Dew point/relative humidity questions come up fairly often and this is a good one. Water vapor in the atmosphere is pretty important for deep-sky observing and photography. The atmosphere can only ...

Dew point and relative humidity, two terms that have floated around many weather forecasts over the years. What exactly do they mean and when are they best used to describe the conditions outside? Let ...

Dew point is the temperature at which the air becomes “saturated” – in other words, it is holding all the water vapor it possibly can. If the temperature and the dew point equal each other, the water ...

There are various ways to measure the amount of water vapor in the atmosphere. The amount of moisture a given parcel of air can hold is dependent on the ambient temperature. Higher temperatures mean ...

Relative humidity measures how much moisture is in the air compared to how much it could hold at a given temperature. It is simply the dew point temperature divided by the air temperature, times 100.

JACKSONVILLE, Fla. – The Highway 82 Fire in Brantley County, Georgia, is now up to 32% contained. Weather conditions have been more favorable over the past day for containment. Factors for wildfire ...

It's sort of like the Goldilocks principle -- a room that's either too dry or too humid can influence transmission of COVID-19 and cause more illness or death, Massachusetts Institute of Technology ...

The heat index shows how humidity makes hot days feel hotter, and why direct sun can push dangerous conditions even higher.