Domestic Weather Situation - Snow and significant temperature drops were reported in Northeast China and Xinjiang, with temperatures decreasing by 6-10°C in various regions [2][3] - Visibility issues due to dense fog were noted in parts of Sichuan, Chongqing, Jiangsu, Shanghai, Zhejiang, and Yunnan [2] Key Weather Forecast - A cold wave is expected to impact most of China from January 17 to 21, with temperatures dropping by 6-10°C, and some areas experiencing drops of over 12°C [3] - Rain and snow are forecasted across central and eastern regions, with heavy snow expected in parts of Shaanxi, Shanxi, Henan, Shandong, Hubei, Hunan, and Anhui [3] Global Weather Situation - Heavy rainfall was observed in regions including the Philippines, Australia, and parts of Europe, with localized heavy rain and flooding [4][5] - North Europe experienced significant snowfall, with temperatures dropping by 6-10°C in various areas [4] - The first typhoon of the year, "Lohan," is expected to bring heavy rain to the central and eastern Philippines, with potential for severe weather conditions [5] Future Weather Forecast - Specific forecasts for January 16-19 indicate varying precipitation across regions, with snowfall expected in Xinjiang, Inner Mongolia, and parts of Northeast China, while rain is anticipated in southern regions [9][11][12]

Core Viewpoint - A strong cold air mass is affecting northern China, leading to the lowest temperatures of the second half of the year, with significant rainfall expected in the Huaxi to Huanghuai regions [1] Temperature Changes - The average temperature in central and eastern regions is expected to drop by 6°C to 10°C, with some areas experiencing drops of 10°C to 14°C, and localized drops exceeding 15°C [1] - The lowest temperature line is projected to move south to northern Huabei, northern Shaanxi, and eastern Gansu [1] Wind and Rainfall Impact - Wind speeds in central and eastern regions are forecasted to reach 4 to 6 levels, with gusts of 7 to 9 levels, while eastern and southern sea areas will see wind speeds increase to 7 to 8 levels, with gusts of 9 to 11 levels [2] - From the night of October 16 to the night of October 17, areas including northeastern Sichuan, northern Chongqing, and parts of Hubei and Henan are expected to receive heavy to torrential rain, with cumulative rainfall of 100 to 150 millimeters [2] Geological and Public Safety Concerns - The prolonged and intense rainfall in parts of Huaxi, Huanghuai, and southern Huabei has exceeded 8 days this October, raising concerns about potential geological disasters and secondary hazards such as flash floods [2] - Public advisories recommend dressing warmly and being cautious of the weather changes due to the significant temperature fluctuations in northern and southern regions [2]

Core Points - Sichuan province experienced significant rainfall from June 28 to 29, with heavy rain primarily in the western and southern basin areas, leading to the evacuation of 29,142 people across 57 counties [1][2][5] Weather Forecast and Impact - The heavy rainfall is expected to continue until the night of June 30, with a yellow rainstorm warning issued for several cities, indicating potential heavy to torrential rain [2][6] - The rainfall intensity is notable, with some areas experiencing over 250 mm of rain, and the potential for localized extreme rainfall events [6][7] Geological and Flood Risks - An orange warning for mountain flood disasters was issued, indicating a high likelihood of such events in 11 counties, while 37 additional counties face a moderate risk [4][5] - The geological disaster risk warning covers 18 cities and 97 counties, marking the largest warning issued this summer in Sichuan [5] Emergency Response - The provincial geological disaster prevention office is actively monitoring and advising on potential hazards, urging residents in at-risk areas to evacuate and avoid dangerous locations [3][5]