How is the fog formed?

Fog is a weather phenomenon consisting of tiny water droplets or ice crystals suspended in the air near the ground. It is the product of water vapor condensation in the air near the ground and mainly exists in liquid state. Simply put, water vapor condenses into tiny water droplets and is suspended in the air to form fog.

There are three main conditions for the formation of fog: first, cooling, second, humidification, and third, condensation nuclei increase water vapor content.

There are three reasons why the fog dissipates.

1. As the underlying surface gets warmer, the fog drops evaporate.

2. Second, the wind speed increases, blowing away or lifting fog into clouds.

3, that is, turbulent mixing, water vapor upload, heat transfer, and near-surface droplet evaporation.

Generally speaking, the duration of fog is mainly related to the humidity of the local climate. In arid areas, short fog can dissipate within one hour, while in humid areas, long fog is the most common, lasting about six hours. Visibility is low in foggy days, so you must pay attention to safety when driving.