此次冷空气过程对北方降温影响显著，气温都将大面积创立秋后新低，不少地区将告别短袖、翻出外套 了。其中，明天银川、呼和浩特、17日哈尔滨、长春、太原、西安最高气温或将至20℃，18日郑州和西 安最高气温可能降至20℃以下，为立秋后首次全天低于20℃。 17日至18日早晨，北方会有大量城市最低气温创立秋后新低，呼和浩特、哈尔滨、长春、沈阳、太原、 北京、石家庄、西安、银川、济南、郑州最低气温不足15℃，哈尔滨、长春、呼和浩特甚至不足10℃， 秋凉加重，需注意添衣保暖。 而在冷空气影响到来之前，南方多地今明天高温依然强盛，高温范围还会有所扩大，达到近期巅峰。城 市中，南昌昨天刚刚刷新当地全年高温日数纪录（65天），未来3天还将遭连续高温，武汉和杭州未来 三天也将有两到三天高温，都将继续刷新当地全年高温日数最多纪录。福州今后4天高温持续，将创造9 月连续高温日数纪录和9月高温最多纪录。 18日之后，随着冷空气渗透南下，旷日持久的高温过程也将暂告一段落。像是杭州，17日还有高温，18 日将降至26℃，将创立秋后新低，长沙19日最高气温也将降至26℃，热意明显消退。而且江南大部最低 气温将降至25℃以下，夜间体感明显凉快 ...

昨天，我国西南、江南等地部分地区出现较强降雨天气，北方多地强对流出没。监测显示，昨日8时至 今日6时，云南中部和西部、贵州西南部和东北部、重庆东南部、湖南西北部、湖北南部、江西北部、 浙江中南部、上海东部、海南岛及北京南部、河北中部、内蒙古东北部、黑龙江西部等地部分地区出现 大雨或暴雨，云南昆明、贵州铜仁、湖北宜昌和恩施、浙江金华等局地大暴雨；上述地区最大小时降雨 量40至80毫米，浙江金华局地90至119毫米；此外，内蒙古南部、河北北部、北京南部、江西北部等地 部分地区出现8至10级、局地11级雷暴大风或冰雹。 今明天，南方降雨逐步缩减，西南等地部分地区有大雨，局地暴雨。后天起，我国新一轮降水过程发 展，主雨带位于黄淮到四川盆地一带，部分地区有大到暴雨。 具体来看，中央气象台预计，今天，内蒙古东北部、黑龙江北部、吉林中部、辽宁中东部、江苏中南 部、浙江中北部、安徽南部、湖北南部、湖南北部、贵州东北部和西南部、云南西部和东部、西藏南部 等地部分地区有中到大雨，其中，内蒙古东北部、贵州东北部和西南部等地局地有暴雨。 明天，吉林中部、河北南部、山西西北部、山东西部和东部、河南中部和东北部、陕西北部、甘肃南 部、四 ...

Group 1 - The weather in Hangzhou has experienced a significant temperature drop from 39.4°C on September 8 to a maximum of 30.7°C recently, attributed to the influence of cold air and moisture from the southwest [1][2] - Rainfall is expected to be frequent across the province until next Friday (19th), with specific weather patterns indicating systematic rain or thunderstorms from the 16th to 17th [1][2] - The overall high-temperature weather is coming to an end, with the southern regions potentially experiencing isolated high temperatures before a more stable cooler weather pattern sets in [2] Group 2 - Nationwide, rain and cooling trends are dominating the weather scene, with the weakening of the subtropical high pressure contributing to the drop in high temperatures [2] - A new round of strong rainfall is anticipated in northern regions, particularly in Henan and Shandong, which may experience rare heavy rain during this period [2] - The competition between the "autumn tiger" (late summer heat) and cold air is ongoing, with expectations of a noticeable cold air mass moving southward from the 15th to 17th [2]

Core Points - The article discusses the transition of weather during the "White Dew" solar term in China, highlighting the temperature changes and regional variations across the country [1][3][4]. Temperature Distribution - Northern China is experiencing a significant drop in temperature, with daytime highs generally below 20°C and nighttime lows around 0°C, indicating a clear shift towards autumn [4]. - In contrast, southern regions such as Jiangnan and South China are still experiencing summer-like temperatures, with daytime highs exceeding 28°C and nighttime lows above 20°C, suggesting that summer has not yet fully retreated [4][3]. Humidity and Health - The article emphasizes the importance of hydration during the White Dew period, as many regions experience dry weather with relative humidity below 30%, necessitating increased water intake [7][8]. - It also notes that areas with humidity below 50% may experience symptoms of dryness, such as dry throat and skin, making hydration essential for health [8]. Dietary Recommendations - Various traditional foods and drinks are recommended for hydration and health during this season, including silver ear and pear soup, which is noted for its moisturizing properties [10][14]. - Other suggested remedies include Chenpi hawthorn tea and pumpkin millet porridge, both aimed at enhancing hydration and digestion [12][14].

需要提醒的是，近期受降水影响，苏城气温有所回落，但空气湿度较大，闷热感依然明显，市民可 多关注预报预警信息，防范强对流天气带来的不利影响。 立秋以来，气温的"冲劲"好像更足了。受副热带高压控制，苏城前段时间几乎每天拷贝"晴热+午后 雷阵雨"的模式，气温持续较高，其间天气有一个明显变化，由于对流条件不佳，午后局部雷阵雨登场 机会少，闷热持续。截至昨日（8月10日），苏城今夏已出现18个高温日，日最高气温为38.1℃，出现 在7月5日。 根据最新气象资料，预计苏城8月中旬降水量正常略偏少，旬内气温前低后高，旬平均气温较常年 正常略偏高。据市气象台最新预测，本周苏城13日前多雷阵雨天气，局部地区雨量大，并可能伴有7～8 级雷雨大风。13日夜里起以云系变化为主。新的一周，前期受降水和云系影响，气温小幅波动，13日起 气温回升，本周最高气温36℃，出现在16日。 ...

Core Viewpoint - The article discusses the recent weather patterns in China, highlighting the end of the strongest rainfall in the south this year and the upcoming weather changes, including a new round of rainfall and temperature fluctuations in both southern and northern regions [1][2][3][4]. Summary by Sections Recent Weather in Southern China - The strongest rainfall event in southern China this year began on May 27 and is now diminishing, with many areas expected to see a halt in rainfall tomorrow, although some regions may still experience scattered strong convective weather [3][4]. - The Central Meteorological Observatory forecasts moderate to heavy rain in several areas today, including parts of Fujian, Guangdong, Hainan, and Taiwan, with some regions experiencing heavy rain [3]. Upcoming Weather Changes - From May 31 to June 2, a new round of precipitation is expected in central and eastern China, with the core rainfall area shifting northward, particularly affecting the middle and lower reaches of the Yangtze River and northern Jiangnan [4]. - The article warns of potential secondary disasters due to the previous heavy rainfall, urging the public to remain vigilant and heed weather warnings [4]. Temperature Trends - Northern China will continue to experience warm weather, with temperatures in many areas exceeding 30°C, while some regions may approach 35°C [4][5]. - A significant temperature drop of 8°C to 14°C is anticipated in the eastern Northwest region, while northeastern areas may see record high temperatures before the cold air arrives [5]. - Southern temperatures will fluctuate closely with rainfall patterns, with expected highs around 30°C in Jiangnan before dropping to around 25°C as the new rainfall develops [5].

今天（5月22日）， 南方进入此轮降雨过程的最强时段 。同时，内蒙古中部、山西、河南等地也将迎来 降雨。受冷空气和降水影响，陕西、山西、河南、湖北等地 最高气温将下降超10℃，局地降幅可达 20℃上下 。 暴雨！大暴雨！ 这些地方进入降雨最强时段 22日至24日，南方地区将先后出现一次较强降雨过程，西南地区东南部、江汉、江淮、江南、华南地区 西部和北部有大到暴雨，江汉、江南、华南北部局地有 大暴雨，并伴有短时强降水、雷暴大风等强对 流天气 。中央气象台今日10时继续发布暴雨黄色预警和强对流天气蓝色预警。 暴雨黄色预警 预计5月22日14时至23日14时，黄淮西南部、江淮大部、江汉东部、江南北部和西部、西南地区东南 部、华南北部和西部及内蒙古中部等地部分地区有大到暴雨，其中，湖北东部、湖南东北部和西南部、 江西北部、安徽南部、浙江西部、广西西部等地部分地区有大暴雨。 上述部分地区伴有短时强降水， 局地有雷暴大风等强对流天气。 强对流天气蓝色预警 预计5月22日14时至23日14时，山西南部、河南东部、湖北西北部、安徽西南部、湖南北部和西南部、 江西北部、贵州南部、福建西北部、广西北部等地的部分地区将有 8级以上 ...

Summary of Key Points Core Viewpoint - A significant temperature drop has occurred across various regions in China due to the influence of cold air and rainfall, with some areas experiencing temperature decreases exceeding 20°C [1][2]. Temperature Changes - The most drastic temperature drop was observed in Shanxi, where most areas saw a decrease of over 20°C compared to the same time yesterday, with specific locations like Changzi dropping from 36.9°C to 10.3°C [2]. - Since May 19, a rare heatwave had affected the northwest and Huanghuai regions, breaking historical temperature records for May, with 103 meteorological stations reporting record high temperatures [1]. Future Temperature Trends - The cooling trend is expected to extend southward towards the Yangtze River, with Jiangsu and Anhui likely to experience temperature drops between 8°C and 16°C [3]. - In the coming days, areas with maximum temperatures above 30°C will significantly decrease, with northern regions seeing highs below 25°C and some areas even below 20°C, while southern regions will see temperatures around 25°C [4].

Group 1 - The overall weather pattern indicates a transition from less precipitation to increased rainfall, particularly in southern regions starting tomorrow [2][5] - The central meteorological authority forecasts significant temperature fluctuations due to the influence of active cold air masses, with a notable drop of 4 to 8 degrees Celsius expected in the central and eastern regions [7][9] - April was recorded as the warmest on record for many regions, with average temperatures in several provinces being the highest for the same period historically [7] Group 2 - The upcoming weather changes will lead to strong convective weather, including heavy rainfall and thunderstorms, particularly affecting the southern regions [2][5] - Specific areas such as Hainan, Guangdong, and parts of Yunnan are expected to experience heavy to torrential rain, with localized areas facing severe weather conditions [2][3] - The temperature in major cities like Zhengzhou is projected to fluctuate significantly, with a rise to 37 degrees Celsius today, followed by a drop to 24 degrees Celsius tomorrow [9]

Group 1 - The weather forecast indicates heavy snowfall in Heilongjiang Province from March 26, 20:00 to March 27, 20:00, with expected snowfall amounts of 5 to 10 millimeters in several areas [1] - Specific regions such as Qitaihe, Mishan, and Hulin may experience wet snow during certain periods [1] - The forecast also includes warnings for local authorities and individuals to take preventive measures against the expected heavy snow [1] Group 2 - The weather conditions from the night of March 26 to the day of March 27 include heavy snow in areas like southern Yichun, northern Harbin, and western Jiamusi, with some towns in eastern Qitaihe potentially facing blizzard conditions [2] - Rain mixed with snow is expected in Jixi, transitioning to heavy snow, while other regions will see varying degrees of snow [2] - The forecast for March 27 night to March 28 day includes light to moderate snow in eastern Jiamusi and eastern Qitaihe, with cloudy conditions and possible flurries in other areas [2] Group 3 - The minimum temperatures for the night of March 26 are forecasted to range from -20 to -18°C in northern Daxing'anling, while southern areas will see temperatures between -3 to -1°C [3] - The maximum temperatures for March 27 are expected to be between -3 to -1°C in northern Daxing'anling and eastern Jiamusi, with other regions ranging from 1 to 5°C [3] - Wind gusts of 5 to 6 levels are anticipated in the central and southern regions, leading to slippery roads and potential ice accumulation [3]