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 ...

Humidity doesn’t just make you feel sticky and uncomfortable – it also creates extra dangerous conditions on hot days.

News Storm Team Meteorologist Chris Bouzakis has a look at what the heat index is and how it can cause heat-related illnesses ...

If you are living in one of many areas of the U.S. currently experiencing a heat wave, your outdoor thermometer may say it's ...

An extreme heat warning and an extreme heat watch were issued by the National Weather Service in Jacksonville for July 28 and ...

Knoxville bracing for high heat index of 101 degrees, limited visibility due to fog, and potential thunderstorms; slight ...

Tampa reached another milestone on Tuesday afternoon, reaching an all-time record heat index of 119° at around 2:30 p.m.

On the heels of the hottest day in Tampa history, 100 degrees on Sunday, Tampa International Airport (the official reporting ...

Jacksonville, North, Northeast Florida: Dangerous heat today, with heat index of 108 to 115. Extreme heat warning and heat ...