Multiple states are under extreme heat warnings, advisories or watches on July 23, according to the National Weather Service.

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 is using new heat alert terminology beginning this summer to improve public awareness and understanding of what the weather service says is the leading cause of weather-related deaths in the country,

NWS expects the heat value to go up to 110 degrees. The organization warns that hot temperatures, coupled with humidity, may cause heat illness. Precautionary measures provided by NWS include drinking plenty of water, staying out of the sun and staying in air-conditioned rooms.

The National Weather Service issued heat advisories for several Central Florida counties on Friday, July 18, with more expected for the weekend.

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 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,

The National Weather Service issued Extreme Heat Watches and Flood Advisories throughout Illinois. Here's the forecast.