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 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.

Forecasters have issued a heat advisory for Friday in Miami-Dade, Broward and Palm Beach counties, with temperatures expected ...