What does the foggy yellow warning mean?

Fog yellow warning means that fog with visibility less than 500 meters may appear within 12 hours, or fog with visibility less than 500 meters and greater than or equal to 200 meters has appeared and will continue.

Fog yellow warning signal is an early warning signal made by meteorological department before the arrival of fog through meteorological monitoring, reminding people to guard against the influence of fog, and the traffic department tries to reduce traffic accidents caused by fog freezing. Fog yellow warning signal is the first level of fog warning signal. Fog yellow warning means that fog with visibility less than 500 meters may appear within 12 hours, or fog with visibility less than 500 meters and greater than or equal to 200 meters has appeared and will continue.

Generally speaking, there are many fogs in autumn and winter morning, and when the water vapor contained in the air reaches the maximum, it reaches saturation. The higher the temperature, the more water vapor is contained in the air. 1 m3 air, the maximum water vapor capacity is 6.36g at 4℃; When the temperature is 20℃, the maximum water vapor content in 1 m3 air is17.30g.

Measures to deal with foggy weather

Fog weather causes low visibility near the ground, which affects people's travel, production and work, and is particularly prone to serious traffic accidents. Therefore, meteorological, public security, transportation, construction and other departments should cooperate closely to implement the meteorological information release system, and timely and accurately release foggy weather warning information and traffic control measures through television, radio, internet, newspapers and other media and mobile phones and electronic display screens, so as to effectively enhance the ability to deal with emergencies caused by heavy fog.

It is clearly required that all departments and enterprises conscientiously implement the 24-hour duty system and the leadership shift system. Establish a scientific and effective fog prevention and control mechanism, improve and implement a scientific fog prevention special plan, and timely grasp the fog weather forecast information and the time, road section and scope of fog occurrence. Strengthen the management of transportation enterprises and water ferries.

Ensure that after the accident, the emergency plan can be quickly started, and the linkage measures for traffic accident rescue in foggy days can be implemented to achieve rapid rescue, rapid exploration and rapid removal of the scene, so as to minimize losses.

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