Weather Impact on Agriculture - The province is expected to experience strong convective weather, including heavy rainfall and high temperatures, which poses risks to summer crops like corn and soybeans, as well as kiwifruit [1] - High temperatures combined with drought conditions may adversely affect corn pollination, leading to poor grain development, while kiwifruit may suffer from sunburn and wilting leaves [1] - Recommendations include early drainage preparations in low-lying farmland, timely irrigation in high-temperature areas, and enhanced moisture management in kiwifruit orchards [1] Infrastructure and Power Load Concerns - The cumulative rainfall in northern Shaanxi, combined with expected heavy rainfall, increases the risk of secondary disasters such as flash floods and landslides along highways and railways [2] - Authorities are advised to strengthen inspections of critical road segments and implement traffic controls if necessary [2] - Power load in the Guanzhong region is projected to be 15% to 40% higher than the same period in previous years, necessitating careful management of electricity and water supply [2]

中高层的干冷空气叠加在低层暖湿空气上形成不稳定层结，为强对流发展提供了能量。当前，北方冷空 气活动较盛夏更为频繁，中高层冷空气的渗透不仅直接关联大风和冰雹的形成，还加剧了对流的不稳定 性，使得强对流天气强度更强、表现更为突出。 盛杰表示，夏季尚未结束，副热带高压仍稳定控制中东部，其边缘环流持续向北方输送充沛的暖湿气 流。与此同时，冷空气活动增强，冷暖空气在北方地区的交汇更为清晰和直接，为强对流提供了充足 的"燃料"。 新华财经北京8月18日电（记者黄垚）据中央气象台预报，未来一周青海东部、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气，部分地区伴有短时强降水、雷暴大风或冰雹等强 对流天气。 强对流包括雷暴、短时强降水、大风、冰雹等天气现象。当下层空气温度较高、高层空气温度较低时， 下面的热空气就像沸腾起来的热水，一旦有冷空气来袭，触发条件，就会引发强对流。春夏季尤其是午 后时段，通常是强对流天气高发期。 "中层冷空气趋于活跃是近期北方强对流天气频发的关键。"国家气象中心强天气预报中心副主任盛杰 说，夏季南方受副热带高压控制，冷空气难以深入，但北方作为冷空气活动的主要"基地"，中层能明显 感 ...

Group 1 - Southern China is experiencing strong rainfall due to the influence of a tropical depression in the South China Sea and monsoon airflow, with areas like Inner Mongolia, Shanxi, Shandong, Sichuan, Guangdong, and Hainan facing heavy rain and localized torrential downpours [2][3] - The tropical depression is located approximately 310 kilometers south of Dongxing City, Guangxi, with maximum wind force of 7 levels, and is expected to move north-westward towards the Guangxi coast at a speed of 10 to 15 kilometers per hour [2] - The Central Meteorological Observatory predicts heavy rain in various regions including southern and western Guangdong, central and southern Guangxi, and parts of Inner Mongolia and the Northeast [3] Group 2 - The eastern and northern regions of China will continue to experience frequent strong convective weather, with areas like Qinghai, Gansu, Northeast China, and northern Inner Mongolia facing rain showers or thunderstorms, including short-term heavy rainfall and severe weather conditions [2][4] - The cumulative rainfall in Southern China has been significant, leading to saturated soil moisture levels, which raises concerns about geological disasters such as flash floods and landslides [6] - The last day of the "Sanfu" period is marked by high temperatures across central and eastern China, with regions like Jiangnan, Jianghuai, and Huanghuai expected to experience prolonged high-temperature weather, with some areas reaching temperatures above 40°C [7]

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]

雨水已进城。目前，北京已有多区降雨猛烈，并伴随大风、雷电等强对流天气。气象部门表示，西部北 部已出现短时强降雨，密云出现局地暴雨。据统计，从12日8时至15时，全市平均降水量3.1毫米，城区 平均0.5毫米，最大降水量出现在密云花园村53.9毫米。 全 市暴雨蓝色、大风蓝色预警生效中。怀柔区升级发布暴雨橙色预警信号，朝阳、平谷、密云区发布冰雹 黄色预警，顺义、平谷、通州、朝阳区升级发布暴雨黄色预警。此次降雨会对今天晚高峰及明天早高峰 交通造成明显影响，请公众合理安排出行，随身携带雨具，注意交通安全，尽量绕行低洼易积水路段。 （北京日报微信公众号） ...

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]

来看具体动向，据中央气象台消息，台风"杨柳"（强热带风暴级）的中心周一下午5点钟位于台湾 台东市偏东方向大约1110公里的西北太平洋洋面上，预计"杨柳"将以每小时25-30公里的速度向偏西方 向移动，强度逐渐加强，最强可达强台风级（42-48米/秒，14-15级），并向台湾东南部沿海靠近，将于 13日中午前后在上述沿海登陆（台风级或强台风级，38-45米/秒，13-14级），穿过台湾岛后进入台湾海 峡，强度逐渐减弱，向福建南部到广东东部一带沿海靠近。 由于"杨柳"个头较小，未来路径和强度预报仍具有不确定性。中国天气网首席气象分析师信欣介 绍，台风"杨柳"大概率在13日白天先登陆台湾，13日夜间至14日凌晨再登陆福建。如果台风强度发展超 预期，路径也可能向西向南调整，擦过台湾南部直奔粤东；反之如果台风弱于预期，也可能从台湾北部 擦过，直奔浙江。 由此看来，台风"杨柳"或将两次登陆我国，不过目前"杨柳"距离我国较远，风雨影响还未显现。随 着它逐渐靠近台湾东部沿海，周二夜间起，台风雨将进入核心影响时段。对浙江而言，周三开始，东南 沿海地区将出现阵雨或雷雨天气，部分可达中雨的量级，有雷雨地区局地可伴有短时暴雨和8-1 ...