More than 51 million Americans are under heat alerts as cities break record-high temperature records

Atlanta, Georgia, tied its June 22 record with 98 degrees Fahrenheit Wednesday while about 80 miles south, Macon set a new heat record for the day with 105 degrees, according to the National Weather Service.

Zoo Atlanta announced on its website it would be closing early Wednesday and Thursday due to “extremely high heat indexes.” The care teams at the zoo will monitor and check on all animal habitats multiple times throughout the day to ensure their safety, zoo spokesperson Rachel Davis told CNN.
Nashville recorded its first day of 100 degrees for the first time in nearly a decade, according to the weather service. The city also broke its temperature record for the date of June 22, reporting 101 degrees shortly before 3 pm, the service said.

Record high temperatures were also reported in parts of Alabama, Arkansas, North Carolina, Ohio and Pennsylvania, according to the weather service.

One part of widespread extreme weather

It’s the second heat wave in as many weeks for many parts of the country. An enormous heat dome across the eastern US and the Midwest created record high temperatures in several cities last week. And other parts of the country faced extreme weather including historic flooding, wildfires and severe storms.

And there’s no relief in sight.

The heat in the South and the Plains is expected to continue to build over the coming days with much of the region expected to see more records, the service said.

About 65% of the US population will see temperatures above 90 degrees over the next week, and almost 55 million will be sweltering in temperatures at or above 100.

Officials in New Orleans have warned the heat index could be as high as 115 degrees this week, and the city has set up several cooling shelters.

The region was feeling the heat by Wednesday. By afternoon, Pascagoula and Slidell had both hit 100 degrees, while Baton Rouge and Gulfport thermometers were recording 98 degrees, the weather service in New Orleans said on Twitter.

At least five people died

At least five people died of heat-related causes last week — four in Georgia and one in Tennessee.

Power companies in the South surveyed by CNN earlier said they were prepared for this week’s heat wave.

“This is our ‘Super Bowl’ that we prepare all year for,” Tennessee Valley Authority (TVA) spokesperson Scott Fiedler said in a statement to CNN. “TVA is extremely well-positioned to meet power demand during this week’s hot weather. As you know, temperature and load go hand in hand. So we should see high loads the rest of this week.”

CNN’s Taylor Ward and Devon Sayers contributed to this report.

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