Group 1 - The temperature in Shanxi dropped by approximately 3°C on November 17 compared to November 16, marking a new low for this winter season [1] - The Shanxi Meteorological Station issued blue alerts for cold waves and strong winds, with maximum temperatures in northern and central-southern mountainous areas ranging from -7°C to 2°C [1] - In response to the cold wave, large agricultural markets organized vendors to stock up on vegetables and implement necessary insulation measures [1] Group 2 - In Taiyuan, the prices of major vegetables remain stable despite the cold weather [3] - A large agricultural market in Taiyuan has actively sourced seasonal and winter-stored vegetables from surrounding areas and other provinces to meet consumer demand [3] - In Shandong, agricultural technicians are guiding farmers on how to protect greenhouse crops from low temperatures by using insulation materials and techniques [4] Group 3 - Farmers in Liu Lou Village, under the guidance of agricultural experts, are actively covering greenhouses with insulation film to combat the temperature drop [7] - Experts recommend that farmers who have not yet covered their greenhouses should do so promptly and ensure that the internal temperature does not fall below 15°C [7] - Agricultural experts advise on managing temperature and humidity within greenhouses, emphasizing the need for controlled water and fertilizer application due to reduced root absorption in low temperatures [9]

Group 1 - Beijing is experiencing a cold wave due to strong cold air, with daytime gusts reaching 7 to 8 levels and maximum temperatures dropping to 7 degrees Celsius, while nighttime temperatures are expected to fall below freezing to minus 2 degrees Celsius [1] - The Beijing Meteorological Department has issued a yellow wind warning and a blue cold wave warning, advising the public to take precautions against the expected cold wave from November 16 to 17 [1] Group 2 - The Beijing Urban Management Committee announced that heating services officially began on November 15, with an "heating order" issued to ensure proactive service during the cold snap [2] - Heating units are advised to enhance standby duty and ensure efficient handling of emergencies during the cold weather [2] - Residents are encouraged to report heating issues directly to their heating service providers or to the municipal and district heating service supervision hotline if problems are not addressed promptly [2] Group 3 - The public is advised to stay away from tall buildings and temporary structures during high winds to prevent accidents from falling objects [5] - Health recommendations include dressing in layers to adapt to temperature changes and taking precautions for vulnerable body parts to prevent cold-related health issues [7] - Specific advice is provided for patients with chronic conditions, such as monitoring blood pressure and avoiding outdoor activities during extreme cold [7]

Weather Impact on Agriculture and Transportation - Snowfall in Heilongjiang province has affected local transportation and agriculture [1] - Harbin city experienced slippery roads due to snowfall, prompting traffic police to enhance patrols [3] - In Hegang city, local agricultural departments are working to minimize the impact of snowfall on crop growth [5] Northern Regions Experience Sudden Winter - Inner Mongolia saw a rapid drop in temperature with snowfall, leading to road closures for larger vehicles [8] - The average snowfall recorded in Alshaa city was 1.2 mm by the afternoon of October 17 [7] - Forecasts indicate continued temperature drops and strong winds in Inner Mongolia [10] Gansu Province's Response to Snowfall - Gansu province experienced its first snowfall of the autumn, with temperatures dropping by 6-10 degrees Celsius [10] - Local agricultural departments are coordinating with farmers to ensure vegetable supply meets market demand [11] - Snow removal operations were conducted on major roads to maintain traffic flow [13] Challenges Faced by Livestock Farmers in Xinjiang - Snowfall in Qitai County has complicated the autumn livestock transfer for herders [16] - Local police organized support for herders during the transfer process, ensuring safety and providing supplies [15]