Core Viewpoint - The article discusses the challenges faced by the civil aviation sector in East China due to a strong cold wave and the first snowfall of 2026, which has significantly impacted flight operations and necessitated a coordinated response from air traffic control and airports in the region [1][2]. Group 1: Weather Impact on Operations - A strong cold wave has brought the first snowfall of 2026 to cities like Hefei, Nanjing, Shanghai, and Hangzhou, posing severe challenges to civil aviation operations [1]. - The cold weather has led to increased demands for runway clearing and aircraft de-icing at airports, particularly in Hefei and Nanjing, as the peak travel season approaches [2]. Group 2: Flight Operations and Coordination - The East China Air Traffic Control Bureau has activated a regional coordination mechanism to address the challenges posed by the cold wave and increased flight volumes, organizing online meetings to optimize flight plans and minimize disruptions [2]. - On January 20, during the peak impact of the cold wave, the air traffic control center proactively requested adjustments to operational plans at key airports to ensure safe and efficient operations [2]. Group 3: De-icing Operations - Aircraft de-icing has become a critical aspect of ensuring flight safety during this cold wave, with a collaborative "de-icing-release" mechanism established between the Hongqiao and Pudong towers to prioritize de-iced flights for takeoff [2]. - As of January 21, a total of 212 de-icing operations were conducted at Shanghai's two airports, with 113 at Hongqiao and 99 at Pudong [2]. Group 4: Ongoing Challenges - The article notes that traditional winter weather challenges such as turbulence, fog, and snow will continue to affect air traffic control operations in East China as the winter season progresses [3].

Core Insights - The "May Day" holiday period (May 1-5) saw stable growth in civil aviation transportation in the Southwest region, with the Southwest Air Traffic Management Bureau implementing comprehensive measures to ensure safe and efficient operations for travelers [1][5]. Flight Operations - During the "May Day" holiday, a total of 27,472 flights were managed, representing a year-on-year increase of 3.41%, with an on-time performance rate of 90.83% [4]. - Chengdu Shuangliu Airport handled 2,941 flights (average of 588 flights per day), up 3.52% year-on-year, with a 90.21% on-time rate; Chengdu Tianfu Airport managed 5,598 flights (average of 1,120 flights per day), a 5.96% increase, with a 92.58% on-time rate [4]. - Other airports such as Kunming Changshui, Guiyang Longdongbao, and Chongqing Jiangbei also reported increases in flight operations and on-time performance rates during the holiday [4]. Safety Measures - The Southwest Air Traffic Management Bureau prioritized air traffic safety, implementing a dual prevention mechanism and enhancing control over critical operational aspects [5]. - The air traffic management system's thunderstorm season was extended from the original June-September to May-September, addressing challenges posed by complex weather conditions [5]. - Weather forecasts were provided to support early warnings and decision-making for air traffic operations, particularly during adverse weather events [5]. Traffic Management - The traffic management department enhanced collaboration based on weather conditions, initiating preemptive tactical traffic management measures to avoid flight congestion [7]. - Adjustments to flight plans were made to ensure operational capacity matched traffic flow, with significant reductions in flight congestion at departure points [7]. - The implementation of airspace adjustments in March improved efficiency, reducing flight distances and saving fuel during the holiday period [7]. Coordination and Service Quality - The integration of Kunming Changshui International Airport into the Chengdu-Chongqing Transport Coordination Committee improved collaboration among airports, airlines, and air traffic control [8]. - An efficient information-sharing mechanism was established to communicate critical updates on weather and flight dynamics, reducing delays and enhancing service quality [8]. - The operational adjustments at Chongqing Jiangbei International Airport's new terminal were optimized to ensure safety and efficiency during the holiday [8].