Foggy weather – definition
Weather is the state of the atmosphere in a given place and time. In a broader sense, it is meteorological conditions in a given area.
The total of weather phenomena in a given area over a long period (at least 30 years) is referred to as climate.
Fog is a phenomenon of condensation of water vapor contained in the air, which causes in the mundane layer of air a reduction of visibility below 1000 m.
When visibility is from 1000 to 2000m, it is commonly said to be foggy weather
When visibility is over 2000m, we talk about the occurrence of haze.
Fog can occur at both positive and negative temperatures. When the temperature is positive the mist consists of fine water droplets, and at a temperature below 0 ° C the mist may consist of fine droplets of subcooled water or ice crystals, possibly from a mixture of supercooled water droplets and ice crystals.
The fog differs from stratus clouds in that its lower base is in contact with the surface of the earth, while the cloud base is above the surface of the earth. When the droplets of mist grow, the fog can turn into a fine drizzle. Water contained in the fog can settle on various objects, creating an atmospheric sediment. Icing is a particularly dangerous phenomenon.