The temperature on any given summer day may be in the 80s or 90s. So why does it feel so much hotter and oppressive at times? That's the heat index doing its thing. Here's how it works: What is the ...

The heat index, or apparent temperature, combines air temperature and relative humidity to indicate how hot it feels. High humidity slows sweating, the body's natural cooling system, making ...

The heat index is a measure of how hot it really feels on your body when relative humidity is factored in with the actual air temperature. Since heat index values were devised for shady, light wind ...

A temperature of over 100 degrees doesn’t paint the whole picture when it comes to determining how hot it feels. The heat index does. What is the heat index? “It is essentially what temperature feels ...

If you thought the worst of the summer's sweltering temperatures were behind us, think again. Some schools closed early as the late-August heat wave gripping Ohio brought temperatures not seen in ...

Extreme levels of heat and humidity are forecast to spread across the country over the next two weeks, blanketing the Southwest, Midwest, and East Coast with high temperatures beginning this June 19 ...

Researchers showed in 2022 that heat index calculations by NOAA based on analyses from the 1970s don't adequately reflect the heat stress humans feel during the extremes of heat and humidity ...

Commercial devices like this are available to calculate the heat index, that is, how hot it actually feels given the humidity. But the algorithm used to compute the heat index breaks down under ...

NASHVILLE, Tenn. (WSMV) - Although the heat index is more widely used, the wet bulb globe temperature has many strengths. Have you ever heard of Wet Bulb Globe Temperature (WBGT)? It’s not a new term, ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. ROCHESTER, N.Y. (WROC) — Throughout the ...

Heat index across several parts of Florida could get as high as 105 May 19. Several high-temperature records were broken May 16-May 18. Rain may be possible later this week, but don't expect temps to ...