The National Weather Service issued an updated heat advisory at 3:43 p.m. EDT on Wednesday valid for Thursday between 11 a.m.

Extreme heat is blanketing the Chicago area starting Wednesday, with heat index readings expected to be over 100.The National Weather Service has issued a Heat Advisory, which went into effect for the ...

For the Charlotte area, and all areas covered by the National Weather Service out of Greenville/Spartanburg: the heat index ...