A heat advisory is issued within 12 hours of extreme heat conditions. Typically, the heat index will be above 100 degrees and ...

A heat wave is currently affecting about 160 million people, according to the National Weather Service. Here's which states ...

East Tennessee under Heat Advisory with heat index up to 107 degrees, facing a risk of severe thunderstorms later in the, ...

Northeast and Midwest this week. Commuters are slowed on trains and boiling at bus stops.

The National Weather Service is cautioning Tri-State residents about extreme heat early this week with heat indices that ...

The National Weather Service released an updated heat advisory at 12:26 a.m. on Tuesday valid from noon until Wednesday 7 p.m ...

On Tuesday at 3 a.m. an updated heat advisory was issued by the National Weather Service valid between 10 a.m. and 8 p.m. for ...

The National Weather Service released an updated heat advisory at 9:10 p.m. on Monday valid from Tuesday noon until Wednesday ...

The National Weather Service issued an updated heat advisory at 8:10 p.m. on Monday in effect until Wednesday at 8 p.m. for ...