Summary of Key Points Core Viewpoint - The weather in Beijing has been significantly impacted by recent snowfall, leading to low temperatures and warnings for residents to take precautions against cold and icy conditions [4][11][19]. Weather Conditions - From January 17 to January 18, the highest temperature recorded was -2.8°C and the lowest was -8°C [3]. - Snowfall occurred primarily from the evening of January 17 to the night, with an average snowfall of 1.2 mm across the city and a maximum of 9.9 mm in Fengtai District [4]. - Snow depth varied, with areas like Fangshan and Mentougou experiencing 10-20 cm of snow, while other regions had 0-4 cm [4]. Warnings and Precautions - A blue wind warning was issued, advising residents to be cautious of high winds and potential hazards from falling objects [11]. - A yellow warning for icy roads was also in effect, indicating that travel could be hazardous due to snow and ice accumulation [13]. Upcoming Weather Forecast - The forecast indicates continued low temperatures, with daytime highs around -5°C and nighttime lows dropping to -13°C [19][20]. - A gradual warming trend is expected next week, with temperatures potentially rising above freezing later in the week [20][31]. Health and Safety Advisories - Residents are advised to dress warmly and take precautions against cold-related health issues, particularly for vulnerable populations [22][25]. - Specific indices indicate high risks for cardiovascular issues and discomfort due to cold weather, suggesting limited outdoor activities [25][26][27].

Core Viewpoint - Beijing has issued blue snowstorm warnings for multiple districts, indicating expected snowfall of over 4 millimeters from the evening of January 17 to the daytime of January 18 [1][5][6][10][11]. Group 1: Warnings Issued - A blue snowstorm warning was issued for Shijingshan District, predicting snowfall of over 4 millimeters from the evening of January 17 to the daytime of January 18 [1]. - Mentougou District also issued a blue snowstorm warning, expecting similar snowfall amounts during the same period [5]. - Changping District has issued a warning for expected snowfall of over 4 millimeters from the evening of January 17 to the daytime of January 18 [6]. - Fengtai District's warning indicates snowfall of over 4 millimeters expected from the evening of January 17 to the daytime of January 18 [10]. - Fangshan District has reported ongoing snowfall with a warning for over 4 millimeters of accumulation expected until the daytime of January 18 [11]. Group 2: Weather Conditions and Safety Recommendations - The weather forecast predicts light snow during the day, transitioning to widespread snowfall at night, expected to last until the morning of January 18, with a gradual reduction in intensity by the afternoon [11]. - Traffic authorities recommend caution while driving in snowy conditions, advising to reduce speed, maintain distance, and use vehicle lights [11]. - Public transportation is encouraged for travel during the snow, and pedestrians are advised to wear non-slip footwear and avoid icy areas [12].