我国中东部地区还将出现大范围雨雪天气，11日至13日，四川盆地、江汉南部、江淮中南部、江南、华 南及贵州等地有小到中雨，广西中部局地有大雨；新疆、西北地区、华北、黄淮、江汉北部、苏皖北 部、内蒙古中部及东北地区中南部等地有小到中雪或雨夹雪，局地大雪或暴雪。目前预报时效较长，公 众请关注临近预报、预警信息，做好雨雪、大风、降温等天气的防御工作。 今晨，南方多地出现大雾，监测显示，今天8时，福建尤溪能见度32米、九仙山能见度49米，出现特强 浓雾；重庆、四川、广东、湖南、湖北、广西、云南等局地能见度不足100米。 同时，安徽、浙江、湖南部分地区有霾天气出没，安徽阜阳现重度空气污染。今天夜间至11日，冷空气 活动进入渐歇期，华北南部到黄淮一带，大气扩散条件逐渐转差，也可能会出现霾。 12日起，受冷空气和降水天气共同影响，华北、黄淮等地大气扩散条件转好。本次冷空气强度可达寒潮 级别，10日起就将率先影响我国新疆，之后自西向东影响全国大部地区，各地气温将普遍下降6至 10℃，局地达16℃左右，北方部分地区伴有7至9级阵风，局地可达10级左右。 央视网消息：据中国天气网消息，今天（12月8日）早晨，南方多地出现雾或霾天气 ...

Summary of Key Points Core Viewpoint - The upcoming three days (October 29 to 31) will see frequent rain and snow in parts of the Tibetan Plateau, while precipitation will increase in the central and eastern regions of China, necessitating public attention to travel safety during inclement weather [1][2][7]. Weather Conditions - Significant snowfall was reported in parts of the Tibetan Plateau, with light to moderate snow or sleet observed in regions such as eastern Tibet and northern Sichuan Plateau [2][4]. - The Central Meteorological Observatory forecasts continued widespread rain and snow in the Tibetan Plateau, with central and eastern China experiencing increased precipitation, primarily light to moderate rain [2][6]. Temperature Changes - Southern regions will experience a slight drop in temperatures due to increased rainfall, with maximum temperatures in cities like Guiyang and Changsha expected to decrease significantly [5][8]. - A cold air mass is anticipated to impact central and eastern China later this week, leading to temperature drops of 4 to 6 degrees Celsius, with some areas experiencing drops exceeding 8 degrees Celsius [5][8]. Public Advisory - Meteorological authorities have advised the public to take precautions against cold weather and to be aware of the potential impacts of snow on transportation and agriculture [7].