The National Weather Service (NWS) issued heat advisories for large portions of the East Coast and Midwest through most of the weekend, with temperatures in some areas predicted to reach up to 110 degrees F.

At 12:01 p.m. on Saturday, the National Weather Service issued a heat advisory valid for Sunday between 11 a.m. and 9 p.m. for Marion, Lamar, Fayette, Winston, Walker, Blount, Etowah, Calhoun, Pickens,

On Saturday at 1:36 p.m. a heat advisory was released by the National Weather Service valid from Monday 11 a.m. until Tuesday 8 p.m. for Northern Worcester and Southern Worcester as well as Franklin,

At 2:23 p.m. on Saturday, the National Weather Service issued a heat advisory valid from Monday 11 a.m. until Tuesday 8 p.m. for Passaic County.

Orlando heat wave triggers Heat Advisory with temperatures reaching mid to upper 90's and heat index up to 110°F.

Most of Ohio is under a heat advisory with temperatures that will feel 100-plus. Here's the difference between a heat advisory, heat watch and heat warning.

The National Weather Service issued a heat advisory at 2:23 p.m. on Saturday valid from Monday 11 a.m. until Tuesday 8 p.m. for Passaic, Hudson, Bergen, Essex and Union counties.

The National Weather Service office in Mobile, Alabama, issued a heat advisory in Escambia, Santa Rosa and Okaloosa counties between 10 a.m. and 7 p.m. Monday. Heat index values are forecast to reach as high as 109℉ in portions of south central and southwest Alabama, northwest Florida and southeast Mississippi.

Meteorologists warned that the oppressive heat wave is part of a larger system impacting much of the Southeast and Midwest.