it means that liquid water droplets cannot form, instead water precipitates directly as frost.
Yes, it is possible for the dew point to be below freezing. Dew point is the temperature at which air becomes saturated with moisture and condensation forms. If the air is very dry, the dew point can be below freezing, meaning that the air is not saturated with enough moisture for condensation to occur at temperatures above freezing.
The dew point is the temperature at which air becomes saturated with moisture. When the dew point is below freezing, frost can form on surfaces as the moisture in the air freezes.
The dew point of a blizzard would typically be below freezing, around 32°F (0°C). In blizzard conditions, the air is often saturated with moisture, and when the temperature drops below freezing, this moisture can form into snowflakes.
When the dew point is below 0 degrees Celsius, it means the air is very dry and contains very little water vapor. This typically happens in colder temperatures and can lead to conditions such as frost or freezing fog forming.
When the dew point is below freezing, water vapor in the air will turn directly into ice crystals without first becoming liquid water. This process is called deposition. It can happen when the air is very cold and saturated with moisture, leading to frost or the formation of snowflakes without rain or fog.
supercooled
The dew point is a measure of the amount of water vapor in the atmosphere. As the temperature gets closer to the dew point, the humidity rises. When the temperature finally drops to the dew point (100% humidity), the the atmosphere is completely saturated with water, and it will start to rain (or snow, if the dew point is below freezing). Since the atmosphere is completely saturated when the temperature is at the dew point, it cannot go below the dew point.
In the northern region,where the cloud temperature and ground temperature remains below the freezing point,prcipitation occurs in the form of fog,mist and dew.
As air gets colder, the amount of water it can hold as water vapour goes down. It reaches a point where the air releases the water as dew but stays saturated with water vapour. If this point is below the freezing point of water, it is deposited as frost.
The Dew Point is the temperature at which the air is at 100% Relative Humidity. If the temperature fall below the Dew Point, then there is more moisture in the air than it can hold, and water condenses in the form of dew, mist, rain, etc.
dew point
frozen dew