11月11日10时，中央气象台继续发布台风黄色预警，预计今年第26号台风"凤凰"将于12日下午到夜 间在台湾岛西南部沿海再次登陆。此前，"凤凰"已于9日以超强台风级别登陆菲律宾，造成严重破坏。 立冬节气已过，为何仍有台风生成并影响我国？此时的台风有何特点？针对公众关切，科技日报记者采 访了中央气象台相关专家。 专家提醒，受台风影响，未来三天，我国东部和南部海区、华东和华南沿海将有持续大风。福建东 南部、台湾岛东部和南部将有大到暴雨，其中台湾岛东北部和东南部地区有大暴雨。公众需重点防范强 降雨可能引发的山洪、地质灾害及城市内涝，提前加固房屋、疏通排水设施，危房人员应及时转移。 （来源：科技日报 作者：付丽丽 责任编辑：张明禄） 许映龙同时指出，根据目前监测，除"凤凰"外，近期西北太平洋和南海生成台风的可能性较小。 如2013年第30号台风"海燕"，中心附近最大风力达到17级以上，是当年的全球"风王"，给菲律宾、 越南及我国华南沿海带来了灾难性影响。菲律宾因灾死亡6300人、失踪1061，越南因灾死亡10人、失踪 4人，经济损失高达20亿美元以上。 对于公众提出的"冬台风"说法，许映龙予以澄清。他表示，中央气象台 ...

Group 1 - Typhoon "Bolaoi" is expected to impact Hainan, Guangxi, and other regions in southern China, following the recent Typhoon "Hagupit" [3][4] - "Bolaoi" made landfall in the eastern coastal area of the Philippines with a maximum wind force of 12 levels (33 m/s) and has since weakened to a strong tropical storm level with a maximum wind force of 11 levels (30 m/s) [3] - The Central Meteorological Observatory indicates that the sea temperature in the northern and central South China Sea remains high, providing ample energy for the typhoon's development [3][5] Group 2 - The occurrence of typhoons in autumn is not uncommon, with an average of 10.7 autumn typhoons generated each year from September to November, of which 2.3 typically make landfall in China [5] - The stable atmospheric circulation in autumn, combined with high sea temperatures and active southwest monsoon, contributes to the frequent generation of typhoons during this season [5] - Recent weather patterns, including active southwest monsoon and high sea temperatures, have led to a dense formation of typhoons in the region [5]

Group 1 - Typhoon "Haikashan" made landfall in Guangdong's Yangjiang on September 25, causing short-term heavy rainfall in Zhejiang and coastal areas due to its outer circulation and weak cold air influence [1] - Following the typhoon's westward movement, temperatures are expected to rise, with some areas experiencing high temperatures from September 25 to 28, particularly in Lishui and Quzhou, which may see temperatures reaching 34°C [1] - Despite the arrival of the autumn equinox, the cool autumn weather is still distant, as the high temperatures are set to return in the coming days [1] Group 2 - Rain showers and thunderstorms are expected to be prevalent across the province until early October due to frequent high-altitude trough activities [2] - From September 28 to 29, the province will experience cloudy weather with scattered afternoon thunderstorms, followed by continued rain activity from September 30 to October 2 [2] - The 20th typhoon "Bolaven" has formed east of the Philippines and is expected to move northwest into the South China Sea, but it will not impact Zhejiang [2]

Core Viewpoint - The article discusses the impact and development of Typhoon "Hagupit," highlighting its current status, expected trajectory, and the response measures taken by various regions in Guangdong province [1][3][4]. Group 1: Typhoon Status and Trajectory - As of 14:00 today, Typhoon "Hagupit" has weakened to a strong typhoon level, with maximum wind speeds of 50 m/s (approximately 180 km/h) [1]. - The typhoon is expected to make landfall in the coastal areas between Yangjiang and Zhanjiang in Guangdong on the evening of the 24th, maintaining its strength as a typhoon or strong typhoon during landfall [3]. Group 2: Regional Response Measures - The Guangzhou Flood Control and Drought Relief Headquarters announced the termination of the "Five Stops" measures (suspension of classes, work, production, business, and transportation) effective from 18:00 on September 24 [5]. - Other regions, including Chaozhou, Shanwei, and Dongguan, have also lifted similar measures in response to the diminishing impact of Typhoon "Hagupit" [5][6]. Group 3: Frequency of Autumn Typhoons - The article notes that the occurrence of typhoons in autumn is not uncommon, with an average of 10.7 autumn typhoons generated each year from September to November, of which 2.3 typically make landfall in China [8]. - Factors contributing to the frequency of autumn typhoons include high sea temperatures from summer heating, stable atmospheric circulation, and active southeast airflows bringing moisture to typhoon formation areas [8][10].

Group 1: Typhoon "Hagupit" Impact - Typhoon "Hagupit" is expected to be one of the most severe typhoons affecting China this year, with landfall predicted between Huizhou, Guangdong, and Wenchang, Hainan on September 24 [1][2] - The maximum wind speed of "Hagupit" is forecasted to exceed 62 meters per second, with significant wind and rain expected from September 23 to 26 across various regions including Guangdong, Guangxi, and Hainan [2][3] - The combination of strong winds, heavy rainfall, and astronomical tides may lead to seawater backflow in the Pearl River Estuary area [3] Group 2: Typhoon Characteristics - The occurrence of strong typhoons like "Hagupit" in autumn is not rare, with historical examples including super typhoons "Xiaoqiu" in 2023 and "Aolu" in 2022 [4] - Autumn is conducive to the formation of powerful typhoons due to high sea temperatures and favorable atmospheric conditions, which enhance typhoon intensity [4] Group 3: Disaster Preparedness Measures - The Ministry of Transport has raised the typhoon defense response to Level II, and local governments are implementing various preventive measures including school closures and halting operations in affected areas [5][6] - Specific measures in Zhuhai include ensuring fishing vessels return to safe harbors and advising residents to prepare for potential flooding and strong winds [6] Group 4: Future Weather Implications - Current forecasts indicate that "Hagupit" will primarily impact southern coastal regions, with uncertain effects on northern areas [7] - Following "Hagupit," additional typhoons may enter the South China Sea, potentially affecting travel during the upcoming National Day holiday [8]

Group 1 - The core viewpoint of the article highlights the imminent threat posed by Typhoon "Hagupit," which is expected to impact the South China Sea and Guangdong province with severe wind and rain, necessitating disaster preparedness measures [1][3][10] - Typhoon "Hagupit" is classified as a super typhoon with maximum wind speeds reaching 60 meters per second and a central pressure of 920 hPa, indicating its potential for significant damage [1][3] - The typhoon's path is influenced by various meteorological factors, including sea surface temperatures above 28°C and the weakening of the subtropical high-pressure system, which may lead to multiple landfall possibilities along the Guangdong coast [3][5] Group 2 - The article discusses the characteristics of autumn typhoons, noting that they tend to be more intense and have a greater impact compared to summer typhoons, with a significant number of autumn typhoons making landfall in southern regions like Guangdong [7][8] - The combination of warm sea temperatures and the increasing activity of cold air during autumn contributes to the heightened intensity and destructive potential of these typhoons, leading to severe weather events [8][10] - The potential for extreme weather events is emphasized, particularly the risk of heavy rainfall and secondary disasters in regions like Guangdong and southeastern Fujian due to the interaction between Typhoon "Hagupit" and cold air masses [10]

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 - Typhoon "Mina" has intensified to a strong tropical storm level and is expected to make landfall in the coastal area between Shanwei and Shenzhen in Guangdong on the evening of the 19th [1] - The maximum wind force near the center of "Mina" is at level 10, with a movement speed of approximately 10 kilometers per hour towards the northwest [1] - After landfall, "Mina" is expected to gradually weaken as it moves westward [1] Group 2 - Maritime departments in Guangdong and Fujian have activated emergency responses to address the impact of Typhoon "Mina" [2] - Guangdong Maritime Bureau has initiated a level two emergency response, halting 60 ferry routes and evacuating over 2000 people from 35 offshore wind power platforms [4] - All leisure vessels and yachts in Shenzhen waters have returned to port for safety [4] Group 3 - The Fujian Maritime Bureau has launched a level four emergency response, focusing on the city of Zhangzhou, and has deployed 4 rescue helicopters and 111 tugboats for emergency readiness [6] - Strong winds of 6-7 levels and heavy rain are expected in southern Fujian on the 19th and 20th [6] Group 4 - Two additional typhoons or tropical depressions are forecasted to form, with one potentially affecting the northern South China Sea and the southern coast from the 23rd to the 25th [7] - The phenomenon of typhoons occurring in autumn is explained, noting that while summer sees more typhoons, autumn typhoons can be stronger [10] Group 5 - Historical data shows that from 1949 to 2023, autumn typhoons have favored landing in Guangdong, Hainan, Taiwan, and Fujian, with Guangdong being the most frequent landing site [13] - On average, 10.7 typhoons form in autumn each year, with 2.33 making landfall in China, while summer averages 11.07 typhoons with 4.73 making landfall [10]

Core Viewpoint - Typhoon "Jianyu" has intensified to a strong typhoon level, impacting Hainan with severe wind and rain, prompting multiple cities and counties to initiate emergency responses to mitigate risks such as flooding and geological disasters [1][3]. Group 1: Typhoon Characteristics - Typhoon "Jianyu" is characterized by its rapid movement, with expectations of it passing near the coast from Sanya to Ledong in the evening to night of the 24th [1]. - The typhoon's path resembles that of summer typhoons, influenced by the subtropical high pressure, moving predominantly westward [5]. - The central meteorological authority indicates that the main circulation of the typhoon will increasingly affect the southern coastal areas of Hainan, with significant rainfall expected [3][5]. Group 2: Historical Context and Impact - Historically, August is an active period for tropical cyclones in Hainan, but landfall events are relatively rare; strong typhoons are even less common [7]. - If "Jianyu" makes landfall in Sanya as a strong typhoon (42 m/s), it could become the strongest typhoon to hit the area in nearly 40 years, approaching historical intensity records [9].

Core Viewpoint - Typhoon "Jianyu" is currently a strong typhoon with maximum wind speeds of 38 m/s and is expected to continue moving northwest at a speed of approximately 20 km/h, with potential for further intensification [1][4]. Group 1: Typhoon Characteristics and Movement - Typhoon "Jianyu" is located about 150 kilometers southeast of Sanya, Hainan, and has maintained a fast-moving characteristic, averaging 24 km/h since entering the South China Sea [1]. - The typhoon's structure is tight and complete, indicating that its intensity is unlikely to weaken significantly, regardless of whether it makes landfall or passes near Hainan [4]. - The expected trajectory suggests that "Jianyu" will likely pass close to the southern coast of Hainan, with a possibility of landfall between Sanya and Ledong [4]. Group 2: Weather Impact and Precautions - The typhoon is expected to bring heavy rainfall to Hainan, with areas like Yongxing Island experiencing extreme rainfall of 503.1 mm [1]. - Coastal regions are advised to prepare for strong winds and heavy rain, particularly in southern Hainan and mountainous areas, where localized heavy rainfall and secondary disaster risks should be monitored [4]. - The outer spiral rainbands of "Jianyu" are anticipated to affect regions such as the western and northern Sichuan Basin, necessitating attention to hydrological and geological disaster risks [4]. Group 3: Seasonal Classification - Typhoon "Jianyu," generated at the transition between summer and autumn, exhibits characteristics more akin to summer typhoons, primarily influenced by the subtropical high pressure [5]. - Autumn typhoons typically have more complex paths due to the weakening of the subtropical high, which is not the case for "Jianyu" [5]. Group 4: International Cooperation - The China Meteorological Administration has enhanced communication with Vietnam's meteorological authorities to jointly monitor and prepare for the impacts of Typhoon "Jianyu" as it approaches Vietnam's central and northern coasts [6][7]. - The collaboration includes sharing critical forecast information regarding the typhoon's path and potential intensity upon landfall in Vietnam [7].