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In winter, all seems foggy which causes problems to all of us, but how this fog is created,
Let's know,
Fog is formed when there is a difference of less than 2.5 °C between the air temperature and the dew point, which is the temperature below which water droplets start to condense and form dew.
When the water vapor condenses, it turns into tiny droplets of water which gets suspended in air.
Water vapor exists in the atmosphere for many reasons, which includes evaporation of water from waterbodies, the movement of air over warm bodies of water,etc.
Fog usually forms at a relative humidity of about 100%, which occurs when there is increased moisture in the air or when the temperature is decreasing. If the air is unable to hold any further moisture, which causes the air to be supersaturated and effectively prevents fog formation. Fog causes precipitation through light showers or light snow.
Fog varies in thickness and depends on the altitude of the inversion boundary, which is the point where air temperature starts to decrease.
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