"It's not the heat, it's the humidity." Actually, it's both, and that's where the National Weather Service's heat index comes in. Also known as the apparent temperature, the heat index is a number ...

It's not just you. It's hot out there — dangerously hot. Heat index advisories have been issued for the entire state of Florida with heat index values of 110-115 expected for July 21 as a heat dome ...

The Florida Panhandle is under a heat advisory until 7 p.m. Monday. Heat index values are expected to reach 106 degrees on Monday and Tuesday. The National Weather Service recommends drinking plenty ...

What does the "heat index" mean and how does it apply to people? -- S.S., Tulsa. The World Almanac and Book of Facts, updated annually, always includes the heat index ...

If you're planning on going outside today, be extra careful. It's hot out there, like, hot, hot. Heat index advisories have been issued across Florida, as the National Weather Service expects values ...

Extreme heat warnings, extreme heat watches and heat advisories are in effect across most of Florida. Some areas could see a heat index up to 115 degrees. See what you should do - or not do - during ...

Most of Florida is under either extreme heat warnings or heat advisories July 29. "Cooler" temperatures, along with chance for rain, may bring temps closer to average by the weekend or early next week ...

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 ...

Heat advisories have been issued for various parts of Florida, urging residents to take precautions. Dangerous heat is expected on Florida's Treasure Coast, with predicted heat index values from 109 ...