According to the Beijing Meteorological Administration website, the Beijing Meteorological Observatory issued a heavy fog yellow warning at 22:00 on November 4: It is expected that there will be heavy fog in Beijing from the middle of the night of the 4th to the morning of the 5th. Visibility in most areas is less than 1,000 meters, and in some areas it is less than 500 meters. Please take precautions.

According to the Beijing Meteorological Administration website, the Beijing Meteorological Observatory issued a heavy fog yellow warning at 22:00 on November 4: It is expected that there will be heavy fog in Beijing from the middle of the night of the 4th to the morning of the 5th. Visibility in most areas is less than 1,000 meters, and in some areas it is less than 500 meters. Please take precautions.