Core Viewpoint - Hainan Island is expected to experience heavy to extremely heavy rainfall from November 3 to 4, influenced by an easterly airflow, with significant impacts anticipated from Typhoon "Haikui" [1][2] Weather Forecast - From November 3 to 4, areas in eastern and central Hainan Island are forecasted to receive heavy to extremely heavy rainfall, while other regions will experience moderate to heavy rain [1] - The weather monitoring indicates that a new round of widespread rainfall began on November 2, with coastal areas around Hainan Island experiencing gusts of wind exceeding 7 levels [1] Typhoon "Haikui" Details - Typhoon "Haikui," classified as a strong tropical storm, was located at latitude 10.8°N and longitude 128.8°E on November 3, with maximum wind speeds of 11 levels (30 m/s) near its center [1] - The typhoon is expected to move westward at approximately 20 km/h, passing through the central Philippines on November 4 and entering the southeastern South China Sea on November 5, with its intensity gradually increasing to a strong typhoon level (42-50 m/s, 14-15 levels) [1] Impact on Maritime Operations - From November 5 to 7, the South China Sea's central and southern regions are expected to experience wind speeds of 9-12 levels and gusts of 13-15 levels due to Typhoon "Haikui," with strong wind and rain conditions affecting the Nansha, Zhongsha, and Xisha Islands [2] - Hainan's meteorological department has advised local authorities to monitor rainfall accumulation and manage safety measures for reservoirs and geological disaster risk points [2]

Summary of Key Points Core Viewpoint - The article discusses the weather conditions in China, highlighting the weakening of rainfall in the southern regions and the impending arrival of a strong cold air mass from the west, which will affect various parts of the country starting November 5 [1][6]. Weather Conditions - Rainfall is currently concentrated in the southwestern to Jiangnan and southern China regions, with expected moderate to heavy rain in areas such as central and western Yunnan, central and southern Guizhou, southern Hunan, southern Jiangxi, eastern Guangxi, western Guangdong, and southeastern Hainan [2][6]. - The rainfall is predicted to significantly decrease in the aforementioned areas starting tomorrow [2]. Cold Air Mass Impact - A strong cold air mass is forecasted to move from west to east across China from November 5 to 9, initially impacting regions like Xinjiang, western Qinghai-Tibet Plateau, and western Inner Mongolia, leading to temperature drops of 6 to 8 degrees Celsius, with some areas experiencing drops of 10 to 16 degrees Celsius [9]. - Accompanying this cold air mass, there will be winds of 4 to 6 levels, with mountain passes experiencing winds of 8 to 9 levels and gusts reaching 10 to 11 levels [9]. Snowfall and Weather Warnings - The cold air mass will bring light to moderate snow or sleet in northern Xinjiang, with high-altitude areas expecting heavy to extreme snowfall, adding 8 to 12 centimeters of snow, and locally up to 15 to 22 centimeters [9]. - Public advisories are issued to monitor weather forecasts and prepare accordingly for the changing conditions [9].

Summary of Key Points Core Viewpoint - The article discusses the recent weather conditions in China, particularly focusing on the occurrence of dense fog in several regions, the expected changes in weather patterns, and the implications for air quality and temperature fluctuations. Group 1: Weather Conditions - Multiple regions including Beijing, Tianjin, Hebei, Henan, Shandong, Jiangsu, Anhui, and Hubei experienced dense fog, with visibility dropping below 50 meters in areas like Tongzhou, Dezhou, Shangqiu, Bengbu, and Huainan [1][3] - A red alert for fog was issued in Julu County, Hebei, indicating severe visibility issues [3] Group 2: Future Weather Predictions - Following the fog, the weather is expected to improve due to sunlight and weak cold air, with no significant smog forecasted for the next few days [3] - However, from November 4 to 7, the air quality in North China and the Huanghuai region is predicted to deteriorate again, leading to the return of fog and haze [5] Group 3: Temperature Trends - The temperature in central and southern North China is currently around or above 20°C, marking a recent high [8] - A significant drop in temperature is anticipated next week due to a strong cold air mass, with expected decreases of 4 to 8°C in many areas, and localized drops exceeding 10°C [8] Group 4: Rainfall and Flood Risks - From November 2 to 4, heavy rainfall is expected in the eastern Southwest, central and southern Jiangnan, eastern Guangxi, western Guangdong, and Hainan, with cumulative precipitation reaching 30 to 80 millimeters, and localized areas in Yunnan and Hainan potentially exceeding 200 millimeters [9][13] - The rainfall may lead to significant flooding risks in certain regions, particularly in Yunnan and southern Sichuan, where the rainfall could surpass the total for the entire month of October [13] Group 5: Tropical Weather Developments - The Japan Meteorological Agency has classified a tropical disturbance east of the Philippines as a tropical depression, which is expected to develop into Typhoon "Haigui" by November 5, with potential impacts on the South China Sea [14]

10月19日至21日，冷空气继续东移南下，中东部地区气温普遍下降4~8℃，局地降温达10℃以上。北方 多地气温创今年下半年新低。20日早晨，北京南郊观象台最低气温降至-0.5℃。沈阳、银川等城市气温 立秋后首次跌破冰点，上海、杭州、南昌等地气温则立秋后首次跌破20℃。 智通财经记者 贝佳媛 综合报道 这两天，一股冷空气让北方多地寒意阵阵。据中央气象台预报，未来几天较强冷空气将继续影响我国， 大部地区将出现今年下半年以来最低气温。 10月19日，黑龙江哈尔 滨下起大雪，纷纷扬扬的雪花从空中飘落。 冷空气席卷全国，南北冷暖急转 本周，今年下半年以来最强冷空气持续影响我国，中东部地区迎来明显大风降温和降水过程。这波冷空 气使长江以北多地气温较常年同期显著偏低。南方地区则由前期气温显著偏高转为偏低。 10月19日，黑龙江哈尔 10月19日，北京迎大风 滨，随着北方气温的急剧下降，哈尔滨迎来鹅毛大雪。 寒潮天气，游客穿厚实冬装在寒风中游览颐和园。 冒着大风在外滩观光观景台游览。 台风"风神"助攻 10月18日，上海，游客 今年第24号台风"风神"与冷空气联手，加剧了我国东部和南部地区的气温波动。"风神"虽不登陆我国， ...

截至19日16时，福建沿海共有55条客渡运航线、120艘客渡船停航。 琼州海峡客滚运输将于20日14时停运，预计影响时间到23日上午。此外，海南铁路部分进出岛列车 20日到22日停运。 央广网北京10月20日消息（记者李思默）据中央广播电视总台中国之声《新闻和报纸摘要》报道， 本周，冷空气继续影响我国，南北气温维持偏低状态，预计最低气温0℃线将南压到华北中部至陕西北 部、甘肃东部一带。 中央气象台首席预报员陈博宇：这次较强冷空气还会继续向南推进，影响我国的中东部地区，带来 4至6摄氏度的降温，尤其是江南的东部和南部、华南地区以及贵州南部的部分地区降幅可能会有8摄氏 度左右。公众要注意防寒保暖。 与此同时，今年第24号台风"风神"正联合冷空气给华南沿海等地带来风雨影响。 预计21日白天开始，"风神"移动速度减慢，并在冷空气压制下逐渐转偏南方向移动，路径大幅折向 西南，基本不会登陆我国。 ...

中央气象台今晨继续发布大风黄色预警。预计未来24小时，新疆北部和东部、西藏西部、青海西南部、 甘肃河西、内蒙古西部和东部、黑龙江东部、吉林东部、山东半岛、江苏大部、安徽南部、江西北部、 广东南部、广西南部等地部分地区有5~6级风，阵风7~8级。 同时，东海南部海域、台湾海峡、南海北部和中部海域及浙江南部沿海、福建沿海、广东东部沿海将有 9~10级、阵风11~12级的大风，其中南海中部的部分海域风力可达11~12级、阵风13~14级。黄海大部海 域、东海北部海域、巴士海峡、台湾以东洋面、北部湾将有7~8级、阵风9级的大风。 今天，南方大部依旧维持阴雨天气。新疆沿天山西部、西藏东北部、青海东南部、川西高原北部、山西 北部等地部分地区有小到中雪或雨夹雪；陕西中部、湖北中部和西南部、四川东部和南部、重庆西部、 云南北部、福建东部、广东东南部沿海、台湾岛等地部分地区有中到大雨，其中，台湾岛东北部等地部 分地区有暴雨或大暴雨。 来源：中国新闻网 北方大部气温低迷 台风"风神"进入南海 中新网10月20日电 据中央气象台网站消息，在冷空气的影响下，今晨，气温0℃线抵达华北中部一带， 北京南郊观象台最低气温达到-0.5℃，为 ...

Group 1 - The 24th typhoon "Fengshen" is moving northwest at a speed of approximately 35 kilometers per hour and has entered the South China Sea, potentially reaching strong tropical storm or typhoon level (30-35 m/s, level 11-12) [1] - The Qiongzhou Strait passenger and roll-on/roll-off transport will cease operations on October 20 at 14:00, with expected impact lasting until the morning of October 23 [2] - Haikou's transportation and port management authority announced that Haikou New Port, Xiuying Port, and Railway South Port will stop operations starting from October 20 at 14:00, advising passengers to arrive at least 1 to 2 hours early for ticket inspection [2]

来源：中国新闻网 "风神"叠加冷空气 将给海南岛带来强风雨及明显降温 编辑：熊思怡 中新网海口10月19日电 (许嘉 李凡 吴春娃)海南省气象台19日发布预报称，受今年第24号台风"风神"和 南下冷空气共同影响，海南岛多地将出现较强风雨天气，气温明显下降。 广告等商务合作，请点击这里 据监测，"风神"(热带风暴级)19日08时其中心位于北纬14.0度、东经121.4度，也就是在菲律宾吕宋岛 上，中心附近最大风力8级(20米/秒)，七级风圈半径150～180公里。 气象部门预计，"风神"将以每小时30～35公里的速度向西北方向移动，今天傍晚前后进入南海东部海 面，强度逐渐加强，最强可达强热带风暴级或台风级(30～35米/秒，11～12级)；21日白天开始受南下冷 空气影响，在南海北部海面转向西南方向移动，向海南岛东南部海面靠近，强度逐渐减弱。 海南省气象台预计，受"风神"和冷空气共同影响，19日夜间～23日南海中部、北部海面和海南省大部分 海域自东向西将有强风雨天气。 21日～23日，海南岛东半部地区有大到暴雨、局地大暴雨，西半部地区有中到大雨；全岛最高气温从19 日的29～32℃下降至21～25℃；最低气温从 ...

西南等地阴雨持续 台风"风神"靠近华南沿海风雨渐增 昨天，随着冷空气南下，主雨带南压、减弱，西南到江淮、江南等地出现降雨，云南等地部分地区雨势 较强。监测显示，浙江中南部、江西北部、湖北东南部、湖南南部、贵州西部和东北部、云南中部和东 北部、四川南部等地出现分散性大雨或暴雨，四川攀枝花等局地大暴雨。 今明两天，西南地区东部、西北地区东南部、黄淮西部、江淮等地还会有阴雨天气，以小到中雨为主， 西藏东部、青海南部等地将有小到中雪或雨夹雪。 此外，随着今年第24号台风"风神"逐渐靠近，未来几天台湾、福建、广东等地降雨将会陆续增多。"风 神"将以每小时30-35公里的速度向西北方向移动，今天傍晚前后进入南海东部海面，强度逐渐加强，最 强可达强热带风暴级或台风级。 具体来看，中央气象台预计，今天，内蒙古东北部、黑龙江西南部、西藏中部和东部、青海南部和西 部、甘肃西南部、川西高原北部等地部分地区有小到中雪或雨夹雪，其中，青海南部、川西高原北部等 地部分地区有大到暴雪。甘肃南部、陕西中南部、四川东北部和南部、云南西部和北部、台湾岛等地部 分地区有中到大雨，其中，台湾岛中北部等地部分地区有暴雨或大暴雨。 央视网消息：据中国天 ...

Core Points - Continuous rainy weather in Shaanxi Province since September has led to the growth of moss on sections of the Xi'an City Wall, particularly between Yongning Gate and Wenchang Gate, attracting public attention [1] - Experts indicate that the moss is only growing on the surface of the wall and does not penetrate deeply, thus not damaging the structural integrity of the wall [3] - The local meteorological department reported that the cumulative rainfall in many areas of Shaanxi has reached historical highs for this period, with six regional heavy rain events recorded, ranking second since 1961 [7] Weather Conditions - The persistent rainy weather is attributed to the stable presence of the subtropical high pressure in the Huaxi-Huanghuai region, with Shaanxi located in a warm and humid airflow zone, combined with multiple short-wave troughs from the westerly wind belt [5] - The local meteorological department forecasts intermittent rainfall in most of Shaanxi on the 15th, with a return to rain on the 16th and 17th, but a significant reduction in rainfall intensity is expected after the 20th [9]