Will the flight be cancelled in foggy weather?

This kind of weather needs to decide whether to cancel the flight according to visibility.

For the safety of passengers, the visibility of the plane is required to be at least 600 meters. If the visibility is less than 600 meters in foggy weather, the flight will be cancelled. However, if you can see more than 600 meters in foggy days and meet the take-off standard, you will not cancel the flight.

Clouds, fog, precipitation, smoke, haze, sandstorm and floating dust will reduce visibility. When the horizontal and oblique visibility of the airport drops below the critical value, resulting in line-of-sight obstacles, it will be difficult for the aircraft to take off and land.