Meteorologist Ray Petelin joined the KDKA Weather Team in October 2018, but is no stranger to the weather in Pittsburgh and Western Pennsylvania. He has been forecasting in Pittsburgh since 2011 and ...

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 ...

(WHTM) — When temperatures rise, sometimes the air can feel dry and comfortable. But, sometimes it can feel downright tropical outside. This is caused by moisture in the air and it makes the air ...

Add Yahoo as a preferred source to see more of our stories on Google. YOUNGSTOWN, Ohio (WKBN) – There might not be a more misunderstood phrase in meteorology than “relative humidity.” Every summer ...

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 ...

Humans, microbes (bacteria, viruses, fungi), and plants all react differently to dry ambient conditions. Microbes adapt quickly by shrinking down, forming thicker membranes, and becoming dormant.

Industry leaders realized hundreds of years ago that their processes and machines operate best when the indoor relative humidity is maintained at an optimum level for their process. They found it was ...

I love getting your questions, and I got a great one from Steve! He asks: It's pouring rain, but the outdoor humidity gauge says 74% relative humidity. How's that possible? Shouldn't it be 100%? This ...