Group 1 - Typhoon "Yangliu" made landfall in Taiwan and Fujian, becoming the strongest typhoon to hit China this year, with its initial landfall in Taitung County at strong typhoon level and later weakening to strong tropical storm level upon its second landfall in Fujian [1][2] - The typhoon has caused severe weather conditions, including heavy rain and strong winds in Taiwan, Guangdong, and Fujian, with some areas experiencing extreme rainfall, such as 635.5 mm in Pingtung County, Taiwan [2][6] - The Central Meteorological Administration forecasts continued heavy rainfall in regions like Guangdong and Guangxi, with potential for localized extreme rainfall in several areas [2][3] Group 2 - The influence of the subtropical high pressure is expected to bring back "sauna weather" to the North China Plain, with cities like Jinan and Zhengzhou likely to experience consecutive high temperatures this weekend [4] - The Yangtze River Delta region is also expected to endure high temperatures, with cities like Shanghai and Hangzhou facing persistent heat over the next week, while areas affected by Typhoon "Yangliu" will see a temporary drop in temperatures [4] - Current weather warnings include orange alerts for heavy rain and blue alerts for typhoons, indicating the potential for secondary disasters due to prolonged rainfall in regions like Guangxi and Hunan [6]

Group 1: Heavy Rainfall - Strong rainfall is expected in the Sichuan Basin, Jianghuai, and Jianghan regions over the next few days, with significant rainfall intensity and potential for secondary disasters [3] - From the night of August 12 to 13, rainfall will weaken in Jianghuai, but areas like Hubei, Hunan, Guizhou, Yunnan, and Tibet will still experience moderate to heavy rain, with localized heavy rainfall [5] - The northeastern regions will also see rainfall, with localized severe convective weather expected, particularly in Inner Mongolia and parts of Heilongjiang and Jilin [7] Group 2: High Temperatures - High temperatures will persist in Jiangnan and South China, with some northern areas also experiencing a resurgence of heat [8] - From August 13, the subtropical high pressure will move northward, bringing hot and humid weather to northern regions, leading to a period of "sauna days" [9] - Despite the arrival of autumn, high temperatures in southern regions are expected to continue until around the National Day holiday [10] Group 3: Typhoon - Typhoon "Yangliu" has generated attention, with current conditions indicating a lack of symmetry and significant vertical wind shear, which may hinder its development [12] - The typhoon is expected to move westward at a speed of 20 to 25 kilometers per hour, with initial strengthening followed by gradual weakening as it approaches the eastern waters of Taiwan [12] - The future trajectory of "Yangliu" remains uncertain, with potential impacts on Taiwan and coastal provinces like Fujian and Zhejiang depending on its strength [13]

Group 1 - Beijing experienced heavy rainfall, with an average precipitation of 41.8 mm across the city from July 9, 16:00 to July 10, 10:00, and a maximum of 179.4 mm recorded in Yan Village, Fangshan District [1][2] - The rainfall was primarily convective, triggered by high humidity and weak cold air, leading to uneven distribution, with significant rainfall in urban and western/southern areas, while eastern regions saw minimal precipitation [2] - The Beijing CDC issued health warnings regarding drinking water safety during the flood season, advising residents to avoid contaminated water sources and to report any abnormalities in tap water [3] Group 2 - Starting from July 20, the city will enter a period of high temperatures known as "San Juan days," with expected temperatures rising to 34-35°C over the weekend [4][5] - The "San Juan days" will last for 30 days, with the shortest duration in recent years, emphasizing the need for public awareness regarding heat-related health risks [5]

Core Viewpoint - The recent hot and humid weather in Beijing is attributed to the northward movement of the subtropical high pressure, leading to a "sauna-like" experience for residents [1][3]. Weather Conditions - The phenomenon known as "returning south weather" typically occurs from February to April in southern China, but the current conditions in Beijing are due to the subtropical high pressure affecting the region [1][3]. - The Central Meteorological Observatory indicates that the hot and humid weather is normal for summer, although it has arrived earlier this year compared to previous years [3]. Forecast and Duration - The forecast predicts that the hot and humid weather will persist for an extended period, with 12 out of the next 14 days in Beijing expected to have rainfall [4][5]. - The highest temperatures are projected to reach 37°C on July 12 and 13, with the subtropical high pressure continuing to dominate the weather in the region [4][5]. Health Risks - High humidity and heat can lead to health risks such as heatstroke, with recommendations for the public to seek shade, stay hydrated, and seek medical attention if symptoms worsen [6].

Core Viewpoint - The recent hot and humid weather in Beijing has sparked discussions about it resembling the "return of the southern rainy season," but meteorological data indicates a different cause for the discomfort [1][4]. Group 1: Weather Conditions - On July 3, Beijing recorded a temperature of 28.5°C with a humidity level of 83%, contrasting with Guangzhou, which had a temperature of 33.6°C and a humidity of 60% [1][4]. - The phenomenon referred to as "return of the southern rainy season" typically occurs from February to April in southern regions, while the current weather in Beijing is attributed to the subtropical high pressure leading to a "sauna-like" environment [4]. Group 2: Meteorological Analysis - The subtropical high pressure has moved northward, bringing moist summer winds to northern regions, resulting in increased humidity and frequent rainfall in Beijing [4]. - Meteorological departments have warned that high humidity and heat can lead to heatstroke, advising the public to recognize symptoms and seek relief [4].