ORLANDO, Fla. – It’s another sweltering day across east Central Florida and if you’re heading outside, be prepared. A Heat Advisory is in effect from 12 p.m. to 6 p.m. for the entire area, with dangerous heat index values soaring between 108° and 112°.

All of Florida will be under heat advisories Monday, July 21, as a heat dome spreads from the Ohio and Mississippi valleys. Here's what to know.

The chances for a scattered area of showers and thunderstorms to develop into something more increased overnight, but remain low, forecasters said.

The National Weather Service says heat indices as high as 114 are possible in Panama City and issued an advisory. Meanwhile an Atlantic system brews.

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.

The National Weather Service issued a heat advisory for west central Florida, warning of heat index values up to 110 degrees.