At least a dozen high-temperature records were tied or broken across Eastern US in latest heat wave

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 p.m., the service said.