来源：中国天气网 8月20日以来，受副热带高压外围暖湿气流和高空槽引导冷空气南下的共同影响，西南地区至 华北、东北等地出现强降雨。监测显示， 昨天8时至今天6时，云南北部、四川盆地西南部、 陕西南部、山西中南部、河南北部、山东北部、辽宁东北部等地的部分地区出现大雨或暴 雨，云南丽江、四川眉山和内江、河南郑州和焦作、辽宁丹东等局地大暴雨。 未来五天， 西南地区、西北地区东部、华北、东北等地降雨依然频繁，部分地区伴有短时强 降水、雷暴大风或冰雹等强对流天气 。另外，今年第13号台风"剑鱼"可能于今天下午至傍晚 在海南陵水到乐东一带沿海登陆，受其影响，今明两天海南多地雨势猛烈。 其中今天，东北等地将为降雨核心影响区域，中央气象台预计， 海南岛、广东西南部沿海、 广西南部沿海、云南西北部、四川盆地西部和北部、河南中南部、安徽北部、江苏北部、山 东中部、辽宁东部、吉林东部以及新疆沿天山等地的部分地区有大到暴雨，其中，海南岛中 南部、四川盆地西部、辽宁东北部、吉林东南部等地的部分地区有大暴雨，海南岛东南部等 地局地特大暴雨。 明天， 内蒙古西部、东北地区东南部、青海东部、甘肃河西、陕西南部、四川盆地西北部、 河南东部、安 ...

央视网消息：据中国天气网，今明两天（8月18日至19日），华南仍将有强降雨现身，与此同时北方也 将维持多强对流天气的格局。此外，虽然三伏即将结束，但未来10天中东部高温仍将盛行，并且多地闷 热感十足，体感温度会很高。 昨天，受南海热带低压和季风气流共同影响，华南部分地区出现强降雨；与此同时，华北、黄淮部分地 区有强对流天气出现，局部地区降雨较强。监测显示，内蒙古中部、山西东南部、山东中东部、四川东 部及广东南部、海南岛等地部分地区出现大到暴雨，内蒙古呼和浩特、山东临沂和淄博、四川成都和乐 山、广东江门等局地大暴雨。 南海热带低压持续影响华南 华北东北强对流天气仍然频繁 今天早晨5点钟，南海热带低压位于广西东兴市偏南方约310公里的近海海面上，中心附近最大风力有7 级。预计，该低压将以每小时10到15公里的速度向北偏西方向移动，并逐渐向广西沿海靠近。在该低压 与季风气流的共同影响下，今天广西、广东等地将有强降雨出现。明天，广东降雨将有所减弱，但广西 等地仍会有强降雨出现。 而在华北、东北、西北地区东部等地，未来几天强对流天气仍将较为频繁，青海东部、甘肃中东部、东 北地区、华北中北部、内蒙古中东部多阵雨或雷阵雨天 ...

Core Viewpoint - The Central Meteorological Observatory lifted the blue alert for severe convective weather due to the reduction in both the range and intensity of such weather conditions [1] Summary by Relevant Sections - **Weather Forecast**: From 20:00 on August 17 to 20:00 on August 18, areas including central and eastern Inner Mongolia, northeastern and southern Qinghai, central and southeastern Gansu, northern and central Shanxi, northern Hebei, northern Shandong, central Sichuan, northeastern Guangxi, and southern Guangdong are expected to experience localized thunderstorms with wind speeds of 8-9 levels or hail [1] - **Precipitation**: Certain regions in Inner Mongolia, western Xinjiang, northeastern and southern Qinghai, southern Gansu, northern Shaanxi, northern and central Shanxi, northwestern and southeastern Hebei, central and northern Shandong, southern Hunan, southern Fujian, central and southern Sichuan, southeastern Guizhou, southwestern Yunnan, southwestern and central-eastern Guangxi, Guangdong, Hainan Island, and central-southern Taiwan are forecasted to have short-term heavy rainfall, with hourly precipitation ranging from 20 to 50 millimeters, and localized areas exceeding 70 millimeters [1]

Group 1 - The Central Meteorological Observatory issued a blue alert for severe convective weather, predicting strong thunderstorms and hail in various regions from August 17 to August 18 [1] - Areas such as central and eastern Inner Mongolia, eastern Shandong, and southern Guangdong are expected to experience wind speeds exceeding level 10, while other regions may see short-term heavy rainfall with hourly rates exceeding 20 mm [1] - Specific regions, including central Inner Mongolia, southern Hebei, and southeastern Guangxi, may experience hourly rainfall exceeding 50 mm, with maximum rates potentially reaching over 60 mm [1] Group 2 - The government and relevant departments are advised to prepare for short-term heavy rain, thunderstorms, and strong winds, including artificial hail prevention measures [4] - Outdoor activities should be minimized, and individuals are advised to stay away from temporary structures and billboards [4] - Precautions include moving livestock to sheltered areas, securing windows and doors, and ensuring drainage systems are ready to handle potential flooding and landslides [4]

Group 1 - The Central Meteorological Observatory issued a blue warning for severe convective weather, predicting strong thunderstorms and hail in various regions from August 16 to August 17 [1] - Areas expected to experience wind speeds above level 8 include central and western Inner Mongolia, central Northwest China, southern North China, northern Huanghuai, eastern Southwest China, and southern South China, with some regions in Shandong expected to see winds above level 10 [1] - Heavy rainfall is anticipated, with hourly precipitation exceeding 20 mm in several areas, and some regions in Liaoning, northern and eastern Shandong, and southern Guangdong may see hourly rainfall exceeding 50 mm, potentially reaching over 70 mm [1] Group 2 - The government and relevant departments are advised to prepare for short-term heavy rain, thunderstorms, and strong winds, with meteorological departments preparing for artificial hail prevention [4] - Outdoor activities should be minimized, and individuals should stay away from temporary structures and billboards [4] - Livestock should be moved to covered areas, and windows and doors should be secured to protect against severe weather [4]

Core Points - The Central Meteorological Observatory issued a blue alert for severe convective weather, predicting strong thunderstorms and hail in various regions from August 16 to August 17 [1] - Areas such as southern Hebei and northern Shandong may experience wind speeds exceeding level 10, while other regions could see short-term heavy rainfall exceeding 20 mm per hour, with some areas reaching over 50 mm, and potentially up to 70 mm [1] Summary by Category Weather Forecast - Severe convective weather is expected in regions including central and western Inner Mongolia, central and eastern Northeast China, southern North China, northern Huanghuai, eastern Southwest China, and southern South China [1] - The main impact period for severe weather is anticipated to be from afternoon to night [1] Defense Guidelines - Government and relevant departments should prepare for short-term heavy rain, thunderstorms, and strong winds, with meteorological departments readying for artificial hail prevention [4] - Outdoor activities should be minimized, and individuals should stay away from temporary structures and billboards [4] - Livestock should be moved to covered areas, and windows and doors should be secured [4] - Water operations and passing vessels should take measures to return to port or navigate around affected areas, while construction sites should protect materials from severe weather [4] - Drainage systems in urban areas, farmland, and fish ponds should be checked and prepared for flood prevention, along with readiness for mountain floods, landslides, and mudslides [4]

Group 1 - The weather in Beijing is expected to experience significant rainfall, with accumulated precipitation reaching moderate to heavy rain, and localized areas may see torrential rain [1][3] - The rainfall is anticipated to be accompanied by strong convective weather, including thunderstorms, short-term heavy rainfall, and gusty winds, with wind speeds reaching 7-8 levels, and localized areas in the mountains exceeding level 10 [3] - A blue warning for heavy rain and strong winds has been issued, advising the public to take precautions against lightning, avoid flooded areas, and stay away from tall buildings and temporary structures [3] Group 2 - The expected rainfall will likely impact traffic during the evening peak hours today and the morning peak hours tomorrow, necessitating careful travel planning and the carrying of rain gear [3] - Continuous rainfall is forecasted from tomorrow through Sunday, with a high risk of secondary disasters such as flash floods, landslides, and mudslides in mountainous and shallow mountainous areas due to cumulative rainfall effects [3] - It is crucial for individuals to monitor warning information and avoid traveling to areas prone to geological disasters to ensure personal safety [3]

Core Viewpoint - The article discusses the ongoing severe weather conditions in various regions of China, including heavy rainfall and strong convective weather warnings issued by the Central Meteorological Observatory. Group 1: Weather Warnings - A yellow rainstorm warning has been issued, predicting heavy to torrential rain in several regions from August 11 to August 12, with specific areas experiencing extreme rainfall of 250 to 280 millimeters [3][5][7] - A blue warning for strong convective weather has also been issued, forecasting wind speeds exceeding 8 levels, with some areas in Inner Mongolia and Hebei experiencing winds above level 10 [5][7] - The main impact period for these severe weather conditions is expected to be from the afternoon to the night of August 11 [8]

Core Points - The Central Meteorological Observatory issued a blue alert for severe convective weather, predicting strong winds and hail in various regions from August 10 to August 11 [1] - Areas such as eastern Inner Mongolia and northwestern Hebei may experience wind speeds exceeding level 10, with maximum wind force potentially reaching above level 11 [1] - Heavy rainfall is expected in several regions, with hourly precipitation exceeding 20 mm, and some areas may see rainfall over 50 mm, potentially reaching 80 mm [1] Summary of Defense Guidelines - Government and relevant departments should prepare for short-term heavy rain, thunderstorms, and strong winds, with meteorological departments ready for artificial hail prevention [4] - Outdoor activities should be minimized, and individuals should stay away from temporary structures and billboards [4] - Livestock should be moved to sheltered areas, and doors and windows should be secured [4] - Water operations and passing vessels should take measures to return to port or navigate around affected areas, while construction sites should cover materials and secure outdoor items [4] - Drainage systems in cities, farmland, and fish ponds should be checked and prepared for flood prevention, along with readiness for mountain floods, landslides, and mudslides [4]

昨天至今晨，四川盆地西部等地强降雨来袭，部分地区出现暴雨或大暴雨，德阳局地遭遇特大暴雨。 今明两天，四川有一次明显降雨过程，并伴有短时强降水、阵性大风等强对流天气，后天降雨将明显减 弱。四川省气象台预计，今天，四川盆地大部阴有雷雨或阵雨，雨量普遍达中到大雨量级，其中雅安、 乐山、眉山、巴中、达州、南充、遂宁、资阳、内江、自贡、宜宾11市和泸州北部、成都东部有暴雨， 局部大暴雨，并伴有短时强降水和阵性大风，局地风力可达8级或以上；川西高原和攀西地区阴天间多 云，有雷雨或阵雨，可达小到中雨量级，局部有大雨到暴雨。 央视网消息：据中国天气网消息，今明两天（8月10日至11日），四川有一次明显降雨过程，其中盆地 大部地区强降雨不断，成都、巴中、宜宾等地局部有大暴雨，并伴有强对流天气，公众需注意防范。 明天，四川盆地大部多云间阴，其中达州、南充、广安、遂宁、资阳、内江、自贡、宜宾、泸州9市和 成都、眉山、巴中3市东部及西部沿山有雷雨或阵雨，部分地区有中到大雨，局部暴雨到大暴雨，并伴 有短时强降水和阵性大风，局地风力可达8级或以上；阿坝州南部、甘孜州西北部南部和攀西地区阴天 间多云，有雷雨或阵雨，其中甘孜州南部和攀西地区 ...