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 ...

Knowing the difference between heat exhaustion and heat stroke could be the key to saving someone’s life. Here’s what you ...

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 ...

A dangerous heat wave continues across a large part of the United States, with more than 130 million people under extreme ...

Jacksonville is under an extreme heat warning until 7 p.m., with temperatures expected to climb into the hundreds and a feels ...

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

Extreme Heat Warning in Memphis with heat index up to 110°F, affecting surrounding areas until 8 PM CDT Thursday.

Central Florida is under a heat advisory on Friday, with temperatures expected to reach a heat index of 104 to 109 degrees.

A Heat Advisory has once again been placed over the entire Lowcountry and is set to be in effect from 11 a.m. to 8 p.m.

The Florida heatwave continues as a massive so-called "heat dome" brings dangerously hot temperatures to Orlando and Central Florida, and the rest of the Sunshine state.