大家都在看： 长沙天气要开启"爬坡"模式了！ 短短五天 气温将从冰点边缘蹦到18℃ 不过升温之前 雨夹雪将率先登场 长沙市气象台发布的未来五天天气预报显示，今日（周六）雨夹雪将是主角，最高气温5℃，最低气温 仅1℃，凛冽的北风更添寒意。 长沙天气预报 不过 这股寒意只是短暂停留 2月1日（周日） 天气将切换为多云到晴天，最高气温跃升至10℃，最低气温仍只有2℃。 2月2日（下周一） 晴天间多云的天气让长沙短暂摆脱湿冷，最高气温升至14℃，最低气温4℃。 2月3日到4日 多云间阴天的天气持续在线，气温依旧保持上升势头，最高气温分别达到16℃和18℃，最低气温也分别 攀升至6℃、7℃，温润的东南风取代凛冽北风。 未来几天，长沙天气呈先冷后暖、逐步升温趋势，气温将从冰点边缘一路攀升至接近20℃，但市民朋友 切勿被回暖天气迷惑，防寒保暖仍是首要注意事项：雨夹雪天气出行，务必做好防滑措施，密切留意路 面结冰情况；气温回升后，需根据实际情况适时增减衣物，谨防因温差过大引发感冒。此外，可趁晴好 天气晾晒被褥、衣物，借助阳光驱散冬日潮气，也可走出家门，感受这份冬日里难得的暖意。 需特别注意的是，湖南省气象台预计，1月31日上 ...

南都讯记者王玮发自北京 2月恰逢春运关键期和春节假期，气象部门目前研判的天气形势如何？1月29 日，国家气象中心副主任黄卓在中国气象局召开的2月新闻发布会上表示，预计2月5-7日，较强冷空气 影响中东部地区，带来大范围大风降温天气，大部地区降温幅度有4～8℃，部分地区达10℃以上。 针对2月可能出现的局地冻雨的情况，黄卓表示，2月57日，河南西部、湖北西部、湖南西北部等地高海 拔山区局地将可能出现冻雨，可能导致路面积雪结冰和湿滑、塑料大棚压垮损毁、电力和通信设施发生 短路或断线，需加强设施巡检和除雪除冰工作，防范对交通运输、电力通信和城市运行等的影响。 黄卓表示，需做好能源保供，临时搭建物、广告牌、设施农业等防风加固工作，江河库湖和东部海区船 舶航行需防范大风危害，同时防范流感等疾病发生风险。冰雪旅游热门地区，如东北地区、内蒙古的游 客，外出注意防风防寒，重点保护头部、手部、脚部，防范因体感温度显著降低引发的失温冻伤、滑倒 摔伤等情况。对于户外作业人员，应配备专业防寒装备，设置临时取暖点，并加强现场安全管理；在强 冷空气影响期间减少或暂停户外高空、露天作业。 （文章来源：南方都市报） 黄卓介绍，2月5-7日、 ...

说到结冰，还有人认为，只有气温低于0℃才会结冰，这也是常见的认知偏差。 每到冬天，低温雨雪冰冻天气常导致路面结冰、出行受阻。在应对这类天气时，不少人存在认知误区，比如将冻雨等同于雪的一种等等。这些错误认知可能 影响避险效率，甚至引发意外。 0:00 降水形态复杂多样，是低温雨雪冰冻天气常见的特征之一，每当冻雨和雪一起出现，难免让人混淆。冻雨和雪虽然都是冬季降水，但形成过程和形态却不一 样。 雪是高空云层中的水汽直接凝华成的冰晶，落到地面时还是疏松的固体； 冻雨是过冷却水滴，从高空落下时温度低于 0℃，一旦碰到电线、树枝、地面等物体，会立刻冻结成光滑的冰层，引起电网覆冰、道路积冰等。 国家预警信息发布中心副首席 杨继国：天气预报中的"气温"指的是距地面1.5米高的百叶箱中测得的空气的温度，而非物体表面的实际温度。物体表面温度 会受到辐射冷却、风寒效应、物体材质等多重因素影响，往往与气温存在差异。例如在冻雨天气过程中，近地面气温可能在0℃以上，但道路、桥梁、电线 等物体受到辐射冷却影响，表面温度可能会降至0℃以下。此时，过冷水滴落下会立即在这些物体表面冻结成冰。 此外，低温雨雪冰冻灾害并非单一天气现象，而是寒潮、 ...

国家预警信息发布中心副首席 杨继国： 天气预报中的"气温"指的是距地面1.5米高的百叶箱中测得的空气的温度，而非物体表面的实际温度。物体表面温度 会受到辐射冷却、风寒效应、物体材质等多重因素影响，往往与气温存在差异。例如在冻雨天气过程中，近地面气温可能在0℃以上，但道路、桥梁、电线 等物体受到辐射冷却影响，表面温度可能会降至0℃以下。此时，过冷水滴落下会立即在这些物体表面冻结成冰。 降水形态复杂多样，是低温雨雪冰冻天气常见的特征之一，每当冻雨和雪一起出现，难免让人混淆。冻雨和雪虽然都是冬季降水，但形成过程和形态却不一 样。 雪是高空云层中的水汽直接凝华成的冰晶，落到地面时还是疏松的固体； 冻雨是过冷却水滴，从高空落下时温度低于 0℃，一旦碰到电线、树枝、地面等物体，会立刻冻结成光滑的冰层，引起电网覆冰、道路积冰等。 说到结冰，还有人认为，只有气温低于0℃才会结冰，这也是常见的认知偏差。 来源：央视新闻客户端 每到冬天，低温雨雪冰冻天气常导致路面结冰、出行受阻。在应对这类天气时，不少人存在认知误区，比如将冻雨等同于雪的一种等等。这些错误认知可能 影响避险效率，甚至引发意外。 此外，低温雨雪冰冻灾害并非单一天气现 ...

Group 1 - The core viewpoint of the article is that freezing rain is a hazardous weather phenomenon with a unique formation mechanism that poses significant risks to transportation, power supply, and public safety [1][2][5] Group 2 - Freezing rain occurs when supercooled water droplets in the atmosphere freeze upon contact with surfaces below 0°C, leading to ice formation that can create hazardous conditions such as icy roads and downed power lines [2][3] - The formation of freezing rain involves a complex process transitioning from solid to liquid to supercooled liquid and then to solid upon contact, which is different from regular rain and snow [3] - The article emphasizes the importance of public safety measures during freezing rain events, including reducing unnecessary travel, wearing non-slip shoes, and staying informed about weather warnings [4]

Summary of Key Points Core Viewpoint - The article discusses the weather conditions in central and eastern China, highlighting a warming trend from January 23 to 24, with a subsequent deterioration in air quality due to haze from January 23 to 25, followed by a cold front expected to clear the haze after January 25 [1]. Weather Conditions - A warming trend is expected across most of central and eastern China from January 23 to 24 [1]. - Air quality is predicted to worsen in regions such as southern and central North China, western Huanghuai, Fenwei Plain, and Sichuan Basin, with light to moderate haze expected from January 23 to 25 [1]. - After January 25, the arrival of cold air is anticipated to gradually dissipate the haze [1]. Precipitation Forecast - Light to moderate snow is forecasted for parts of northern and western Xinjiang, western Tibet, northeastern Inner Mongolia, and central and eastern Heilongjiang, with heavy to blizzard conditions (20-28 mm) expected in some areas of southwestern Tibet [1]. - Over the next 10 days, average temperatures in regions such as northern Xinjiang, Inner Mongolia, Northeast China, North China, Huanghuai, Jianghan, Jianghuai, and northwestern Jiangnan, as well as western Tibet, are expected to be 1-3°C lower than the historical average, with some areas potentially experiencing drops of over 4°C [1]. - From January 25 to 27, weak cold air will continue to affect Jiangnan and areas north of it, with snowfall expected in North China, Northeast China, and Huanghuai, and localized freezing rain in regions like Henan and Hubei [1].

Group 1 - The article discusses the weather conditions in Henan province, highlighting a temporary calm before a new round of rain and snow expected on Sunday, January 25 [1][5] - A yellow warning for road icing is in effect due to temperatures below 0°C, causing slippery road conditions that could severely impact traffic [3][5] - The minimum temperatures in eastern regions have dropped to -9°C, with most areas experiencing temperatures between -7°C and -5°C, emphasizing the need for caution and warmth [3][5] Group 2 - The forecast indicates that light rain may begin in the central and southern parts of the province on Saturday night, with rain and snow spreading across the province on Sunday [9] - Specific weather conditions include light snow in the north and west, rain or sleet in the southeast, and potential freezing rain in some areas, along with winds of 3 to 4 levels from the north [9] - The article references a historical poem to illustrate the current weather situation, indicating that true warmth is still awaited despite the temporary sunshine [9]

经济观察网 据央视新闻客户端消息，今天（1月22日），寒潮带来的雨雪过程基本结束。今后三天，全 国大部地区将喜提一段降水间歇期，大家可以抓紧时间晾晒衣物了。 中东部地区雨雪天气结束，西部地区将迎降雪。 新疆西藏等地有强降雪 局地警惕大暴雪 今天起至24日，新疆西部、西藏西南部将成为降雪核心区，明天是此轮降雪的最强时段。 预计新疆西部、西藏西南部等地将有大到暴雪，部分地区可达大暴雪量级。青藏高原也将自西向东出现 小到中雪。提醒当地的朋友们，务必高度关注天气和交通信息，做好相应防范措施。 南方回暖迅猛 北方步履蹒跚 寒潮一走，气温立刻开启"反弹"模式。今天白天，全国大部地区气温已开始回升，西北局地升温幅度超 过10℃。 但南北方的回暖步伐完全是不同的节奏。南方的回暖稳健有力，堪称"报复性升温"，尤其是江南一带。 未来几天，江南等地累计升温幅度可达10℃甚至15℃以上。 25日前后，最高气温10℃线将会北抬到长江沿线，江南中南部、华南多地最高气温会回升到20℃以上。 像是长沙，昨天最高气温仅有-2.4℃，预计到25日将回升至19℃，累计升幅超20℃。 相比于南方，北方的回暖在冷空气的拖累下，则显得步子缓慢、磕磕绊绊 ...

Core Viewpoint - The first cold wave of the year is significantly impacting various regions in China, with notable temperature drops and complex precipitation patterns expected to continue for several days [1][2][3]. Group 1: Characteristics of the Cold Wave - The cold wave has five main characteristics: a large impact area, significant temperature and precipitation changes, a complex range of rain and snow types, a notable risk of freezing rain, and relatively weak winds [2]. - The temperature drop is particularly pronounced in southern regions, with some areas experiencing a decrease of over 12 degrees Celsius, and localized drops reaching 16 degrees Celsius [3]. Group 2: Weather Forecast and Implications - The central meteorological authority has upgraded the emergency response to a level three due to the cold wave, with warnings for freezing and heavy snow [1]. - The core impact period of the snowfall is expected from January 19 to 20, with significant snowfall predicted in various northern regions [2]. - The cold wave is anticipated to weaken by January 21, but low temperatures in eastern regions may persist until January 25 [3].

Core Viewpoint - The Central Meteorological Observatory predicts freezing rain in regions like Guizhou due to a cold wave, highlighting the formation and public defense measures against this weather phenomenon [1]. Group 1: Formation of Freezing Rain - Freezing rain, also known as "ice rain," consists of supercooled water droplets that freeze upon contact with objects below 0°C [3]. - The formation of freezing rain requires specific weather conditions, including strong cold air to lower ground temperatures below 0°C and the presence of warm, moist air to provide the necessary water vapor for precipitation [5]. - Freezing rain is most common in winter and early spring, particularly in regions like Guizhou, Hunan, and Jiangxi, with mountainous and lake areas being more susceptible [7]. Group 2: Impact and Safety Measures - Freezing rain can disrupt road traffic due to ice accumulation on surfaces and can cause damage to crops and fruit trees [9]. - During freezing rain, it is advised to minimize outdoor activities and take precautions against cold and slipping, with specific recommendations for drivers to reduce speed and avoid sudden maneuvers [11].