Scorcher in metro Atlanta Saturday: heat index of 98-104 degrees expected

An image representing extreme heat on a city street

The National Weather Service forecasts a heat index of between 98 and 104 degrees for Cobb County and other parts of the region on Saturday, June 15, and has issued a hazardous weather outlook.

What is in the Hazardous Weather Outlook?

The hazardous weather outlook states the following:

This Hazardous Weather Outlook is for portions of North and Central Georgia.

.DAY ONE…Today and Tonight…

Heat index values between 98 and 104 degrees are expected in

northern and central Georgia today. This level of heat may affect

anyone without access to adequate hydration or effective cooling.

Isolated thunderstorms are expected between 2 PM and 10 PM in

northern and central Georgia. Isolated damaging winds could occur,

but widespread severe weather is unlikely.

.DAYS TWO THROUGH SEVEN…Sunday through Friday…

Hot weather will linger on Sunday, with heat index values expected

to reach 97 and 102 degrees in the afternoon. Precautions should

be taken to ensure adequate hydration and access to cooling.

Though a couple isolated thunderstorms may occur between Sunday

and Friday, the majority of the region should be storm free.

What is the heat index?

The NWS defines the heat index as follows on its website:

The heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature. This has important considerations for the human body’s comfort. When the body gets too hot, it begins to perspire or sweat to cool itself off.

Chart from NOAA showing relationship between relative humidity and temperature in heat index

What counties are affected in the hazardous weather outlook?

The following counties are listed in the outlook:

Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley, Butts, Carroll, Catoosa, Chattahoochee, Chattooga, Cherokee, Clarke, Clayton, Cobb, Coweta, Crawford, Crisp, Dade, Dawson, DeKalb, Dodge, Dooly, Douglas, Emanuel, Fannin, Fayette, Floyd, Forsyth, Gilmer, Glascock, Gordon, Greene, Gwinnett, Hall, Hancock, Haralson, Harris, Heard, Henry, Houston, Jackson, Jasper, Jefferson, Johnson, Jones, Lamar, Laurens, Lumpkin, Macon, Madison, Marion, Meriwether, Monroe, Montgomery, Morgan, Murray, Muscogee, Newton, North Fulton, Oconee, Oglethorpe, Paulding, Peach, Pickens, Pike, Polk, Pulaski, Putnam, Rockdale, Schley, South Fulton, Spalding, Stewart, Sumter, Talbot, Taliaferro, Taylor, Telfair, Toombs, Towns, Treutlen, Troup, Twiggs, Union, Upson, Walker, Walton, Warren, Washington, Webster, Wheeler, White, Whitfield, Wilcox, Wilkes, Wilkinson

About the National Weather Service

The National Weather Service (NWS) is a part of the National Oceanic and Atmospheric Administration (NOAA).

The NWS describes its role as follows:

The National Weather Service (NWS) provides weather, water, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy. These services include Forecasts and Observations, Warnings, Impact-based Decision Support Services, and Education in an effort to build a Weather-Ready Nation. The ultimate goal is to have a society that is prepared for and responds to weather, water and climate events.

Read all the Cobb County Courier climate and weather coverage by following this link.