Michigan is heating up this week. Two southwest counties are already under a heat advisory because of dangerous heat index values.

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

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

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 Berrien counties.

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

Heat will remain the major story again on Tuesday as Acadiana continues to bake. A Heat Advisory has been issued for all of Acadiana with the heat index pushing between 106-111 degrees. Be careful with the heat if you work outside and make sure that you're drinking plenty of fluids and taking it easy when possible.

Heat and humidity will build as we enter mid-week. Part of Michiana will be under a Heat Advisory from 2 p.m. until 8 p.m. Wednesday. Highs Wednesday will be in the low 90s, but humidity will be very high. This will make us feel as hot as 105! The ...

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, Etowah, Calhoun, Cherokee, Jefferson, Shelby, St. Clair, Talladega, Chilton,