Fog is basically visible water particles in the air. One of my sensors outside measured the humidity with the fog, I came out with 95% - 100%.
Relative Humidity goes above 90%, that means there is dew or fog forming or has formed. Related Links will give you more information.
relative humidity
Around 20% is considered low. 30% to 40%, whilst on the dry side, are tolerable. 50% is comfortable, though that percentage can feel quite humid when the temps are high.
This is the measure of relative humidity. At 50 percent relative humidity, the air is holding half of what it could. It is relative humidity because it is related to the temperature and pressure of the air.
Relative humidity expresses a percentage of humidity in the air to the maximum amount of humidity that could be in the air. For example: when the temperature rises the air will be able to hold much more humidity so the relative humidity will drop.
To experience fog an area has to have a relative humidity of near or at 100%. The temperatures must be at or near the dew point. Deserts rarely have the humidity levels needed to produce fog.
The relative humidity is very high today. It is the fraction of water vapor in the air expressed as a percentage of the level where it condenses to a fog.
Relative Humidity goes above 90%, that means there is dew or fog forming or has formed. Related Links will give you more information.
Relative Humidity goes above 90%, that means there is dew or fog forming or has formed. Related Links will give you more information.
The air is holding as much water as it can. It will frequently be heavy fog or raining.
When the air temperature reaches the dew point, water droplets that are in the air become visible. This is how you would get fog. Relative Humidity goes soaring to near 100%.
relative humidity
Relative humidity.
relative humidity
Around 20% is considered low. 30% to 40%, whilst on the dry side, are tolerable. 50% is comfortable, though that percentage can feel quite humid when the temps are high.
30 to 50% of Relative humidity - the relative part of relative humidity being relative to the temperature.
To have fog an area must have a relative humidity of about 100%. This happens more frequently along the coast and rarely in the desert.