which weakened on the 26th but regained strength, contributes to the moisture supply that enhances rainfall predictions for Beijing [2][3]. Group 2: Rainfall Predictions - Without the influence of the typhoon's moisture, the rainfall in Beijing would likely be less intense, but the current predictions indicate heavier rainfall due to the added moisture from the typhoon [3]. - Rainfall is expected to taper off after the daytime of the 29th, with a brief period of reduced precipitation before another significant rainfall event around August 3rd [4]. Group 3: Rainfall Characteristics - The rainfall distribution in Beijing is uneven, with some areas experiencing heavy rainfall while others remain dry, attributed to different weather systems affecting the region [4][6]. - The rainfall on the night of the 28th is characterized as a systematic and predictable weather event, although there are challenges in forecasting due to the influence of cold air and local topography [7].

Group 1 - The article discusses the extreme convective weather that occurred in Beijing's Miyun, Huairou, and Yanqing districts due to the influence of warm and humid airflow from the edge of the subtropical high-pressure system [1] - Meteorological experts indicate that Beijing has entered the main flood season, with a significant increase in the probability of heavy rainfall events during this period [1] - The article emphasizes the need for public awareness and preparedness for potential geological disasters such as flash floods and landslides due to frequent rainfall in the coming days [1] Group 2 - The Beijing Center for Disease Control and Prevention advises the public to pay attention to drinking and food hygiene during the rainy season, recommending against using rainwater for washing fruits and utensils [2] - It is suggested that individuals should wash any skin areas that come into contact with rainwater promptly to prevent skin diseases [2]

Group 1 - The subtropical high pressure has shifted northward, causing heavy rainfall in North China and Northeast China, while Central and South China experience hot and humid weather [1] - In North China, historical rainfall records have been broken, with Hebei's Fuping accumulating 375.2 mm of rain in just 10 hours on July 25 [1] - The heavy rainfall pattern in North China and Northeast China is expected to gradually weaken as the subtropical high pressure retreats eastward [1] Group 2 - Typhoons "Fanxiao" and "Zhujiacao" have been decommissioned, but their residual circulation continues to affect East China, bringing rain to regions like Zhejiang and Fujian [2] - The East China region will continue to experience rain due to the combination of residual typhoon effects and monsoon airflow, with cities like Hangzhou expecting rain almost daily until August 1 [2] Group 3 - Increased rainfall has suppressed high temperatures in East China, but the humidity has led to uncomfortable, muggy conditions [3] - High temperatures are expected to persist in regions such as southern North China, Huanghuai, Sichuan Basin, western Jiangnan, and South China, with some areas reaching around 40°C [3]

Group 1 - The northern regions of China have been experiencing record-breaking heavy rainfall since July 23, with some areas receiving nearly a year's worth of rain in a single day [1] - A total of 19 weather stations in northern China have broken historical monthly precipitation records, with 13 stations setting all-time highs [1] - The extreme rainfall has resulted in cumulative precipitation exceeding 100 millimeters in several areas, with some regions like Shijiazhuang and Baoding surpassing 400 millimeters [1] Group 2 - The Central Meteorological Observatory has issued a yellow rainstorm warning, predicting heavy rain to continue but with a weakening trend over the next three days [2] - Areas expected to be affected include parts of Inner Mongolia, Shaanxi, Shanxi, Hebei, Beijing, and several other provinces, with localized heavy rain and strong convective weather possible [2] - Despite the expected reduction in rainfall intensity, caution is advised, especially during nighttime when heavy rain is more likely [2] Group 3 - The causes of the heavy rainfall in North China are complex, involving sufficient moisture from the summer monsoon and the influence of cold air from the westerly wind belt [3] - The topography of the Taihang Mountains enhances the efficiency of moisture condensation, contributing to extreme localized rainfall [3] - The phenomenon known as "three typhoons dancing together" is related to the rainfall but does not have a direct causal relationship with the current heavy precipitation events [3]

Core Viewpoint - The article discusses the onset of the "Seven Down, Eight Up" flood prevention period in Northern China, highlighting the significant rainfall and extreme weather events expected during this time [1][4][11]. Summary by Sections Rainfall Patterns - The "Seven Down, Eight Up" period typically occurs from late July to early August, during which Northern China experiences concentrated rainfall, accounting for about one-third of the annual precipitation [4][10]. - Historical data from 1991 to 2020 indicates that major cities in the region, such as Beijing, Shijiazhuang, and Jinan, receive over 50% of their annual rainfall during these two months [4][6]. Extreme Weather Events - The article references several historical extreme rainfall events, including the 2021 Zhengzhou and 2012 Beijing floods, emphasizing the potential for record-breaking rainfall during this period [6][10]. Meteorological Influences - The article identifies key meteorological factors contributing to the rainfall, including the influence of the subtropical high-pressure system, warm moist air from the sea, and cold air from Siberia, which interact to create severe weather conditions [7][10]. - The geographical features, such as the Taihang and Yanshan mountain ranges, play a significant role in enhancing rainfall as warm moist air is forced to rise and cool, leading to precipitation [10]. Forecast for Current Year - According to the National Climate Center, the forecast for this year's "Seven Down, Eight Up" period indicates above-normal precipitation in regions such as Inner Mongolia, Heilongjiang, and Shandong, with rainfall expected to be 20% to 50% higher than usual [10][11].

Group 1 - The current weather in Hangzhou during the "Great Heat" period is unusually mild, with a maximum temperature of only 32.7℃ due to the influence of tropical systems and frequent rain [1] - The upcoming weather forecast indicates that temperatures may rise slightly to around 35℃, but overall, high temperatures are not expected to dominate this season [1] - A new tropical low pressure system is developing in the sea, which may strengthen into Typhoon "Vansga" and could impact the weather in the Zhejiang-Fujian coastal area [2] Group 2 - The expected weather conditions for the end of July include continued rain and thunderstorms across Zhejiang, with maximum temperatures ranging from 30 to 33℃, deviating from typical summer heat [2] - The presence of tropical systems is preventing the subtropical high pressure from dominating the Jiangsu-Zhejiang-Shanghai region, leading to a cooler "Great Heat" period [2] - The weather forecast emphasizes the need for ongoing monitoring of weather updates and warnings due to the potential impact of the developing tropical system [2]

Core Viewpoint - The article discusses the weather conditions in Guangdong, highlighting the impact of high temperatures and the potential formation of Typhoon "Vapa" in the coming days [2][4][6]. Summary by Sections - **Weather Conditions**: From July 16, Guangdong will experience mainly sunny and hot weather, with maximum temperatures ranging from 34°C to 37°C [2][8]. - **Typhoon Development**: Although Typhoon "Baihe" currently has no impact on China, a disturbance south of it is expected to develop into Typhoon "Vapa" after July 17, potentially making landfall in Guangdong or Hainan early next week [5][6]. - **Rainfall Forecast**: On July 16-17, Guangdong will continue to experience high temperatures along with thunderstorms, with localized heavy rain or storms expected [8][13]. - **Future Weather Predictions**: The Central Meteorological Observatory forecasts that 1 to 2 more typhoons may form in the Northwest Pacific and could affect the southeastern coastal areas of China after mid-July [12]. - **Severe Weather Alerts**: On July 18-19, thunderstorms are expected to intensify across Guangdong, with many areas experiencing moderate to heavy rain and short-term wind gusts of 8 to 10 levels [9][13].