What happens to smoke particles after sunset can depend strongly on something as familiar as the amount of water in the air.

New research led by the University of Michigan contains insights for public health officials and communities in Nigeria as ...

It is a number that represents how much water vapor is present now, with the amount at which water vapor saturates at that temperature taken as 100%.Therefore, even at the same 50%, the amount of wate ...

It was a December night, two months after the handover.After putting the children to bed, I walked down the second-floor hallway and heard a 'creak' under my feet.I walked down to the living room and ...

Officials are sounding alarms about the potential health effects related to this week’s oppressive humidity and intense heat in Southern California. Heat-related illness is a major issue in California ...

What experts describe as some of the worst humidity they’ve ever recorded in Southern California gripped the region Tuesday, making already hot, miserable conditions feel even worse. The extreme ...

Meteorologist Paul Douglas answers reader questions about the weather and other natural phenomena every couple of weeks. Submit your own questions below. I’ve lived in other parts of the country, and ...

There are multiple ways to describe how wet the air is (yes, pretty much all air is wet). What I mean by that is there are water molecules tucked in between the gases like nitrogen and oxygen that ...

SYRACUSE, N.Y. — Central New York is no stranger to high heat and humidity, but where does it come from and why does the humidity make it feel hotter? I'll explain how to calculate the heat index or ...

Music fans gather at the Minnesota Country Club Festival in St. Paul on July 10. As meteorologists, one of the questions we hear all the time is: “Why don't you talk about relative humidity?” After ...

Every time the UK experiences a heatwave, many ask the same question: why does the heat in Britain feel so unbearable when people seem to cope with it in Spain, Greece, or India? Humidity is part of ...

NASHVILLE, Tenn. (WSMV) - When summer arrives, meteorologists talk about both humidity and dew point. While the two are related, they are not the same thing. Relative humidity is a percentage that ...