俄罗斯遭遇强降雪天气，航空交通受影响

Group 1 - Moscow has been experiencing heavy snowfall since January 27, leading to an orange weather alert from the city government, with predictions of continued snowfall throughout the week [1] - The snowfall has reached record levels, with the highest accumulation since 1995, and the snow depth is expected to increase further [1] - Approximately 145,000 people and over 15,000 vehicles participated in snow removal operations in Moscow, with efforts focused on clearing main roads to ensure emergency and municipal vehicles can operate smoothly [3] Group 2 - Since the heavy snowfall began two weeks ago, snow piles have formed in the city center, reaching heights equivalent to two stories, with dump trucks continuously depositing snow [4] - In Moscow Oblast, 30,000 sanitation workers and 7,500 snow-clearing vehicles were deployed, clearing 7,000 kilometers of roads overnight on January 27 [4] - The heavy snowfall has also impacted air traffic, with Sheremetyevo Airport temporarily halting flights for several hours, although other airports in Moscow have not been affected [4]