新京报记者 王景曦 编辑 刘梦婕 北京市气象台首席预报员张琳娜介绍，预计平原地区积雪深度2至5厘米，山区积雪深度5至8厘米。预计 降雪12月12日（周五）凌晨从西部山区开始，早晨至上午逐渐影响平原地区，中午至前半夜为降雪明显 时段，后半夜平原地区减弱结束，山区降雪将持续至13日上午。 降雪过后北风加大，13日白天有3级左右偏北风，阵风6级左右，西部山区阵风可达7级以上；气温明显 下降，12日白天最高气温将降至-3℃，13日夜间最低气温降至-10℃。15日起气温缓慢回升。 受强冷空气影响，北京将出现今年入冬以来首场降雪，全市大部分地区中雪，山区及南部部分地区可达 大雪、局地暴雪。 ...

Core Points - Beijing is expected to experience strong winds and significant temperature drops from the night of November 15 to the night of November 17 due to a strong cold air mass [1] - Wind speeds are forecasted to reach around level 4, with gusts up to level 7, and mountainous areas may see gusts exceeding level 8 [1] - Daytime high temperatures are predicted to drop from 15°C on November 15 to 4°C on November 17, a decrease of 11°C over 48 hours [1] - Nighttime low temperatures are expected to fall from 3°C on November 15 to -3°C on November 16, a drop of approximately 6°C within 24 hours [1] - Light snow or flurries may occur in high-altitude mountainous areas on the night of November 15 [1] Weather Advisory - Citizens are advised to stay away from tall buildings, billboards, and temporary structures during strong winds to prevent accidents from falling objects [1] - Due to dry conditions, outdoor burning is prohibited to avoid forest fires [1] - With the sudden drop in temperature and wind chill effects, individuals are urged to dress warmly during outdoor activities to prevent colds [1] - Safety precautions regarding electricity, fire, and gas usage at home are recommended to prevent fire hazards and carbon monoxide poisoning [1]

Core Points - A strong cold air mass will begin affecting China from November 14, starting in Xinjiang and moving from west to east and north to south [1][4] - Most areas in central and eastern China will experience a temperature drop of 4°C to 8°C, with some regions in Inner Mongolia, Heilongjiang, Jilin, and Beijing-Tianjin-Hebei experiencing drops of 10°C to 12°C [2][4] Summary by Sections - **Temperature Changes** - The cold air mass will lead to significant temperature drops across various regions, with minimum temperatures in places like Gansu, Inner Mongolia, and Heilongjiang expected to fall below -10°C between November 18 and 19 [5][7] - Cities such as Harbin and Taiyuan will see maximum temperatures drop from over 15°C to below 4°C, with cumulative drops exceeding 10°C [7] - The eastern regions will experience more severe temperature drops compared to the western regions, with some areas in North China and Northeast China seeing cumulative drops of over 15°C [7] - **Weather Characteristics** - The cold air mass is characterized by "wind chill and dry cold," with minimal rain or snow expected due to weak warm and moist air flows [10] - Strong winds will accompany the temperature drop, particularly in northern regions like northern Xinjiang and Inner Mongolia, with increased wind activity expected in central and eastern areas starting November 15 [10]

Core Points - Typhoon "Phoenix" made landfall in Taiwan on November 12 and has since transformed into an extratropical cyclone [1][3] - The storm has caused significant rainfall and strong winds in various regions, including southeastern and northern Taiwan, eastern and southern Zhejiang, and northeastern Fujian [1][3] - A strong cold air mass is expected to impact China, leading to temperature drops of 6-8°C in most areas, with some regions experiencing drops of 10-12°C [4] Summary by Sections - **Typhoon Impact**: Typhoon "Phoenix" caused heavy rainfall and strong winds, with gusts reaching 11-12 levels in some coastal areas [1][3] - **Weather Forecast**: Strong winds of 6-8 levels are anticipated in the East China Sea, Taiwan Strait, and surrounding areas, with gusts potentially reaching 10-11 levels [3] - **Cold Air Mass**: A strong cold air mass will lead to significant temperature drops across various regions, with warnings for snow in areas like Xinjiang and Inner Mongolia [4]

Core Viewpoint - The article discusses the impact of Typhoon "Phoenix" as it transitions into a temperate cyclone, bringing significant weather changes across various regions in China, including strong winds, rain, and temperature drops [4][7]. Group 1: Typhoon "Phoenix" Impact - Typhoon "Phoenix" made landfall in Taiwan with maximum wind speeds of 9 levels (23 m/s) and a minimum central pressure of 990 hPa [4]. - The typhoon caused heavy rainfall in southeastern Taiwan, eastern and southern Zhejiang, and northeastern Fujian, with local areas experiencing torrential rain [2]. - Wind speeds reached 8-10 levels in coastal areas of Zhejiang and Fujian, with local gusts reaching 11-12 levels [2]. Group 2: Weather Changes and Forecast - A strong cold air mass is expected to affect China from November 13 to 17, leading to temperature drops of 6-8°C in most regions, with some areas experiencing drops of 10-12°C [7]. - The cold air will primarily impact northern Xinjiang, where snowfall is anticipated, including heavy snow in certain areas [7]. - Specific forecasts indicate that from November 13 to 14, regions such as northern Xinjiang and parts of Inner Mongolia will experience light to moderate snow or sleet, with heavy snow in localized areas [8].

Core Points - A strong cold air mass has caused a rapid transition to winter in Jilin Province, with significant snowfall reported in various regions [1][3] - The temperature in Jilin has experienced a "cliff-like drop," with forecasts indicating that most areas will see minimum temperatures fall below freezing after October 17 [3][5] - The cold weather is impacting agricultural activities, particularly the autumn harvest, prompting experts to advise farmers to take advantage of brief clear weather [5] Weather Impact - The northwest region of Jilin, particularly Baicheng, was the first to experience rain and snow, with Zhenlai County reporting heavy snowfall [1] - The average temperature in the province is expected to be around 1.5°C from October 18 to 27, significantly lower than the normal average of 5.5°C [3] - Snowfall has affected the activity of migratory birds in the Momoge Wetland, although the wetland has not yet frozen, minimizing immediate impacts on food availability for the birds [3] Heating Measures - In response to the cold weather, several cities including Songyuan, Tonghua, Baicheng, and the provincial capital Changchun have initiated heating measures starting from October 15 [5] - The heating system in Changchun was activated at midnight on October 17 to ensure residents can cope with the sudden drop in temperature [5]

Core Points - A strong cold air mass has caused a rapid transition to winter in Jilin Province, with significant snowfall reported in certain areas [1][3] - The temperature in Jilin has experienced a dramatic drop, with forecasts indicating that most regions will see minimum temperatures fall below freezing after October 17 [3][4] Weather Impact - The northwest region of Jilin, particularly Baicheng, was the first to experience rain and snow, with Zhenlai County reporting heavy snowfall [1][3] - The average temperature in the province is expected to be around 1.5°C from October 18 to 27, which is significantly lower than the normal average of 5.5°C [3][4] Agricultural Considerations - Jilin is a major agricultural province, with over 40 million acres of grain crops harvested, but still less than half of the total expected harvest [4] - Meteorological experts advise farmers to take advantage of the brief period of clear weather before the next round of snow to ensure a successful harvest [4] Heating Measures - In response to the cold weather, several cities including Songyuan, Tonghua, Baicheng, and Changchun have initiated heating measures starting from October 15 [4]

Core Points - A strong cold air mass is affecting China from October 16 to 21, leading to the lowest temperatures of the second half of the year in most regions [1][2] - Beijing is expected to experience a significant drop in temperature, with nighttime temperatures falling to single digits starting from October 17, and potentially reaching around 2°C on the night of October 19 [1][2] - The cold air mass is described as the strongest of the second half of the year, with a long duration and significant temperature drop [2] Summary by Sections Weather Impact - The cold air mass will result in continuous average temperatures below 10°C in Beijing from October 18 to 24, indicating an early onset of winter compared to the average date of October 31 [1] - Northern regions, including parts of North China and Liaoning, are expected to experience initial frost, while southern regions will see a temperature drop of 2°C to 4°C after previously being 5°C to 8°C above normal [2] Warnings and Precautions - Beijing's meteorological authorities have issued blue alerts for cold waves and strong winds, predicting a temperature drop of around 8°C and wind gusts reaching up to 7 levels in certain districts [2] - Frost warnings have been issued for specific districts, indicating potential impacts on agriculture due to low temperatures [2] Health Advisory - The Beijing Center for Disease Control advises the public to take precautions against the cold, including wearing appropriate clothing and protecting vulnerable body parts [3] - Emphasis is placed on the importance of flu vaccinations and maintaining good hygiene practices during the autumn and winter seasons, which are high-risk periods for respiratory diseases [3]

Core Points - Beijing Meteorological Station issued a blue alert for cold wave due to strong cold air, predicting a temperature drop of around 8°C from the night of October 16 to the night of October 18, with minimum temperatures in the plains expected to reach around 4°C [1] - A blue alert for strong winds was also issued, forecasting north winds of 3 to 4 levels in most areas of Beijing from noon to night on October 17, with gusts in certain districts reaching around 7 levels [1] - On October 16, the weather was overcast with light rain, and the maximum temperature was around 15°C, with significant rainfall expected during the night [1] Weather Alerts - During the strong wind warning, it is advised to enhance outdoor activity safety management and suspend organized outdoor activities such as climbing, hiking, and cycling [2] - Public should pay attention to travel safety and avoid tall buildings and temporary structures during the wind alert [2] - During the cold wave alert, it is recommended for the public to dress warmly to prevent colds and cardiovascular diseases [2]