The heat index considers the actual temperature and amount of moisture in the air using the dew point or relative humidity.

A heat advisory has been issued for Miami-Dade and Broward counties for Monday and will be in effect noon to 6 p.m. South ...

The National Weather Service released a heat advisory at 11:48 p.m. on Sunday valid from Monday 11 a.m. until Tuesday 9 p.m.

A heat advisory was released by the National Weather Service on Monday at 12:23 a.m. valid between 10 a.m. and 6 p.m. for ...

On Monday at 12:56 a.m. the NWS Greenville-Spartanburg SC issued an updated heat advisory valid between noon and 8 p.m. The ...

On Sunday at 1:18 p.m. the NWS Greenville-Spartanburg SC released a heat advisory valid for Monday between noon and 8 p.m.

Forget about any worries of tropical weather today. Instead pay attention to the heat: temperatures in Jacksonville could ...

Heat is the deadliest weather threat, according to the National Weather Service’s report on weather-related fatalities.

The National Weather Service has issued a Heat Advisory for South Florida, promising sizzling days ahead, and emergency ...

The National Weather Service heat advisory began at 11 a.m. Saturday for much of North Carolina, including the all of the ...

At 1:02 p.m. on Friday, the NWS Raleigh NC issued an updated heat advisory in effect until 8 p.m. The advisory is for ...

Charlotte and surrounding areas are under a heat advisory Saturday with high temperatures expected throughout the weekend.