Fog is not technically a cloud, but it is a common occurrence in meteorology. It occurs when the air near the ground is cooled to the dew point, and moisture in the air forms tiny water droplets that reduce visibility.
Fog is not technically a cloud, but it is a common occurrence in meteorology. It occurs when the air near the ground is cooled to the dew point, and moisture in the air forms tiny water droplets that reduce visibility.