The National Weather Service already has issued extreme heat warnings, watches and advisories across a swath of the Midwest ...

EDT the National Weather Service released a heat advisory valid for Wednesday between 2 p.m. EDT and 8 p.m. EDT for Cass and ...

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 ...

The National Weather Service released a heat advisory at 10:42 p.m. on Monday in effect until Tuesday at 9 p.m. for Blount, ...

The National Weather Service office in Mobile, Alabama, issued a heat advisory in Escambia, Santa Rosa and Okaloosa counties ...

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

Nashville faces a heat advisory with heat index values up to 109 degrees, urging caution and the use of air conditioning.

Central Pennsylvania is bracing for a significant heat wave that will peak Friday, with temperatures and heat index values ...

A Heat Advisory is in effect for Acadiana today and tomorrow as “feels like” temperatures near 110° each afternoon. Be sure ...

Heat will remain the major story again on Tuesday as Acadiana continues to bake. A Heat Advisory has been issued for all of ...

High pressure remains firmly in place for the time being and that is allowing us to see plenty of sunshine, but also hot and ...

A heat advisory for Florida's Treasure Coast is in effect from noon through 6 p.m., with heat index values from 109 to 112 ...